I like that it's uses the direct connection cord (the figure 8 plug in thing) verses, what most the cheaper charges use, which is the USB adapter cord (you know, the computer type of electric cord). I always assume the direct connector (the c7 figure 8 plug-in thing, I don't know how to describe this stuff so you understand what I'm asking) is better. Like I'd assume it would more reliability provide a stronger electricity output and/or last longer. Does anyone know this information? Is the direct connection better than the USB plug-in connection? I can't find any information about this via Google search. It can't figure out what I'm asking but it's a pretty simple question. TY
I like how detailed your charger reviews are. Thank you for taking the time out and giving us the correct and needed information. Would like to see a review on the new MiBoxer C4-12 charger...
Those raised points on the sliders are very important because some cells have a flat top without a button, and won't charge if there is no pimple on the positive contact of the charger.
The point about raised contacts is some are better than others. If the points are too narrow button top cells can slip off, the best ones have raised points with flat ground surfaces avoiding the issue entirely
hello, did you test the battery charger in test mode, discharge mode, refresh mode?.. how is it? can you made a video with this topics? how are these modes used?
This is basically a documentary back when I made videos that were long, it shows a lot a whole lot if you bother to watch it So no I won't be making another video because I don't have it anymore, this is an older product and newer ones are out. But MiBoxer are not particularly good for chargers, not bad but this one had obvious flaws and isn't that good
I like that it's uses the direct connection cord (the figure 8 plug in thing) verses, what most the cheaper charges use, which is the USB adapter cord (you know, the computer type of electric cord). I always assume the direct connector (the c7 figure 8 plug-in thing, I don't know how to describe this stuff so you understand what I'm asking) is better. Like I'd assume it would more reliability provide a stronger electricity output and/or last longer. Does anyone know this information? Is the direct connection better than the USB plug-in connection? I can't find any information about this via Google search. It can't figure this simple thing that I'm asking. TY
It's about convenience mostly but some chargers can run at faster charging speeds with mains power, then again some support quick charge too with USB power. I wouldn't over think it, not about reliability it's about charging source and what suits you best. Either way I would avoid this model
parlate di tutto, ma trascurate la parte più importante, quant'é affidabile il caricatore miboxer c4? gli amper che riporta per ogni batteria sono reali?
Don't be ridiculous I didn't neglect anything, go watch the other video which heaps praise on this pile of junk. How can I make a video and talk about how reliable it is long term, in the video, if it's made when the product was released? I don't have a time machine, think about what you asked it's mind boggling. I already clearly state, it's not recommended because it trickle charges Li-ion cells, that is a huge no no. Miboxer had an opportunity to supply an updated one for testing, they declined to do so - I find that a red flag big time
I have the C8. It did not come with an adapter for AAA batteries. It may be for 8 batteries but I can never charge 8 batteries at once. I think an adapter may have helped because it is not as simple as just placing the triple-A batteries in and charging! It is a bit of a fiddle and even then it is not possible to charge 8XAAA batteries. It may be a better plan to have bought 2XC4s. Thanks for the review.
I've not use that one. What happened with this company is they stopped sending chargers in for review. But there were problems, so I conveyed that. I'm not sure how the other ones hold up, still I'm not entirely convinced by MiBoxer based off of this one or their lack of contact since.
What the listing says and what it does are two different things. I like to actually test products, and looking around nobody else seems to have picked up on it on the video reviews. A review to me is an critique of a product good and bad. It's not even hard to spot the voltage rises after it says it's charged, even without a multi meter you can see it. Trickle charge on Li-ion is a no no shouldn't be done, trickle on Ni-MH is fine but this increases the voltage not maintains it (which is what a trickle charge should do). I wouldn't use the charger it's not up to scratch
@Alex Dalex Yes sometimes you have to mark a product down for flaws and this is one example. Evidently they have fixed the trickle charge issue on Li-ion, but I can't confirm it as I don't have an updated unit to test. Miboxer stopped sending review samples, I wonder why? Doesn't inspire much confidence in the company, though they have some good ideas
I have just got hold of the C4. Does anyone know if they have changed this device because the screen layout on mine is different and I can’t, for the life of me, figure out how to enter the slot 4 capacity check mode. It is mentioned in the manual but holding that ‘Mode’ button does nothing for me. 😟 Any ideas?
@@MrBazReviews Thanks for coming back to me. I have realised that I have the C4UPGRADE (as listed on their site) which is the C4 version 3. It seems this feature has been removed :-( but the features do suggest that the charging now stops *fully* when complete which will avoid the trickle charge issue of the original C4. I might grab the DVM and try to test that. Thanks for the review.
Just bought one of these on Amazon, apparently it does not have manual discharging, it says so in the description but I guess I didn't look close enough. It looks exactly like yours, but the C4 badge is not Chrome. Also, there are more sellers on Amazon that have identical units to mine, but DO advertise manual discharging. So confused. Am I buying fake ones?
They have a few models I believe and a newer version of this. I also think they updated this after the complaints about trickle charging on the Li-ion cells. I can't be sure as Miboxer don't send samples to channels that don't give glowing reviews, hence I no longer get items from them. It's probably genuine just double check their site to see if it matches up
@@MrBazReviews Thank you for the quick reply! I'm not sure I'm going to bother returning it in exchange for the other that does advertise discharging. Definitely not a fan of that kind of business practice regarding reviews. That said, do you have a current favorite 4 slot charger? I see the Nitecore UM4, which you reviewed, is only few dollars more than the MiBoxer C4.
Hello, Thanks for your videos on chargers. I wanted to ask if it will charge 18650 Li-ion 3.7 V battery cells. The box says 4.2/4.35 V so I am not sure for my 3.7 V cells. Thanks
They quote the 4.2V which is the termination voltage of 3.6/3.7V Li-ion cells so it works for that. This isn't a charger I would recommend there are far better ones out there
@@MrBazReviews thanks Baz, I ended up ordering the star x4 for the revival of 0V cells and to use as power bank. However I also really liked the opus c3100 2.2 for the testing abilities. Thanks again 👍
I agree on your critique. Too bad slot 4 is only one where you can discharge then recharge to check capacity of battery. All 4 slots would be the way to go so I will not purchase this charger because of that issue.Thank You very much for this informative video.
Hi Bendari I have a few grumbles with this one had hoped Miboxer would have updated this model (idea is good and design I quite like) Ni-MH too slow charging is one and the test only on one slot another. If they can address that and the not needed trickle charge it would be worth a look potential for a great charger is here just needs some work
Yeah don't believe the labels, the best Samsung, Panasonic batteries are 2500 to 3000 mah, and never EVER buy Trustfire etc, bad enough they lie about the capacity but they're downright dangerous, there was a video on here of a guy that cut one open, inside was a cheap ass AA battery!
I currently use 'famous' Powerex MH-C9000 and am NOT satisfied at all. Considering C4 as replacement. As you are not satisfied with C4 100%, please let me know which is the Best charger in your opinion. I do like C4's display (instead of cycling data on MH-C). MH-C 9000 is confused many times when inserting discharged battery and refuses to charge it a t all. Thanks in advance.
MH-C9000 charges only Ni-MH and Ni-Cd. I do not have any Li-ion and am looking for charger to charge existing Ni-MH (and potentially get ready for Li-ion).
The D4 or VC4 are solid choices but lack testing features, the newer Miboxer chargers seem much improved though the updated 4 bay one is due out next month I believe. I have the SC4 coming in for review the latest model from Nitecore can't say yet how it holds up. I also find the Opus pretty good, but that doesn't have an activation feature. Xtar seem to be the best for that though the D4 can also do it (not as well)
Thank you for feedback. Based on numerous reviews starting with yours, I ordered Miboxer C4. NOW, do not tell me that 'updated C4 is coming out next month'! Where did you hear that??? I took a peek at few SC4 reviews; it look fancy, intelligent, etc. but at Double price than C4. Plus lowest charging current is 300mA vs. 150mA for C4. I still use AAA and they seldom hold more than 800mA thus I prefer to charge them slowly. Nevertheless, I am sincerely looking forward to see and hear your SC4 review! Please when you do it, spend some time with Ni-MH and not only with Li-ion batteries. Ni-MH are still the most used batteries.
I am working on the SC4 review it should be ready later on today possibly. Miboxer told me they have a new model 4 slot coming out next month so I will do a review on that when it turns up. I am testing the heat/termination on the SC4 to see how that does particularly with AA cells which was a weak point on the new i4 model
I was hoping that you would show how the discharge function works, since that is a major function of the unit...but all you did was just explain that the unit does it,...which we already know! I think you tried doing it by pressing the mode button?..but how many times did you press it?..I was hoping you would say something like " If you want to discharge the battery,...then you do this" ( at which point you would then show us which buttons you press ), and point to what it does on the screen,..as you are doing it,...so we would learn how to do it too. I sat and watched for 17 minutes hoping to learn how it is done,..and all I learned was that it does it, ( which I already knew )....somehow? I Bought a different version that has the three arrows laying horizontally instead of vertically like the one you have..but the instructions that came with this is useless!...Bad enough to have to try and undertsand poor Chinese translations!..Then they go and turn this thing into several different models! AAARRRGGGGHH!! ....Oh well, on to another video I guess...
Maybe you need to re watch the video 5:25 It's kinda simple you push the mode button with a cell in slot 4. Plus it's a review I didn't title it as "in depth walkthrough" even though I did cover that. Wow some people you can never please them!
Are you serious?No cutoff when completed?only one slot can test capacity?In a charger as big as my bedside table in 2019?Should have read the comments before buying!!!
I don't know if they fixed it, evidently they did but I've not had a sample sent to confirm that. Miboxer stopped sending me sample for review (I think we can guess why!) I only report what I find -same for any maker good/bad.
shame it looks a good charger, if it did capacity and resistance test in all 4 bays i would defiantly get one. cant someone make a charger that does all functions in one unit. thanks for the review
Yes could really use the testing on all 4 slots hopefully they will take on board some of the areas that need looking at and make an updated one. It could really do well in the charger market as few offer testing bar the expensive models
What cells are you trying to fit? The slots are not that long so 20/21700 cells won't fit (they don't on the D4 either) I don't recommend the charger as it doesn't stop charging, sadly most of the videos out there don't mention this. Evidently the issue is fixed but I can't confirm that as MiBoxer only send chargers to channels who heap praise on their products, not those who test them ;-)
Slots need to be a few mm longer, there is a V2 but as above I'm not likely to review it unless I try to get one from a supplier, their 2 slot chargers are decent enough one of them I probably won't be looking at any more I'd stick to Nitecore or Xtar
Depends on what you charge you can charge 4 cells at 0.8amp which is pretty decent (for 4). Would be nice to charge 1/2 at a faster rate. Ni-MH could also be quicker (half amp would do but AA's can go higher)
Charging faster does not mean better. Eventually fast charged batteries will lose capacity faster. Same as hype with charging plug-in hybrids with charger 3 type.
Correct up to a point some cells can take a faster charge and not degrade performance for this reason I recommend charging 18650's at up to 1.5 amps max, you can charge faster but it will slightly degrade the cycles (at 2.0 amps) - but it's related to cell type and capacity so big capacity cells can handle faster charges, smaller ones won't. 26650's can easily charge happily at 2.0 amps +, IMR/INR cells can handle fast charging because they are designed for heavy discharge. Protected ones should be charged at more modest speeds. The D4 is a good charger, it's limited though by the charging speed which is a bit too slow even for 4 x AA cells 375mA, or 4 Li-ion again you can easily charge at faster speeds without reducing performance long term
Apparently this charger is garbage with li-ion batteries, as it won't terminate the charge when full, which will wear batteries down as you can extensively see here: lygte-info.dk/review/Review%20Charger%20Miboxer%20C4%20UK.html what's your view please?
As the review says it's trickle charging Li-ion cells and that's a def. no no for any charger. The trickle charge is also a bit high on Ni-MH, not a massive problem for those cells but still something to note. There are some good ideas here, but it's all let down with some basic charging issues. Evidently Miboxer have changed the design, but I can't say because they don't send me chargers to review anymore, probably because I actually test and review them, rather than the other videos you'll see on the charger which just say the usual wow it's great stuff. You don't even need any test equipment to see the problem you can see the display voltage rise when the cells are supposed to have terminated. The Danish site is well known for detailed charger reviews, and he's absolutely correct on his assessment. Bottom line is no I don't recommend the charger
Chargers Amazon USA/Can/Europe - amzn.to/31Ei1xR UK - amzn.to/3qYNYcT
Help support real reviews - www.patreon.com/mrbazreviews
I like that it's uses the direct connection cord (the figure 8 plug in thing) verses, what most the cheaper charges use, which is the USB adapter cord (you know, the computer type of electric cord). I always assume the direct connector (the c7 figure 8 plug-in thing, I don't know how to describe this stuff so you understand what I'm asking) is better. Like I'd assume it would more reliability provide a stronger electricity output and/or last longer. Does anyone know this information? Is the direct connection better than the USB plug-in connection? I can't find any information about this via Google search. It can't figure out what I'm asking but it's a pretty simple question. TY
I like how detailed your charger reviews are. Thank you for taking the time out and giving us the correct and needed information. Would like to see a review on the new MiBoxer C4-12 charger...
No problem hope it was useful I've not heard from MiBoxer for a while so can't say if I'll be looking at that model
Those raised points on the sliders are very important because some cells have a flat top without a button, and won't charge if there is no pimple on the positive contact of the charger.
The point about raised contacts is some are better than others. If the points are too narrow button top cells can slip off, the best ones have raised points with flat ground surfaces avoiding the issue entirely
What is the length of the battery slots? Protected 21700 cells need 76-77mm or 3 inch slots
3:52
hello, did you test the battery charger in test mode, discharge mode, refresh mode?.. how is it?
can you made a video with this topics?
how are these modes used?
This is basically a documentary back when I made videos that were long, it shows a lot a whole lot if you bother to watch it
So no I won't be making another video because I don't have it anymore, this is an older product and newer ones are out. But MiBoxer are not particularly good for chargers, not bad but this one had obvious flaws and isn't that good
I like that it's uses the direct connection cord (the figure 8 plug in thing) verses, what most the cheaper charges use, which is the USB adapter cord (you know, the computer type of electric cord). I always assume the direct connector (the c7 figure 8 plug-in thing, I don't know how to describe this stuff so you understand what I'm asking) is better. Like I'd assume it would more reliability provide a stronger electricity output and/or last longer. Does anyone know this information? Is the direct connection better than the USB plug-in connection? I can't find any information about this via Google search. It can't figure this simple thing that I'm asking. TY
It's about convenience mostly but some chargers can run at faster charging speeds with mains power, then again some support quick charge too with USB power. I wouldn't over think it, not about reliability it's about charging source and what suits you best. Either way I would avoid this model
parlate di tutto, ma trascurate la parte più importante, quant'é affidabile il caricatore miboxer c4? gli amper che riporta per ogni batteria sono reali?
Don't be ridiculous I didn't neglect anything, go watch the other video which heaps praise on this pile of junk. How can I make a video and talk about how reliable it is long term, in the video, if it's made when the product was released? I don't have a time machine, think about what you asked it's mind boggling.
I already clearly state, it's not recommended because it trickle charges Li-ion cells, that is a huge no no.
Miboxer had an opportunity to supply an updated one for testing, they declined to do so - I find that a red flag big time
I have the C8. It did not come with an adapter for AAA batteries. It may be for 8 batteries but I can never charge 8 batteries at once. I think an adapter may have helped because it is not as simple as just placing the triple-A batteries in and charging! It is a bit of a fiddle and even then it is not possible to charge 8XAAA batteries. It may be a better plan to have bought 2XC4s. Thanks for the review.
I've not use that one. What happened with this company is they stopped sending chargers in for review. But there were problems, so I conveyed that. I'm not sure how the other ones hold up, still I'm not entirely convinced by MiBoxer based off of this one or their lack of contact since.
Does it display the real time current going through the battery?
It does because it also shows the trickle charge
all my cells are LiFePo4 26650...do you know so will 4 cells fit at the same time ???
I'm not aware of any 4 bay ones that will hold 26650 cells and LiFePo4 ones too. The Xtar dragon holds 4, but only normal ones not LiFePo4
So which 1 is better please? Do you recommend a better one...Thanks
D4 is still decent VC4 is alright too. For a tester just get the Opus it's a solid charger
That's curious that it continues to trickle charge the battery.
The listing actually says that it shouldn't.
Useful to know.
What the listing says and what it does are two different things. I like to actually test products, and looking around nobody else seems to have picked up on it on the video reviews. A review to me is an critique of a product good and bad. It's not even hard to spot the voltage rises after it says it's charged, even without a multi meter you can see it. Trickle charge on Li-ion is a no no shouldn't be done, trickle on Ni-MH is fine but this increases the voltage not maintains it (which is what a trickle charge should do). I wouldn't use the charger it's not up to scratch
Mr Baz Reviews Thanks for the useful information. :D Now I know to give this charger a pass.
@Alex Dalex Yes sometimes you have to mark a product down for flaws and this is one example. Evidently they have fixed the trickle charge issue on Li-ion, but I can't confirm it as I don't have an updated unit to test. Miboxer stopped sending review samples, I wonder why?
Doesn't inspire much confidence in the company, though they have some good ideas
Hi, love your videos! Quick question: can the can the VTS CB1 battery tester, tell if batteries are any good?
Thank you
I've not used it so can't say.
I have just got hold of the C4. Does anyone know if they have changed this device because the screen layout on mine is different and I can’t, for the life of me, figure out how to enter the slot 4 capacity check mode. It is mentioned in the manual but holding that ‘Mode’ button does nothing for me. 😟 Any ideas?
There is a newer version out I've not used it, so can't really say how to enter the cap check mode
@@MrBazReviews Thanks for coming back to me. I have realised that I have the C4UPGRADE (as listed on their site) which is the C4 version 3. It seems this feature has been removed :-( but the features do suggest that the charging now stops *fully* when complete which will avoid the trickle charge issue of the original C4. I might grab the DVM and try to test that. Thanks for the review.
Just bought one of these on Amazon, apparently it does not have manual discharging, it says so in the description but I guess I didn't look close enough. It looks exactly like yours, but the C4 badge is not Chrome. Also, there are more sellers on Amazon that have identical units to mine, but DO advertise manual discharging. So confused. Am I buying fake ones?
They have a few models I believe and a newer version of this. I also think they updated this after the complaints about trickle charging on the Li-ion cells. I can't be sure as Miboxer don't send samples to channels that don't give glowing reviews, hence I no longer get items from them. It's probably genuine just double check their site to see if it matches up
@@MrBazReviews Thank you for the quick reply! I'm not sure I'm going to bother returning it in exchange for the other that does advertise discharging. Definitely not a fan of that kind of business practice regarding reviews. That said, do you have a current favorite 4 slot charger? I see the Nitecore UM4, which you reviewed, is only few dollars more than the MiBoxer C4.
Just got a 21700 for it and it takes ages to charge is that normal or do I need to adjust anything ? Thanks
It's not a fast charger, and the 21700 cells are high capacity most of them. You'd want a 1.5-2.0 amp charging for quicker times
Hello,
Thanks for your videos on chargers.
I wanted to ask if it will charge 18650 Li-ion 3.7 V battery cells. The box says 4.2/4.35 V so I am not sure for my 3.7 V cells.
Thanks
They quote the 4.2V which is the termination voltage of 3.6/3.7V Li-ion cells so it works for that. This isn't a charger I would recommend there are far better ones out there
@@MrBazReviews thanks Baz,
I ended up ordering the star x4 for the revival of 0V cells and to use as power bank. However I also really liked the opus c3100 2.2 for the testing abilities.
Thanks again 👍
*xtar x4
I agree on your critique. Too bad slot 4 is only one where you can discharge then recharge to check capacity of battery. All 4 slots would be the way to go so I will not purchase this charger because of that issue.Thank You very much for this informative video.
Hi Bendari I have a few grumbles with this one had hoped Miboxer would have updated this model (idea is good and design I quite like) Ni-MH too slow charging is one and the test only on one slot another. If they can address that and the not needed trickle charge it would be worth a look potential for a great charger is here just needs some work
not terminating the charge with li-ion batteries is another. correct me if I'm wrong
Thank you brother.
No worries
what is approx charging time of those 4 batteries you have at 800mah ?
That's the charging time for Li-ion so divide the capacity by that charging speed just over 3 hours for 2600mAh cells
Will this charger work with ultra fire bro 18650 4000mAh 3.7v li-ion battery’s?
It works for any 18650 cell regardless of make
Yeah don't believe the labels, the best Samsung, Panasonic batteries are 2500 to 3000 mah, and never EVER buy Trustfire etc, bad enough they lie about the capacity but they're downright dangerous, there was a video on here of a guy that cut one open, inside was a cheap ass AA battery!
I currently use 'famous' Powerex MH-C9000 and am NOT satisfied at all. Considering C4 as replacement. As you are not satisfied with C4 100%, please let me know which is the Best charger in your opinion. I do like C4's display (instead of cycling data on MH-C). MH-C 9000 is confused many times when inserting discharged battery and refuses to charge it a t all. Thanks in advance.
What cells are not charging are they Li-ion or Ni-MH? Some chargers can activate low voltage cells some cannot.
MH-C9000 charges only Ni-MH and Ni-Cd. I do not have any Li-ion and am looking for charger to charge existing Ni-MH (and potentially get ready for Li-ion).
The D4 or VC4 are solid choices but lack testing features, the newer Miboxer chargers seem much improved though the updated 4 bay one is due out next month I believe. I have the SC4 coming in for review the latest model from Nitecore can't say yet how it holds up. I also find the Opus pretty good, but that doesn't have an activation feature. Xtar seem to be the best for that though the D4 can also do it (not as well)
Thank you for feedback. Based on numerous reviews starting with yours, I ordered Miboxer C4. NOW, do not tell me that 'updated C4 is coming out next month'! Where did you hear that???
I took a peek at few SC4 reviews; it look fancy, intelligent, etc. but at Double price than C4. Plus lowest charging current is 300mA vs. 150mA for C4. I still use AAA and they seldom hold more than 800mA thus I prefer to charge them slowly.
Nevertheless, I am sincerely looking forward to see and hear your SC4 review! Please when you do it, spend some time with Ni-MH and not only with Li-ion batteries. Ni-MH are still the most used batteries.
I am working on the SC4 review it should be ready later on today possibly. Miboxer told me they have a new model 4 slot coming out next month so I will do a review on that when it turns up. I am testing the heat/termination on the SC4 to see how that does particularly with AA cells which was a weak point on the new i4 model
I was hoping that you would show how the discharge function works, since that is a major function of the unit...but all you did was just explain that the unit does it,...which we already know! I think you tried doing it by pressing the mode button?..but how many times did you press it?..I was hoping you would say something like " If you want to discharge the battery,...then you do this" ( at which point you would then show us which buttons you press ), and point to what it does on the screen,..as you are doing it,...so we would learn how to do it too. I sat and watched for 17 minutes hoping to learn how it is done,..and all I learned was that it does it, ( which I already knew )....somehow? I Bought a different version that has the three arrows laying horizontally instead of vertically like the one you have..but the instructions that came with this is useless!...Bad enough to have to try and undertsand poor Chinese translations!..Then they go and turn this thing into several different models! AAARRRGGGGHH!! ....Oh well, on to another video I guess...
Maybe you need to re watch the video 5:25
It's kinda simple you push the mode button with a cell in slot 4. Plus it's a review I didn't title it as "in depth walkthrough" even though I did cover that. Wow some people you can never please them!
Are you serious?No cutoff when completed?only one slot can test capacity?In a charger as big as my bedside table in 2019?Should have read the comments before buying!!!
I don't know if they fixed it, evidently they did but I've not had a sample sent to confirm that. Miboxer stopped sending me sample for review (I think we can guess why!) I only report what I find -same for any maker good/bad.
Guess what?I followed the link to Amazon and they sent me a even crappier version that can only charge!no fast test no nothing xD
shame it looks a good charger, if it did capacity and resistance test in all 4 bays i would defiantly get one. cant someone make a charger that does all functions in one unit. thanks for the review
Yes could really use the testing on all 4 slots hopefully they will take on board some of the areas that need looking at and make an updated one. It could really do well in the charger market as few offer testing bar the expensive models
Which charger brand does the capacity and resistance in all bays?
I don't get this. I bought one and it can't fit batteries bigger than 18650. I bought it from the manufacturer directly. I feel cheated.
What cells are you trying to fit? The slots are not that long so 20/21700 cells won't fit (they don't on the D4 either)
I don't recommend the charger as it doesn't stop charging, sadly most of the videos out there don't mention this. Evidently the issue is fixed but I can't confirm that as MiBoxer only send chargers to channels who heap praise on their products, not those who test them ;-)
Mr Baz Reviews Mine stops charging and larger batteries do not fit on mine. It rubs against the case and I rather not force it on.
Slots need to be a few mm longer, there is a V2 but as above I'm not likely to review it unless I try to get one from a supplier, their 2 slot chargers are decent enough one of them I probably won't be looking at any more I'd stick to Nitecore or Xtar
NOT for me cause charging output is weak.My charger will charge 2 batteries @1 amp each!
Depends on what you charge you can charge 4 cells at 0.8amp which is pretty decent (for 4). Would be nice to charge 1/2 at a faster rate. Ni-MH could also be quicker (half amp would do but AA's can go higher)
Charging faster does not mean better. Eventually fast charged batteries will lose capacity faster. Same as hype with charging plug-in hybrids with charger 3 type.
Correct up to a point some cells can take a faster charge and not degrade performance for this reason I recommend charging 18650's at up to 1.5 amps max, you can charge faster but it will slightly degrade the cycles (at 2.0 amps) - but it's related to cell type and capacity so big capacity cells can handle faster charges, smaller ones won't. 26650's can easily charge happily at 2.0 amps +, IMR/INR cells can handle fast charging because they are designed for heavy discharge. Protected ones should be charged at more modest speeds.
The D4 is a good charger, it's limited though by the charging speed which is a bit too slow even for 4 x AA cells 375mA, or 4 Li-ion again you can easily charge at faster speeds without reducing performance long term
Apparently this charger is garbage with li-ion batteries, as it won't terminate the charge when full, which will wear batteries down as you can extensively see here: lygte-info.dk/review/Review%20Charger%20Miboxer%20C4%20UK.html what's your view please?
As the review says it's trickle charging Li-ion cells and that's a def. no no for any charger. The trickle charge is also a bit high on Ni-MH, not a massive problem for those cells but still something to note. There are some good ideas here, but it's all let down with some basic charging issues. Evidently Miboxer have changed the design, but I can't say because they don't send me chargers to review anymore, probably because I actually test and review them, rather than the other videos you'll see on the charger which just say the usual wow it's great stuff.
You don't even need any test equipment to see the problem you can see the display voltage rise when the cells are supposed to have terminated. The Danish site is well known for detailed charger reviews, and he's absolutely correct on his assessment. Bottom line is no I don't recommend the charger