Great project, Tim! Gonna wait for your next vid before modding all 5 of my 18Vxrp's. It's excellent, man! At lowes yesterday I saw 2pack 18v batteries $169 (just wrong). Thanks so much for sharing your solution.....following!!
Eager to see how you modified the old dewalt charger to charge the new lithium pack you made. I’m building a spot welder and ordering parts for the battery build. No one has a video on the charger mod, so you’d certainly be the first.
I plan to make a hybrid between an old Dewalt DC9116 charger to use its connection to the battery by eliminating the IN 110V input and placing a 22V Laptop charger, but I still don't know how to do it ...
I have a DeWalt charger that charged the Lithium cells like this in the older housing, it senses a magnet to charge lithium. When I rebuild these can I add a magnet inside and charge with my charger ?
As you said, the LiOn pack has a little magnet in it that the charger senses to put it into Lithium mode. That Lithium compatible charger does Nicads and other voltages and it does weird things with the current and voltage to figure out the pack it is charging. It also might shut off before my pack is all balanced. You can't charge a LiON over 4.25V or bad things happen - we dont know that the CV part of the DeWalt charger is no more than 21.25V. All we need is a very simple Constant Current 3A or so, Constant Voltage 21.5V with the BMS. The BMS protection/balance board protects the pack and stops when its balanced. I used a 24VDC 3-4A power brick and a simple CC-CV board from eBay to charge the pack. Links will follow in the build video.
@timgoihl Great intro! Where are the follow-up videos? I've found the latest batteries are the 21700. Pricing this to see how much it would cost is about $110 to make one 5S battery pack, and $170 to make two 5S packs (10x 21700 batteries, 2 BMS for 5S 21700, 5A CC CV power module, 24V 3A power adapter, 4-slot battery charger, misc wires & connectors)
only 5 will fit. see my video notes. i was able to fit 5 NCR2070C 3500mAh 30A batteries. They cost a lot more so your $/mAh is terrible. you will be surprised how low the 25R's will last, and you can charge them at 4A so less than 1 hr for a quick charge. the 5Ah Max batteries are wired 2p5s, but that pack is square. if someone was ambitious, you could make a 3D printed base that would adapt to the oval XRP case and fit 10 batteries into it! check out the shape of the DCB205 battery.
@@timgoihl - now I fully understand. I’ve seen another video where it was explained a little bit better that each 18650 battery must be connected to the BMS board. That’s why you are using 5 BMS board (for 5 batteries). Thanks for your explanation ! I like your videos and can’t wait for another one, hopefully soon. Subscribed !
@@mar1video Yes. Out of the many 'convert your tool-battery to lithium cells' videos, this is one of the few that does it the way it should be done, with a BMS with balancing-function on board, cells made for high-drain devices (for everyone thinking about re-using 'dead' laptop-cells for this, forget it, those are made for long-lasting, low power drain) and not just 'use an adapter' to charge it (or worse: just use the NiCd charger you already have for your tool-batteries) The BMS-board (if it's a good one) will not only protect against overcharging the cells, but also overvoltage on it's input, overvoltage on any cell in the pack, overdischarge and cell-imbalance. The last function will level all batteries as close as possible to the same open-cell voltage. It can't do magic though, if one cell performs a bit less good than the rest (which is almost always the case) that one will drain faster and will require more charge put into it, no balancing-circuit can do something about that.
@@weeardguy - thank you so much for this explanation. I’m so happy to see that UA-cam community is helping each other with so many difficult projects .
@@mar1video That's because I also think that the people who do show the right way of converting something to another battery-technology, deserve the credit ;) You're welcome.
Hi Tim, just spent $109 for 1 - 18v pack as all my other battery paks have finally stopped charging. Looking forward to that follow up video on how to put in the lithium batteries. Hope you can get'r done soon. Thanks, Tim H.
do the Li Ion batteries charge in the Nicad charger? i've been tossing up with that adapter Vs making something but thought they needed the lithium ion charger
Got the 30 amp bms and put it in, was 70mm x50 x 7. Had to put it on top of batts, cut a little in the cap to fit down over, works great. I even had a power meter from an old dead batt that I mounted on the front. This was my first with a bms, pryor lithium conversions I mounted power and balance connectors to cases, thx for the vid
Any update on when the next video is going to be released? I'm looking forward to them, particularly the ones on how you constructed the new pack, and how you charge it when it's dead (do you have to take the batteries out and slot them into a charger every time?)
I had the video all done, then figured out a better (easier) way to fit them in, so I have re-record it. its on my todo list. you dont have to take the batteries out - i converted one of my single battery chargers to do these LiON packs.
I finally made up one of these using the bms in your link. Mine must have been right at 20 amp. If I pulled trigger on drill quickly it just died, had to feather it then it ran, am ordering a 30 amp bms, looks bigger, hope it'll fit in
I think the BMS current rating is okay. Did you get the one from seller #1? I believe the problem is this Chinese board use the wrong capacitors on the board. I was having the same problem and put my oscilloscope on it and the startup spike of current caused it to trip. Only because it was only getting 20 milliseconds instead of the 200 milliseconds that the application note for the chip specifies. I changed the capacitor and then it worked. But that's too much to ask for people that are going to build this so I'm looking for a alternate board source.
Hi friend I am always attentive to your excellent videos. A question, what dimensions in mm has the BMS 5S board, I see that you used a 25 A board, is it enough? or better 100A I have some recycled 18650 laptop batteries of 2500mAp. I'm going to use them, how will they work? Greetings from Venezuela
The board is 48x32mm. the board says it is 25A but it is really 66A. The over-current is programmed by the 2 parallel R003 (0.003ohm) current sense resistors you can see in the pictures here www.ebay.com/itm/5S-20A-Balance-Li-ion-Lithium-18650-Battery-Packs-BMS-Circuit-Protection-Board/192751663071. 0.1v/0.0015ohm = 66A, so that is plenty. your laptop batteries will *not* work. They have 2500 mAhrs, but low ***Max Continuous Discharge Current(A)***. The INR18650-25R have 25A. See the spec sheet I linked. Another video tried to do this with the NCR18650B 3400 mA hr battery... it would spin, but had no power b/c the battery could not deliver the current (the internal resistance of the battery is too high causing very big voltage loss) See specs www.batteryspace.com/prod-specs/NCR18650B.pdf. They have high mAh rating but low discharge current of about 5A continous. So good for some applications, but not power tools.
@@joseluisprieto3438 Click 'Show more' below the video for links. INR18650-25R same as dewalt uses! $3.80 each. www.batteryjunction.com/samsung-inr18650-25r.html
Don't be foolish. Those batteries are from the NiCd/NiMh era, a time not a single manufacturer made batteries that were interchangeable on all their machines. That's only something from the last 5, maybe 10 years.
You need 5 batteries to get 18.5v=3.7*5 nominal, and 5 18650s will fit in the case. I also got 5 20700s to fit. It you have a 3D printer you could make a case that would hold 5S2P like the 20-volt Max 5AH packs. But my 2.5AH pack really holds up well. These are 3500 milliamp hour 30 amp batteries that will fit www.18650batterystore.com/20700-p/sanyo-ncr2070c.htm.
@@timgoihl Can I charge the new batteries (Lithium) with a Dewalt Dc9310 charger? or do I have to put a charging pin and use for example a laptop charger (Notebook)?
@@joseluisprieto3438 The Dewalt charger is for their XRP lithium which uses LiFE batteries. Also the LiOn battery pack has a little magnet in it that the charger senses to put it into Lithium mode. That Lithium compatible charger does Nicads and other voltages and it does weird things with the current and voltage to figure out the pack it is charging. It also might shut off before my pack is all balanced. You can't charge a LiON over 4.25V or bad things happen - we dont know that the CV part of the DeWalt charger is no more than 21.25V. All we need is a very simple Constant Current 3A or so, Constant Voltage 21.5V with the BMS. The BMS protection/balance board protects the pack and stops when its balanced. I bought a 24VDC 3-4A power brick and a simple CC-CV board from eBay to charge the pack. I added the Links to those items in the video notes. I will fit the cccv board inside my basic DeWal nicad charger box.
My question is that the DW9310 Charger indicates that it charges the NiCd, but it also charges the XRP Lithium Ion batteries Can I use the charger with the 5 18650 batteries and a BMS 5S? or is it not advisable? Cheers Excuse my questions, I don't know much about electronics.
Hi, I tried this the other day, I made a 5s battery pack with bms, and put it into my old 18v Dewalt drill. The drill is starting to smell like it is smoking, so I was wondering if the voltage is to high? Do you know what a fully charged Nihm battery voltage is? The 5s battery I tried actually only had 19.8V on it, so not much higher than 18V. I hope you can help me.. :)
check this batteryuniversity.com/learn/article/charging_nickel_based_batteries. Charged NiCd voltage is 1.3 to 1.4 x15 cells is 19.5 to 21v full charge. LiON is 4.2x5cells = 21V, but the LiON drops very rapidly to like 3.7-3.8v (3.8x5-19v then holds there for a long time. So its the same voltage. Is this happening under load? The LiOn's may be able to provide more current, and heat (smoke) is I^2R (current squared times winding resistance) so more current means more heat... you may have to watch that if you are really pushing your tools...
I’m doing the same, I have some 30A continuous drain cells from battery hookup on the way. Theoretically, the charge voltage is the same for the 15s nicd pack and the 5s li ion pack. I want to use the original charger, have you tested this, or do I have to use my dc to dc converter?
I sorta answered this in another comment... You must use a 5S BMS protection board to properly charge and protect each individual cell. The DeWalt charger cant do that. The Dewalt charger is for their XRP lithium which uses LiFE batteries. Also the LiOn pack has a little magnet in it that the charger senses to put it into Lithium mode. That Lithium compatible charger does Nicads and other voltages and it does weird things with the current and voltage to figure out the pack it is charging. It also might shut off before my pack is all balanced. You can't charge a LiON over 4.25V or bad things happen - we dont know that the CV part of the DeWalt charger is no more than 21.25V. All we need is a very simple Constant Current 3A or so, Constant Voltage 21.5V with the BMS. The BMS protection/balance board protects the pack and stops when its balanced. I bought a 24VDC 3-4A power brick and a simple CC-CV board from eBay to charge the pack. Links will follow in the build video.
I'm not quite sure what you're asking. Can you use 20 volts on a 14 4 volt tool? Seems like a little bit much voltage. The full charge on the 14.4 volt tool is 1.4v*12cells=16.8v. lithium cells are 4.2 volts full charge so four cells should do it 4*4.2=16.8. so if you can fit the batteries into the old case and find a 4S BMS board it should work fine.
@@timgoihl I said: "new Li-Ion 14v battery to power a 14v Ni-Cad tool" so is: can I use a dewalt li-ion 14,4v battery with a rail type connection, with this adapter to power a tool that uses a 14,4v Ni-Cad pistol type connection?
We don't have 14.4V slide type batteries in the USA. I've never seen them before. If you're asking if the DCA1820 adapter would work on 14.4 volt tools, I don't know. I only owned 18 volt XRP tools and now 20 volt max tools. I'm guessing not because I'm assuming that they made the pistol 14v incompatible with the 18-volt pistol otherwise people would be over voltaging their tools all the time.
@@reginaldbowls7180 If you're not going to provide a link, your comment is not credible. If you are talking about something like this a.co/d/8mqpUge, its a fake battery. You cant fit 6AH of tool grade (High Amp Hr) LiON batteries in the XRP case. The seller is XNJTG a Chinese company. Just b/c amazon sells it doesnt mean its real. You have to look at the seller.
Yes, but the Dewalt charger is for their XRP lithium which uses LiFE batteries. Also that pack has a little magnet in it that the charger senses to put it into Lithium mode. That Lithium compatible charger does Nicads and other voltages and it does weird things with the current and voltage to figure out the pack it is charging. It also might shut off before my pack is all balanced. All we need is a very simple Constant Current 3A or so, Constant Voltage 21.1V. The BMS protection/balance board protects the pack and stops when its balanced.
We want to be very nice to our new lithium batteries, so we use a CCCV, constant current, constant voltage charger. I have one linked in the video description below. I tested it just using alligator clips to the battery terminals, but my plan is to put that charger board inside one of my old 18 volt chargers to make it quick and easy.
Any chance we could get an update PLEASE 😋👍🏼 thank you 😊
Great project, Tim! Gonna wait for your next vid before modding all 5 of my 18Vxrp's.
It's excellent, man!
At lowes yesterday I saw 2pack 18v batteries $169 (just wrong).
Thanks so much for sharing your solution.....following!!
I'm looking forwards to any follow up video you could put together on this.
I've been studying battery repairing and discovered a fantastic website at Magic Mender Wizard (check it out on google)
Such a great video! Did you ever do a follow-up showing how you completed the process? Thank you!
Tim, have you put up the other 4 videos?
Eager to see how you modified the old dewalt charger to charge the new lithium pack you made. I’m building a spot welder and ordering parts for the battery build. No one has a video on the charger mod, so you’d certainly be the first.
I plan to make a hybrid between an old Dewalt DC9116 charger to use its connection to the battery by eliminating the IN 110V input and placing a 22V Laptop charger, but I still don't know how to do it ...
Where is the follow up video
I have a DeWalt charger that charged the Lithium cells like this in the older housing, it senses a magnet to charge lithium. When I rebuild these can I add a magnet inside and charge with my charger ?
As you said, the LiOn pack has a little magnet in it that the charger senses to put it into Lithium mode. That Lithium compatible charger does Nicads and other voltages and it does weird things with the current and voltage to figure out the pack it is charging. It also might shut off before my pack is all balanced. You can't charge a LiON over 4.25V or bad things happen - we dont know that the CV part of the DeWalt charger is no more than 21.25V. All we need is a very simple Constant Current 3A or so, Constant Voltage 21.5V with the BMS. The BMS protection/balance board protects the pack and stops when its balanced. I used a 24VDC 3-4A power brick and a simple CC-CV board from eBay to charge the pack. Links will follow in the build video.
Hello can you make part 2 please? A break down of the steps and materials would be great!!!
The video is in progress. If you read the video description, all of the materials are listed.
Any videos on the process of converting to the lithium ion batteries? I have several packs that are on their last amp.
can't find your video on the lithium battery's
great video. cant wait for the second part. I want to do the same thing
@timgoihl Great intro! Where are the follow-up videos?
I've found the latest batteries are the 21700. Pricing this to see how much it would cost is about $110 to make one 5S battery pack, and $170 to make two 5S packs (10x 21700 batteries, 2 BMS for 5S 21700, 5A CC CV power module, 24V 3A power adapter, 4-slot battery charger, misc wires & connectors)
Just came across your fabulous video! I am by no way battery smart so definitely looking out for your follow up video! Thanks again
I didn’t have a chance to open up my battery pack , but is there a way to fit more 18650 batteries inside to boost the capacity and extend use time ?
only 5 will fit. see my video notes. i was able to fit 5 NCR2070C 3500mAh 30A batteries. They cost a lot more so your $/mAh is terrible. you will be surprised how low the 25R's will last, and you can charge them at 4A so less than 1 hr for a quick charge. the 5Ah Max batteries are wired 2p5s, but that pack is square. if someone was ambitious, you could make a 3D printed base that would adapt to the oval XRP case and fit 10 batteries into it! check out the shape of the DCB205 battery.
@@timgoihl - now I fully understand. I’ve seen another video where it was explained a little bit better that each 18650 battery must be connected to the BMS board. That’s why you are using 5 BMS board (for 5 batteries).
Thanks for your explanation !
I like your videos and can’t wait for another one, hopefully soon.
Subscribed !
@@mar1video Yes. Out of the many 'convert your tool-battery to lithium cells' videos, this is one of the few that does it the way it should be done, with a BMS with balancing-function on board, cells made for high-drain devices (for everyone thinking about re-using 'dead' laptop-cells for this, forget it, those are made for long-lasting, low power drain) and not just 'use an adapter' to charge it (or worse: just use the NiCd charger you already have for your tool-batteries)
The BMS-board (if it's a good one) will not only protect against overcharging the cells, but also overvoltage on it's input, overvoltage on any cell in the pack, overdischarge and cell-imbalance. The last function will level all batteries as close as possible to the same open-cell voltage. It can't do magic though, if one cell performs a bit less good than the rest (which is almost always the case) that one will drain faster and will require more charge put into it, no balancing-circuit can do something about that.
@@weeardguy - thank you so much for this explanation. I’m so happy to see that UA-cam community is helping each other with so many difficult projects .
@@mar1video That's because I also think that the people who do show the right way of converting something to another battery-technology, deserve the credit ;)
You're welcome.
Thanks for the reply, didn't see others with my same question. Modding the charger sounds like a good idea, thnx again, keep making these videos.
Anxiously awaiting future videos !
Great stuff !
🤔
😁
Hi Tim, just spent $109 for 1 - 18v pack as all my other battery paks have finally stopped charging. Looking forward to that follow up video on how to put in the lithium batteries. Hope you can get'r done soon. Thanks, Tim H.
I wish you would make the further videos. I bet they'd be well done.
Great video, any updates on the next video?
do the Li Ion batteries charge in the Nicad charger? i've been tossing up with that adapter Vs making something but thought they needed the lithium ion charger
Would love to see a followup video on this!
Looking forward to the upgrade video coming out
Great video. Can you supply part numbers for your cell voltage monitor display? Also, how do you charge your new Li packs?
Got the 30 amp bms and put it in, was 70mm x50 x 7. Had to put it on top of batts, cut a little in the cap to fit down over, works great. I even had a power meter from an old dead batt that I mounted on the front. This was my first with a bms, pryor lithium conversions I mounted power and balance connectors to cases, thx for the vid
Can you post a link to the BMS you used? Does it do battery balancing?
What is the fix for the conversion pack? It doesn't work on the DeWalt 18 v 18 gauge nailer.
I also await the follow up videos
Can you show us what you did.
@timgoihl Have you abandoned this project? It seems like you had a great start. Would you please advise your intentions? Thanks.
Any update on when the next video is going to be released? I'm looking forward to them, particularly the ones on how you constructed the new pack, and how you charge it when it's dead (do you have to take the batteries out and slot them into a charger every time?)
I had the video all done, then figured out a better (easier) way to fit them in, so I have re-record it. its on my todo list. you dont have to take the batteries out - i converted one of my single battery chargers to do these LiON packs.
Can’t wait for the update. I’ve got at least 20 to do. I have a lot of the shorter packs.
@@timgoihl any update?
anyone know about a project that did replace the NiCad with Sub C NiMh, so they fit perfectly in the package and of course deliver more juice...
I especially like the voltage meter to see how full the pack is
So....WHERE is the conversion video?????????
I finally made up one of these using the bms in your link. Mine must have been right at 20 amp. If I pulled trigger on drill quickly it just died, had to feather it then it ran, am ordering a 30 amp bms, looks bigger, hope it'll fit in
I think the BMS current rating is okay. Did you get the one from seller #1? I believe the problem is this Chinese board use the wrong capacitors on the board. I was having the same problem and put my oscilloscope on it and the startup spike of current caused it to trip. Only because it was only getting 20 milliseconds instead of the 200 milliseconds that the application note for the chip specifies. I changed the capacitor and then it worked. But that's too much to ask for people that are going to build this so I'm looking for a alternate board source.
Hi friend
I am always attentive to your excellent videos.
A question, what dimensions in mm has the BMS 5S board, I see that you used a 25 A board, is it enough? or better 100A
I have some recycled 18650 laptop batteries of 2500mAp. I'm going to use them, how will they work?
Greetings from Venezuela
The board is 48x32mm. the board says it is 25A but it is really 66A. The over-current is programmed by the 2 parallel R003 (0.003ohm) current sense resistors you can see in the pictures here www.ebay.com/itm/5S-20A-Balance-Li-ion-Lithium-18650-Battery-Packs-BMS-Circuit-Protection-Board/192751663071. 0.1v/0.0015ohm = 66A, so that is plenty. your laptop batteries will *not* work. They have 2500 mAhrs, but low ***Max Continuous Discharge Current(A)***. The INR18650-25R have 25A. See the spec sheet I linked. Another video tried to do this with the NCR18650B 3400 mA hr battery... it would spin, but had no power b/c the battery could not deliver the current (the internal resistance of the battery is too high causing very big voltage loss) See specs www.batteryspace.com/prod-specs/NCR18650B.pdf. They have high mAh rating but low discharge current of about 5A continous. So good for some applications, but not power tools.
@@timgoihl Thank you and which 18650 battery do you recommend for the drill?
@@joseluisprieto3438 Click 'Show more' below the video for links. INR18650-25R same as dewalt uses! $3.80 each.
www.batteryjunction.com/samsung-inr18650-25r.html
Dewalt do not make it easy for their clients...try Matika, all the batts to all their tools are common and interchangeable. Great idea.
Don't be foolish. Those batteries are from the NiCd/NiMh era, a time not a single manufacturer made batteries that were interchangeable on all their machines. That's only something from the last 5, maybe 10 years.
Hello greetings from Venezuela.
How many batteries is the max that goes into the Case to double the amperage while maintaining 18-20 V?
You need 5 batteries to get 18.5v=3.7*5 nominal, and 5 18650s will fit in the case. I also got 5 20700s to fit. It you have a 3D printer you could make a case that would hold 5S2P like the 20-volt Max 5AH packs. But my 2.5AH pack really holds up well. These are 3500 milliamp hour 30 amp batteries that will fit
www.18650batterystore.com/20700-p/sanyo-ncr2070c.htm.
@@timgoihl Can I charge the new batteries (Lithium) with a Dewalt Dc9310 charger? or do I have to put a charging pin and use for example a laptop charger (Notebook)?
@@joseluisprieto3438 The Dewalt charger is for their XRP lithium which uses LiFE batteries. Also the LiOn battery pack has a little magnet in it that the charger senses to put it into Lithium mode. That Lithium compatible charger does Nicads and other voltages and it does weird things with the current and voltage to figure out the pack it is charging. It also might shut off before my pack is all balanced. You can't charge a LiON over 4.25V or bad things happen - we dont know that the CV part of the DeWalt charger is no more than 21.25V. All we need is a very simple Constant Current 3A or so, Constant Voltage 21.5V with the BMS. The BMS protection/balance board protects the pack and stops when its balanced. I bought a 24VDC 3-4A power brick and a simple CC-CV board from eBay to charge the pack. I added the Links to those items in the video notes. I will fit the cccv board inside my basic DeWal nicad charger box.
My question is that the DW9310 Charger indicates that it charges the NiCd, but it also charges the XRP Lithium Ion batteries
Can I use the charger with the 5 18650 batteries and a BMS 5S? or is it not advisable?
Cheers
Excuse my questions, I don't know much about electronics.
@@joseluisprieto3438 you cannot use the 9310.
Good idea but charger won't work
Bms 5s balance or enhance version you use?
Any update on this?
Hi, I have DC9096 battery tools, I have a doubt can I use DE9095 xrp battery plz? Thanks
Hi, I tried this the other day,
I made a 5s battery pack with bms, and put it into my old 18v Dewalt drill. The drill is starting to smell like it is smoking, so I was wondering if the voltage is to high? Do you know what a fully charged Nihm battery voltage is? The 5s battery I tried actually only had 19.8V on it, so not much higher than 18V. I hope you can help me.. :)
check this batteryuniversity.com/learn/article/charging_nickel_based_batteries. Charged NiCd voltage is 1.3 to 1.4 x15 cells is 19.5 to 21v full charge. LiON is 4.2x5cells = 21V, but the LiON drops very rapidly to like 3.7-3.8v (3.8x5-19v then holds there for a long time. So its the same voltage. Is this happening under load? The LiOn's may be able to provide more current, and heat (smoke) is I^2R (current squared times winding resistance) so more current means more heat... you may have to watch that if you are really pushing your tools...
How do u charge them
Where is part 2 ??
I’m doing the same, I have some 30A continuous drain cells from battery hookup on the way. Theoretically, the charge voltage is the same for the 15s nicd pack and the 5s li ion pack. I want to use the original charger, have you tested this, or do I have to use my dc to dc converter?
I sorta answered this in another comment... You must use a 5S BMS protection board to properly charge and protect each individual cell. The DeWalt charger cant do that. The Dewalt charger is for their XRP lithium which uses LiFE batteries. Also the LiOn pack has a little magnet in it that the charger senses to put it into Lithium mode. That Lithium compatible charger does Nicads and other voltages and it does weird things with the current and voltage to figure out the pack it is charging. It also might shut off before my pack is all balanced. You can't charge a LiON over 4.25V or bad things happen - we dont know that the CV part of the DeWalt charger is no more than 21.25V. All we need is a very simple Constant Current 3A or so, Constant Voltage 21.5V with the BMS. The BMS protection/balance board protects the pack and stops when its balanced. I bought a 24VDC 3-4A power brick and a simple CC-CV board from eBay to charge the pack. Links will follow in the build video.
I will be modifying one of my XRP single chargers with the new CCCV board so I can just drop my new battery into it and let it charge.
how do you charge it?
Can I use this adapter to use a new Li-Ion 14v battery to power a 14v Ni-Cad tool? If is just an adapter a new battery to a old tool will work, right?
I'm not quite sure what you're asking. Can you use 20 volts on a 14 4 volt tool? Seems like a little bit much voltage. The full charge on the 14.4 volt tool is 1.4v*12cells=16.8v. lithium cells are 4.2 volts full charge so four cells should do it 4*4.2=16.8. so if you can fit the batteries into the old case and find a 4S BMS board it should work fine.
@@timgoihl I said: "new Li-Ion 14v battery to power a 14v Ni-Cad tool"
so is: can I use a dewalt li-ion 14,4v battery with a rail type connection, with this adapter to power a tool that uses a 14,4v Ni-Cad pistol type connection?
We don't have 14.4V slide type batteries in the USA. I've never seen them before.
If you're asking if the DCA1820 adapter would work on 14.4 volt tools, I don't know. I only owned 18 volt XRP tools and now 20 volt max tools. I'm guessing not because I'm assuming that they made the pistol 14v incompatible with the 18-volt pistol otherwise people would be over voltaging their tools all the time.
They now make an aftermarket 18v dewalt 6.0ah lithium battery that can use a factory charger! 😮
An xrp battery? Do you have the part number or a link you could share?
@@timgoihl there’s a bunch of sellers on Amazon..
@@reginaldbowls7180 If you're not going to provide a link, your comment is not credible. If you are talking about something like this a.co/d/8mqpUge, its a fake battery. You cant fit 6AH of tool grade (High Amp Hr) LiON batteries in the XRP case. The seller is XNJTG a Chinese company. Just b/c amazon sells it doesnt mean its real. You have to look at the seller.
@@timgoihl that’s weird I wrote a whole other comment..
How to you charge the battery ?
How do you charge the pack?
Good question! I modified one of my chargers with a simple 3A constant current constant voltage converter. There will be a video for that also
@@timgoihl De Walt sells a XRP compatible li-ion charger
Yes, but the Dewalt charger is for their XRP lithium which uses LiFE batteries. Also that pack has a little magnet in it that the charger senses to put it into Lithium mode. That Lithium compatible charger does Nicads and other voltages and it does weird things with the current and voltage to figure out the pack it is charging. It also might shut off before my pack is all balanced. All we need is a very simple Constant Current 3A or so, Constant Voltage 21.1V. The BMS protection/balance board protects the pack and stops when its balanced.
Are using the 18v charger for 20 volt upgrade?
We want to be very nice to our new lithium batteries, so we use a CCCV, constant current, constant voltage charger. I have one linked in the video description below. I tested it just using alligator clips to the battery terminals, but my plan is to put that charger board inside one of my old 18 volt chargers to make it quick and easy.
stopping back later.
The one I got was from Ebay, 5S 30A 18v 21v ........, seller name jgvknymwp Says it has balance, $6.90 + 1.50 s&h + tax