Build your own A123 RC receiver pack
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- Опубліковано 13 вер 2024
- This video shows you how to build a 2-cell A123 receiver pack for your RC model airplanes.
A123 batteries are the very best option for modern 2.4GHz RC systems because they provide plenty of voltage headroom and astonishing current-handling capabilities. They're also far safer than lipos, have no "memory" and won't be destroyed if you accidentally run them completely flat.
Using this video as a guide, you can build your own super-good A123 receiver pack for around US$20.
I use these 1100mAH packs in my glow-powered models up to 1.20 cubic inches (20cc) and also any gliders larger than a DLG.
For bigger IC models, you can use the 2300mAH A123 cells and the same techniques. A 2S 2300mAH A123 pack can be used in planes as large as a 55cc gaser with two 2300mAH packs (fed through two switch harnesses) capable of powering even a 40% model.
You can discuss this project in the comments on this video or in the RCModelReviews forums at:
www.rcmodelrevi...
Here are the sources of the materials used in this video:
A123 cells (wait on the page for the best price pop-up):
www.hobbyking.c...
Heat-shrink (large and small):
www.radicalrc.c...
Balance leads:
www.rctimer.com...
or www.himodel.com - Наука та технологія
Just thought I would say thank you for all the enjoyable videos over the years. I didn't realize until now just how many smiles I have derived from what you do. Thank you kind sir, Please keep doing what you are doing.
Oh and by the way, it really doesnt matter how you pronounce solder, as an American, I'm used to hearing things pronounced differently even by people in my own country. I do enjoy hearing people from other countries with different accents speak. Again, I enjoy watching and learning alot from your videos very much. As someone who's mechanicaly inclined but new to the RC world, it's very good to have someone knowledgable such as yourself helping out. Thank you sir!
Finally, someone that knows there is an 'L' in solder. it is NOT silent America!!!!
I had always tried to avoid your video because I didn't want to get confused with different pronunciations , until I found a video of a linguistics professor who explains how Michigan changed A to E. Now I can watch your video in peace, knowing the quirks.
I always like watching videos on making battery packs!
A123 packs are great, very durable. I lost a 3s pack while carrying my packs in to the house one Fall. It fell under a bush. I didn't find it again until the following Spring and it still worked great even after being out in the rain for 7 months.
Thanks for the video Bruce!, I just made a 1100mAh Ignition and a 2300mAh rx pack.
I'm really starting to embrace the DIY aspect of this hobby.
Also when with some FrSky gear based off your reviews, cheers.
And that's how I'll do in my next model. Only I'll be using a couple of 18650 batteries to power rx and vtx. What a masterclass!
I have never watched a video on batteries for half an hour, that's full credit to you matey you'd make a pencil sound interesting
So many comments asking where to get those A123 cells. Good to see who actually watched the video because Bruce said where he got his :) great video, i just subscribed.
Certainly a welcome video, just browsing thro' various sites looking for receiver packs, this A123 fits my bill, many thanks will get on and do it.
Good tips down to earth advice
made soldering easier for me thank you
Your accent is pleasantly familiar. Great video, happened to stumble across it wondering what to do for a light-weight receiver battery for a 2ch glider project I have planned.
Well done on the so(l)dering joke!
Now I feel the need to make some of these and install them in all my models. LOL. Good stuff Bruce.
Thanks for your super professional video, I know little about battery packs and followed along easily.
just dropping by on an ancient video... :)
Used your instructions and batteries work perfectly, thanks Bruce!
10 years and still relevant
I didn't know about those cells, thanks Bruce!!!
Really appreciate this channel. I've learned quite a lot here. This episode was serendipitous because I just finished a glow project and have additional A123's from my Surefire rifle lights. Thanks. Keep producing these great videos.
Great job as always Bruce. Thanks for sharing your expertise with us all!
That video was verry pleasant, I have enjoyed and learn a lot, I'm a new comer to the work of rc; and I'm in the process of making my very first rc plane. I am in Jamaica so I can't get a lot of the things to buy to videos like your is what I have to try and go by.
Good inforrmative video. Note: the batteries you used have a indentation ring around the postiive end of the battery, so if the yellow plastic wrap would to come off, the positive end is easily identified by the indentation ring .
Learn something new from you everytime . You're the best.
Thanks Mr. Bruce!! We NoObs would be lost without you! haha
As usual informative video.
Soldering:- Wires that go together should be twisted together then soldered.
Tabs with holes should have the wires going through the holes then solder the connection.
e.g. mechanical connection first then electrical connection with solder last.
Very interesting and very informative to a old dog like me. Thanks again.
There's a phrase that I like to use when soldering.
"The bigger the blob, the better the job" :D
Not true !
where did you get those long a123 cells?
Haha "Because you don't pronounce the L, why don't you pronounce the L?" that gave me a good chuckle
***** I'm from America, but I really care about my spelling, grammar, and pronunciation, if I misspell a word I feel that much dumber. So yeah, I'm from a state where they believe Y'all is a word when the correct form would be you guys I don't think you all is proper.
Yeah really, we pronounce the L in soldier, but leave out the i, and it becomes a different word. Also, y'all, you all, and all y'all refer to different sized groups. All 3 of those terms are important to us all.
Jeremiah Hill How about you take that topic to another channel where anal retentive-types live.
Mark Lee His first comment was comedic, his second was a little bit self-depracating. Dont be a #%^}. Good holidays to you.
so how now you have to strip it to charge yhe batts when its flat? how can you charge it without taking it apart.
Great job.I've been thinking of making one of this packs my self and you video will make it easier.
Wow nice soldering technique, i don't have clamps so very useful for me.
very nice I will be doing this for a DLG I am working on thank you for the idea keep up the great work!
Off topic: that pulse jet engine in the background is still bad ass! lol
Thank you very much for your videos, keep them up!
Could you make a review about the li ion 18650? Cheers
Great video. I made a 2S SP receiver pack with the help of the vide using Black and Decker A123 1100 mah cells. Hobbyking had the balance leads and heat shrink. Thanks.
Hi Bruce,
Would you still need a UBEC or do you plug the pack directly into the receiver, and why would you need a UBEC in separate battery for rx scenario? many thanks!
Solder wick is brilliant for linking cells together, save wasting wire
Great video...thank-you for the information...love your videos!
Another excellent video from Rc Model Reviews! So are these a123 batteries the same as18650 cells?
Reeeally good tutorial!!!
Keep doing such a great work.
Happy new year Bruce!!
Bruce,
Your English is fine. Keep up the good work..
Great job Bruce and we could use more video's like this mate (how to video's) always good in my book mate as we can always learn more things like this in our great hobby ;-) thumbs up.
Man fantastic video, i look forward too anything else you do
Great video! I'm going to make a 2S2P battery to power lights on my bike and they'll be charged by a small alternator connected to a bride rectifier and 5 volts regulator with a resistor.
Absolutely one great teacher. You are very well spoken in the Queens English and I love the clarity with which you give these videos. I've made packs and am amazed at how quickly you melt your solder with your iron. I never see you clean it, must clean mine after each wire. I will use more of the solder as I see how it makes much of a difference in the way that you use it. Question, If you are using digital servos how does the voltage on this pack not burn them out? Thank You very much.
At a push you can make your own balancing lead from the same 3 pin male conector you use for the discharge cable, using all 3 wires it comes with (in the case of 2 cell). Just remember which way the negative wire goes in your charger. If you need 4 pins (for a 3 cell battery), then you can use the motherboard USB or internal speaker connector from a computer case.
how cool is that..... will be making one of these
Shoe Goo is the best thing to use when gluing the cells together.
Good video very informative, thanks for taking the time
You might test it before you added the big piece of heat shrink, if a problem exists you have to cut off the heat shrink, just an idea.
I have a question, your saying, be sure to buy A123 and not LifePO4.? Sorry for the noob question cause the link to Hobbyking is invalid so isent it the same.? I see ALOT of A123 as LiFePO4, and none of the "Genuine" once that you mention, Do you have a fresh link.?
best part 0:00 - 23:39 awesome vid loved every second!
awesome Bruce thanks for posting
Bruce you're awesome! I've actually taken to pronouncing the "L" because it sounds a bit better or betta depending on where you're from. Ha Ha Seriously, sodder doesn't sound very good does it? I appreciate you taking everyone's views to heart and I love your videos! Now tell me my friend, is it possible to attach a balance lead to rechargeable Ni Cd AA battrees? I have recently purchased a TH9X and would like to balance charge the battrees in the holder that comes with the unit.
Don't mind me. Just watching old videos :-)
Great video, thank you for posting this.
have you looked at the A123 pack that I sent you? I purchased two A123 batteries with tabs welded between the two for about $5 for BOTH BATTERIES! I have had great service out of these batteries, but I am waiting to see what you think about them.
Thanks,
Bryan
yet another brilliant video
Keeps all the hippies happy 🤣🤣🤣
Hey nice instructional vid. One thought however. Have you ever played around with post-processing your longer episodes to speed up through the repetitive and tedious tasks like opening multiple packages and walking to and fro a launch site? Hows the "free channel cluster antenna testing array" coming for installation at flying fields? Lol
great work i real learn a lot thanks for you video
Hello Bruce
Is this still the go to battery nearly 10 years on ? .... and can you please check and up date the links you very kindly added to this youtube video. i am getting back into the hobby after about 10 to 15 years of not flying i have a lot to learn Bruce
all the best from Ian in England
Can the Trustfire A123 cells used in the battery mod for the Turnigy 9X be used to power a tell (Trex 450) if wired correctly? I have a bunch coming in the mail and wanted to know if I could make a flight pack(s) out of some. Thanks. BTW, I love your vids they are very informative.
nice vid ,you present very well
Well this helped me now to create a battery for my UJ376 heli using some new batteries from a laptop to create this because my current battery just died and it won’t charge up it only powers the led lights on it
nice work bruce
Excellent video Bruce! Ran across your video while researching how to build some A123 battery packs for amateur radio use. Any tips for making larger battery packs like a 4S4P? I've heard of people using a polyswitch to prevent internal shorts. Any ideas about that or how the balancer comes into play during charging? Much appreciated!
Hi Bruce.
I know this is going to be a stupid question, but If you put 2 of these A123 batteries together you will end up with a pack that is 6.6V.
Now, I know that the FR Sky RX that both you and I use can accept this, (4v-7v), but if I put it into a Park Flier and have a separate LiPo running just the motor, is the speed controller or RX going to reduce the output voltage down to 4.8V for the servos?
Awesome video as usual.
i am very interested in the DIY transmitter project. When will you be making videos.
Hi Bruce. Your vids are great. And yes I say sorder :). Where did you get that heat shrink. I got some from hobby king but it doesn't shrink that well.
seen few 2019 solder types.. experts say- use 73-27 % solder. cause makes for harder joint/and shinyer/protection kote! old timers always used lead solder 50/50 lol … just not as good! not as forgiveing either. very hard mess up a joint with 73/27
Also, balance leads on A123 or other LiFePO4 batteries is a little "redundant" as they tend to stay at a very small voltage margin until they are discharged. Balancing bases itself on there being an equal voltage between the cells, not amperage. If the voltage is the same at 50% capacity as it is at 100% capacity for example, then what is there to balance?
@pyronathanpyro LifePO4 is 3.3V so I believe A123 is the same.
Great video buddy, Thanks.
Can you tell what gauge wire you used? I usually use 22 AWG but the one you used looks a bit thicker.
great vid thankyou, is it possibe to incorporate the power lead and balance lead as one?
Bruce , would you please let us know where is the best place to get real A123 batteries , possibly with the taps connected together in diffrent combination if you choose to ? someone asked you if those a123 he bought for 5$ -2pcs are real -were they , and if so , please where to get them ?
Great Video! Ques: For a Plantronics CT14 cordless phone Rechargeable Nickel Battery 81087 2.4V with three wires r/w/black. They're tiny wires. The white one came out of the little clip. I want to solder it in place as it will not stay in. Do you have any demonstrations for making these small batteries? The space for some of these is always minimal. Thank you.
Good video
I want to use a pair of these for the Sullivan onboard glow igniter (twin cylinder) that I'm going to use. If I build them in Parallel do I still need to use a balance plug?
Where do I buy a123 life batterys now with the solder tabs because HobbyKing no longer sells them?
interesting look forward for tips
GREAT VIDEO! QUESTION.& STATEMENT....I HATE LI-PO'S!..I need to build a battery with specs of 1500mah and @ 7.4v.. what do you suggest? It is going into a MJX-45 heli using a brushless main motor with a APPROX RATING of 2650kv
Your help would greatly appreciated.
THANK YOU.
did he looked at them , cause we see no answer , and if so are they real and where to get them please ?
I just got my order of a123 batteries. How did you charge these batteries be for you made the battery pack?
I only have a 1-4 or 8 - 2.4 battery charger. Thanks, Gene
hi how many volts is each a123 batery cell thx nice vid
Can u do this for a battery pack for rc car instead of lipo how many would be needed
Vote this up if you think Bruce looks like "Captain Birdseye"!
yes... sawder. Not solder. :) Nice video Bruce
hi I love your video, could you do one for a dji phantom 1 quadcopter
So if my servos are rated for 6v, wouldn't that be to much voltage? Also how do you charge them? Do you charge them as a ni cd, ni MH?
I wish I had all of that stuff
hi what kind of reciver tranmitter to use and would i still need the battey to use the motor thanks
Bruce ! Classic vid ! And yep it’s solder it’s has an L in it. 😂 like they say aluminium all wrong too. 😂 helpful pack build vid chap. 👍
L
In America we can't pronounce the L in soldering iron. We've tried but our tongues swell up and we can't breathe.
One of those many cultural quirks. The US pronunciation of 'herbs' drops the 'h', too. Outrageous! We should probably go to war over that. Is there a historical (puritan?) link to some of the differences? Brits have no problem with the word 'titbits', but it became 'tidbits' when it sailed across to America on the Mayflower - presumably because saying 'tit' is wicked and sinful and will send you straight to Robot Hell.
Odd then that the pronunciation of 'solder' should have become 'sod' - a contraction of 'sodomy' - in America. 'Sod' is a mild swear word in Britain, similar in intensity to 'damn'. Solder, sodder... Hmmm. Perhaps there's a connection with priests and little boys.
There's no such thing as an 'arse' in the States - although, ironically, the people decided to put one in the White House.
And the less said about our different appreciation of fannies, beavers and pussies, the better. ;-)
@@EleanorPeterson What about the badreez the yanks use?
By checking these batteries first, then cycle charge them...That way you won’t be building a potential torch for your airplane..
@RCModelReviews are these batteries charged through the balance leads or through the servo/reciever style plug?
@RCModelReviews hi what kind of recive rand transmitter wouli need and would i still need the battery for the motor or what thanks
excellent video!!!