How To Repair A LiPo Balance Plug

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If your lipo balance plug got chopped by a prop, here's how to repair it. Most of the time, it's easier than you think to fix a damaged LiPo balance plug. As long as the wires aren't cut, you can just replace the housing.

Here's my video about when to dispose of a LiPo:

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I receive a commission (at no extra cost to you) if you make a purchase after clicking one of the affiliate links below.

Replacement balance plug housings for 2S to 5S are here:

Replacement balance plug housings for 5S to 8S are here:

Purchase the ISDT BG-8S battery checker at:

The $9 simple checker that I have used for years is this one:

Most or all links above are affiliate links, and I will receive compensation if you use them.

[nxu]

Thanks a lot Joshua. In a world that is messed up people like you shine through.

[Matbug]

I bet you didn't know that 7 years later someone (me) would find a 6s lipo with a smashed balance plug and use your video, for the knowledge and your link to buy the kit to fix it. Thanks Josh!

[licensetodrive]

Connector repairs - good topic!

Many don't know how easy it is to remove pins from lots of plugs/sockets without damaging anything, very useful to know when making your own custom cables from existing crimped cables. Tweesers are a godsend for this stuff.

[MrWheels]

Thanks Joshua! Just fixed my 6s balance plug that had a broken edge. Your videos are worth gold to the rc community. Learned so much as a newbie! 🙌🏻

[propbender]

Well done. I like how you dont cut out all the difficulties. I know its hard to believe, but things dont always go exactly right! You have always kept it real.

[maximilianschug]

You really got a video for everything, and I am so glad I found this one. Just wrecked a battery and the balance connector on a different battery. and at least know I know only one of those two needs to be disposed off. the other can be fixed.

[jakesouthard]

Just crashed this evening and my balance plug broke, ordered a kit from your link for my 6s and will be repairing when it comes!

[dodelladrone]

Very nice video. Love the "your gonna learn something new" intro on your videos. Just wanted to touch on a couple of safety tips. When working with batteries, lower the voltage as low as possible without damaging the cells. If you short out the battery (and one day you will) a fully charged battery has a far bigger punch. Either way your gonna jump but far less dangerous.

Also, get a lipo fire retardent bag and keep the battery in the bag as best as you can while working on the leads. I've heard they burn at 1600 degrees. Never use water to put them out. Fly long, fly fun, fly safe

PS congrats on the Liftoff Sim. They did an awesome job on your home.

[mason]

Thanks JB! This morning for the first time I "booger-ed" up a new $50 battery 6S balance connector. Just ordered the GeeBat 460pcs replacement connector pack. I'm sure this will not be the only time I will need them.

[ThePaololekai]

Once again you save the day. Broke a balance connector yesterday and thought the battery was done for. Thanks for everything you do to help build the FPV community 👊🏻

[gregm]

Thanks Josh for the prompt responce to my question. I kind of knew it was not a smart thing to try. But I just didn't understand the physics of it all. Thanks again..

[joekalbrener]

You are the man. For some reason I didn’t know plug voltage orientation order. I just yesterday put a new plug on but since they were mangled I couldn’t figure out their order, I think it’s correct it checks out on a battery checker, I’m gonna check it on a multimeter now! You may have saved my house. THANKS

[dougstockford]

Thank you . The balance connector voltage meter check did the job .(Happy Battery) And you are a great asset to the rc world . Doug . from Canada

[zippycfpv]

It’s like you read my mind!!! Just broke my first balance lead yesterday!! Thanks again JB!!! 👍🏼😎

[Ryasis]

Just busted mine a few seconds ago on my RDQ 1500mah 4s pack. Thank you JB!!

[TomicaCZ]

It's not really hard to change the balance plug, but people often don't consider all the safety things.
So thanks JB to mention those :)

[KiloHertzFPV]

Good to know you can do this, I have a bad battery with a good balance connector, and a good battery with a bad balance connector.. haha. Now i will have another fully working battery!

[jeniferdiamond]

I seen a rubber band on your table, and thought that was one of your ways to hold the wire harness down, as that is what I do, and the rubber band helps in keeping the lipos from sliding on the quads.

I even 3d printed a battery holder for my planes that squeezes up against the sides of the lipos with rubber bands on them.

If the lipo is to small and I made it to be larger then most lipos I use, I just add card board, or foam board with a little shot of hot glues on the sides and wrap rubber bands around that.

It works really well as I can slide different size and weight lipos in my planes to adjust CG. So I'm not limited to much by lipo use on my planes.

The holder allows for grasping of lipos on their sides acting like disk brakes on a car in a crash. And the rubber bands act like the brake pads between the holder and lipo preventing damage to the lipo

Nothing worse then a smashed in lipo after crash and we know in the rc world crashes happen more then we admit! And we lose motors and props all the time, but when a lipo gets trashed you can loose everything if it catches fire.

In the front of the holder I also put in some foam or bubble wrap to helping to cushion in case of a crash.

That has cut my lipo replacement per year by 75%.

[vBunny]

I do not want to be a know it all.. But heck I would be lying if I said that. 3 things I noticed / what I would have done different:
1st. You say later on never to have 2 wires flapping in the breeze (as Dave would say). Though when you dislodge the 1st(black) wire .. Yellow is still lose. I would suggest putting that one in to the new plug at its correct position first.
2nd. I would recommend after depressing the tabs to always see if they aren't depressed to much and bend them into shape before inserting them into the new plug.
3rd. You do not mention that you covered the exposed/damaged wires of the balance connector with heat shrink if needed. I was itching at the start but was happy to see that it was in place in the end of the video. If people do not inspect those things a fire might as well happen even if you try to replace a broken connector.
Just my 2 cents. Love your work, just the things I noticed that could make it easier/safer.

[DragonSlayer]

had to review this yesterday, fixed three batteries! Thanks again Josh!