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Q&A: lithium polymer battery charger|Does anyone know what I’m doing wrong with my LiPo batteries?

  • 06/05/2011 21:18

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Question–: Does any person know what I’m performing mistaken with my LiPo batteries?
I operate a Mamba Max Pro brushless system in my radio managed Traxxas Rustler. It has a 9000kv brushless motor. I’ve utilized a handful of lithium polymer batteries ahead of, but I do not know, what it is about them, that I am carrying out improper. A few of my batteries have ballooned and swelled during use. To my understanding, I had operated them appropriately. My brushless technique is new and undamaged. I charged the one particular 2s 7.4v LiPo from Thunder Strength with a Venom Racing 2s/3s balance charger. The charger isn’t the highest quality. It was whilst I was using the battery, that it ballooned up and misplaced a significant amount of energy. I hadn’t operated the automobile for much more than ten minutes until finally it ballooned up. Ive heard that LiPo batteries can explode or catch fire whilst charging them and using them. How can I avert this from occurring to my potential batteries so they last a lot longer? What organization do you advise for a seven.4v 5000mAh LiPo battery? And what sort of charger/balancer need to I get?


The remedy in the subsequent: (Hint: For answers, no website audit.)

Remedy by Significant
It can be challenging to say what happened in that scenario with out running tests, possibly the batteries or the charger was faulty, and in most cases it can be the charger. Are you optimistic that the charger and batteries have been suitable ?
In any circumstance , I would advise obtaining a new charger and batteries. Study the manual for the specifications of the battery for the auto. the brand won’t matter so considerably , but I’d advise that you make confident you get batteries with the right specs , and whichever brand name batteries you get, also get the same brand name charger. It just isn’t good to overcharge the batteries, however, you really should be ready to keep them on a charger for two days at a time with no problems.
Desire that will help you , Great luck.

Reply by Nathan Bartel
did you set your esc for lipo cutoff? if not yo above drained the lipo which will ruin it.
also if the C rating under 20c is utilised and to a lot energy is asked from it it will swell

Remedy by Andy Carr
I would say nathans answer is down the right line, you say you charged the lipo and it was okay.
you then employed it and it swelled inside of ten minuted i would also say you have a battery pack with a reduced ‘c’ rating than you demand, cheaper packs usually have reduced ratings or inacurate ratings.
Was the lipo very hot to touch when you took it out??, i would advise you use a multi-meter and check out the voltage of every cell wager you have drawn to several amps out. As an case in point my trex 250 helicoter with a 20c align 11.1volt lipo lasts for 8min. A low cost ebay 15c lipo 2min so you must make positive you have the correct discharge rated lipo regards Andy.

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