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Alright I just got back from running the boat and the turnigy batteries got puffy agian. I just checked the voltage of each cell and the lowest was 3.805v. What is going on that was not ran low enough to puff. Also why isn't the low voltage cutoff kicking in? I have it set on high and it isn't coming on.
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20c lipo's are not up to the job , those are for cars or planes
they get probably way under that 3.6 volts under load
when you get them to the charger and read the voltage they already "restored "themselves from the lowest point (chemical proces )
you should buy something so that you can read the voltage imidiately after using them, not some time later
honestly ,i think your lipo's are dead already
and you should stop before there are significant signs of slowing down!!
these are lipo's not NiMh !Comment
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why wouldn't the 20c batteries work? Isn't the boat only pulling around 80 amps, the lipos can give 100 amps cont. each. They should be putting out plenty of power for the situation... I am picking up a voltage reader today so I will test that also. I don't think they are bad either because only one puffs and it goes down to almost normal after it cools, and they charge back up perfectly. It's like the plastic wrap expanded and stretched in the heat and didn't shrink back to the original size completely.
Thanks for the help guys, I've already learned a lot more.Comment
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Why didn't you ask this in the other thread you started about this same subject? Yes those lipos should perform better. Get rid of the traxxas connectors and get some of the new castle 6.5mm connectors.Comment
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I'm gonna keep the traxxas connectors they barely get warm if not at all. If I convert over I can't use the batteries in my cars.Comment
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I just got back from running agian. I got a voltage reader. The cells did not get below 3.8v. The lowest was 3.84v. There was no puffing and the batteries ran cooler so I had to of been over running them. The run time was clocked att 5ish min. on the stopwatch. Is that normal for these boats? Seems kind of short to me. What batteries would you guys recommend that would last longer?Comment
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Yea you want to keep it around 5 min run times when running 2 2s lipos in series for 4s. Get a pair of 4s lipos. You might have to mod the tray's a little bit to get them to fit, but you'll have 4s parallel witch will give you 10000 mah. 10min ish run times. If you go this route you need to make sure you have the boat setup perfect all the way around. Longer run times create more heat so tweak it slightly. Have a look in the proboat forum below. This stuff has all been heavily discussed.Comment
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Alright thanks, I will definitely look into the 4s setup.Comment
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