opinions about batteries....

[crazyjr]

Originally Posted by zeropointbug

THat's interesting, it seems like old school lipo's are made with a more stable chemistry as far as calender life is concerned if what you guys are saying is true.

Anyone else have some old (6+ years) packs that are still perform strong? Post it here.

BTW, a good pack these days will hold a 20C discharge at ~3.7v/cell (at mid discharge) or how about 3.5V @40C discharge.

Graph from everydayflyer from RCGroups.

I have some packs from around '05 to '06, they're the only packs i have left. When i started with Lipo, I had 2 2s and 2 3s maxamp 8000mah lipos, 2 2s and 2 3s hyperion twenty 20c 3700 lipos, 2 and 1 4s 3700 flightpower 20clipo 1 4900 flightpower 20cand 1 5s 2500 flightpower 20c. Of all them, bought around the same time (within a few months), the maxamps were bloated within the year (all from sitting at storage charge, none swelled during a run) All the flightpower and hyperion are still running and running hard. I store them at full charge, sometimes 6 months at a time, and none have failed. Here's my take, If you plan to use and maintain them, you can get cheaper and be happy, If like me you tend to be a bit lazy, Invest in higher quality, They are more forgiving. This might not apply to newer packs, Mine are all over 6years old

Originally Posted by brandonwilcox

I recommend quality over cheap batteries that won't last as long. MaxAmps.com is a great option:

http://www.maxamps.com/

I don't know if i'd still be into RC, if Maxamps were the only battery available. No thanks.

[zeropointbug]

Nuf said about MaxAmps I think, they suck, plain and simple...