lipos will "puff" when they are overdischarged, or, overcharged..... never let them run down lower than 3.70v per cell and you'll be alright.
as far as charging, they should be charged at 1C or lower for optimum results, and NEVER let them charge higher than 4.20v per cell. if you wanna charge then as quick as possible, just remember this..... if you can adjust the charge amperage, and if you have, say, a 3S 2200 mAh pack, well the safe highest amprage to charge at would be 2.2 amps...... if you have a 3s 1100 mAh, the amps would be 1.1A..... see where im going with this?
and i suggest a charger with a balancer built in, and one that has an LCD so you can see the volts for each cell. the cheap esky, or e-flight balancer's work, but you get what you pay for.....
a good deal is the Turnigy Accucel 6 from hobbycity, or the FMA Direct Cellpro Revolution 4S......
ive seen many a puffed lipo, and have been using lipo's for years, ive never seen an actual lipo fire, but they can happen....
top of the line, is the ThunderPower 1010c with ThunderPower 210V balancer, i have one of these for the 8S 3700 mAh 30C packs i run in my Trex 600E helicopter. ;-)
|