Quote:
|
Originally Posted by BrianG
I guess I should have phrased the question: How do you balance them? Or what do you use?
I'm still not totally sold on those A123 cells yet. Even though they have high discharge rates, the runtime isn't great unless you parallel them. And then, the voltage isn't quite as high normal lipos. I guess I'm still waiting for the Holy Grail of batteries to arrive...
|
I justify the lower capacity/higher weight of the A123 cells when compared to LiPo by comparing them to NiMh - more power, more runtime, higher voltage, faster charging, etc. for less weight. I'm pretty much converting everything over to A123 cells - Rustler is getting a new, A123-specific chassis, Revo will have batt mounts made to hold them, and the Savage will also get batt mounts. What really draws me to these cells is that they physically can't puff up - I had to send my Maxamps 4s3p pack of 2100HV cells back for a replacement when one of the parallel groups puffed up for no apparent reason (with the use of a Dimension Engineering CellShield LVC and a balancer on every charge). My only LiPo-powered cars will be my 18t (still need a Mamba and LiPo pack), Dark Impact (have 2 Lipo packs for it), and my X-Terminator (getting the replacement Maxamps pack).