On Wednesday, February 25, 2015 at 5:56:19 PM UTC-8, Darryl Ramm wrote:
There is just much better battery technology available. Especially LiFePO2 batteries.

I am also aware of a glider NiMh battery with serious thermal damage caused by improper charging/insufficient manufacturer warnings, etc.

Darryl,

Did you mean LiFePO4?

Likewise, familiar with the glider that had issues with NiMH batteries. Besides the NiMH relatively high self-discharge rate, when using multiple batteries is keeping things balanced. This is exacerbated if the batteries are not all in the same location, as differing lengths and thus resistance of interconnect wire is enough to pretty much insure things will not go well, with some cells overcharging, deep discharging, or even reversing cell polarity.

bumper