Batteries for LED calcs, revisited

[burkhard]

(07-01-2018 10:06 PM)mdunn Wrote:  Hey, do whatever makes you happy. The LiPo here is one half to one third the cost of the NiMH packs. And all the "high capacity" (≥ 2 AH) NiMH AA cells I've had experience with have had very short lifespans, whether you use'em or not.

Yup, just trying to figure out your angle... I haven't run through a ton of cycles on my NiMH packs yet, but so far they have been OK. I'll definitely check the lifespan, thing though.

The cost claim is hard for me to figure out, but I think you earlier listed a Canadian eBay on the LiPo, so maybe that's where you are and shipping across the border for NiMH factors in.

LiPo do give me the willies, though, especially if they are being charged unattended. They "count on" some reasonably sophisticated pack management controls. I don't have your original thread link handy, but I'd personally avoid open-loop charging. Too many of them catch fire without a lot of warning.