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11-26-16 | 06:55 PM

#61

cyccommute

Mad bike riding scientist

Joined: Nov 2004

Posts: 29,174

Likes: 6,243

From: Denver, CO

Bikes: Some silver ones, a red one, a black and orange one, and a few titanium ones

Quote:

Originally Posted by kingston

Are there any of these magicshine clones that run on AA's and/or last for more than 3 hours?

Not that I've seen. They usually run on 18650 Li-ion cells in a 2S2P (two batteries in serial and two pairs of serial batteries in parallel). The voltage of this configuration is 7.2V to 8.2V which would require 5 AA batteries for the same voltage. The output of a AA alkaline battery is about 2 Ah while that of an 18650 Li-ion cell is about 4.8 Ah. You'd need at least 10 and probably closer to 15 AA alkaline batteries to have the same run time as the Li-ion battery pack.

You can also get 26650 battery packs which have about twice the capacity of the 18650 packs. They are about double the size, however. I can get between 5 and 6 hours at full output on the 26650 packs.

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Dreamin' of Bemidji Down the Mississippi (in part)
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