Klarus 14500UR75 USB-rechargeable battery

Overclocker

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interesting. a tiny bit shorter than a standard AA (way shorter than a protected Sanyo UR14500P like the Evva shown)

yet it clocks in at just above the advertised capacity. 776mAh @ 0.5A discharge current. despite the smaller-sized li-ion cell (electronics take up quite a bit of space)
 

kreisl

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More importantly it has a protruding plus terminal
 

bltkmt

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I love these, and their 16340 brothers. Great for travel as you need not bring a full charger, only a cable.
 

kpatz

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Jan 6, 2018
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Interesting that they manage 750+ mAh despite the smaller cell due to the electronics.

Based on the pictures it can be put into a charger even though it has USB charging circuitry built in? Or was that just for a discharge test?
 

Gauss163

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Interesting that they manage 750+ mAh despite the smaller cell due to the electronics.

Thanks to the higher energy density of Li-ion.

Based on the pictures it can be put into a charger even though it has USB charging circuitry built in? Or was that just for a discharge test?

I have no experience with the Klarus, but usually you can only discharge from the main terminals. Charging must be done using the integrated charger powered by the usb port.

Beware that batteries like this supply constant voltage so device fuel gauges and low battery warnings won't work (but some models do drop the voltage just before they are empty to try to enable low-battery warnings).
 
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