Charging the 1.5V rechargeable AA/AAA Li-ion batteries properly

XTAR Light

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Vendor
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Apr 26, 2010
Messages
637
Location
China
Some customers asked the questions about charging 1.5V rechargeable AA/AAA Li-ion batteries. For example, could these batteries be charged on a regular battery charger, such as, VC4SL, Energizer AA/AAA charger, etc.? As for the dedicated chargers LC4/LC8, designed for xtar 1.5V Li-ion batteries with indicator, can they charge other different Li-ion or NiMH batteries smoothly?

The answer is No. To charge these 1.5V AA/AAA Li-ion batteries, it needs standard charging voltage around 5V, and keeps constant voltage charge. Not same way as a regular 3.6V Li-ion batteruy charging, or 1.5V as NIMH battery needs. Besides, you also couldn't charge AA/AAA NIMH batteries on the LC4/LC8, because it will send around 5V straight to the batteries and destroy them.

So please don't try to charge the special 1.5V Li-ion batteries with other chargers, or do mix-charging with other batteries. That would damage the batteries and chargers, even bring with other safety hazards.
 

KITROBASKIN

Flashlight Enthusiast
Joined
Mar 28, 2013
Messages
4,617
Location
New Mexico, USA
Good to remember.
I have 4 of these Li-ion 1.5V, and the dedicated charger (though my BC4 model says it can charge NiMH as well). My son is not complaining about abrupt shutdown these days; not sure why but they do last longer than NiMH and alkaline in his X-Box controller. (I have not measured precisely due to variance in controller behavior. There is a haptic feature that activates irregularly)
 

Bambuino

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Dec 9, 2022
Messages
33
Location
Hawaii
Yes this is good info, and thank you for posting. I been a AA/123 user for so long, and have little knowledge of newer batt chemistries and charger technologies.
 
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