Universal charger

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Joined: 03/10/2011 - 13:59
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Universal charger

Anyone know of any chargers That will charge a 3v CR123 and also be able to charge 3.7v 14500s and 18650s. If it would charge AA NiMh that would be a plus.

Thanks for sharing your wisdom. Dave

Edited by: Dave on 05/20/2011 - 15:46
JohnnyMac's picture
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Joined: 04/12/2011 - 16:03
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Location: Eastern PA

I have an UltraFire WF-139 charger than does it all and I really like it. The one problem you may have is it only charges 3.7v Li-Ions:


It charges all 3.7v batteries in just about every common size. Charges one or two at a time, each on their own circuit with auto shutoff at 4.2v. You can charge a 18650 and a 14500 at the same time or whatever combo you like. The 123/16340 slots are not wired up but it is a simple soldering job to tie the contacts in with the other circuits by a making a few connections on the circuit board. It is very simple to do and is a common mod with this charger. You could also just leave it as is and use spacers for RCR123/16340 batts.  I enabled the slots on mine because I can't leave well enough alone and that's just how I roll. LOL! I HIGHLY recommend you get it.

To enable the rcr123 slots just pop off the back and do the following: 


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Does anyone know what chemistry the "3v" lithium rechargables are?


The WF-188 has so far been very reliable at charging my LiFeP04 18650's but obviously their nominal voltage is 3.2v.


I just wonder if the 3v batteries are really 3.2v...