Converting a DX Li-On charger to charge 18650 packs

[EL34]

I set up a web page with some info on converting a dual 18650 battery charger to be able to charge multiple 18650 battery packs.

Note that the batteries must all be in parallel so you still have a 3.6 volt battery pack.

I use the multiple 18650 battery packs for my LED bike lights.

Just in case others are interested in making a cheap charger to charge packs.

More info here.
http://www.el34world.com/Misc/bike/BikesLights22.htm

 

[pe2er]

Nice mod! :twothumbs

I Notice that the positive lead of 'charger 1' crosses the high voltage PCB tracks. Probably nothing will go wrong when you do that, but...

I Did something similar:

Notice both positive leads go around the low voltage side of the PCB. Maybe I am a bit over-cautious...

 

[EL34]

Hey nice job on your conversion! I like it.

I made sure nothing but insulation crossed any other taces.

Probably would not hurt to add a small piece of heat shrink tubing near the solder points on the board for some extra insurance.

 

[Wiggle]

Nice, I did a much less refined method. Soldered leads to postive and negative connections and sent them out to my disconnectable battery pack. Only problem is that I can't use that slot for 18650s any more as the soldered connections make it too tight.

 

[EL34]

It's pretty easy to go inside and solder wires there.

That way, you can still use the slots on the front for charging individual 18650's.