Has anyone hacked a 1-battery charger to use as battery holder for hobby charger?

Hi,

I was wondering if anyone has hacked one of those 1-battery chargers (the ones with a folding, built-in AC connector) to use it as a battery holder for a hobby charger?

I have an Accucell 6, and have been using magnets, but I’m thinking it might be better if I had a cradle instead. I also have a spare one of those 1-battery chargers, so I’m thinking of using that as the cradle, since it works with different size batteries.

I opened it up (3 screws on the bottom), and am thinking if I just soldered a pair of wires to the +/- contact points in the 1-battery charger, I could then use alligator clips from the Accucell 6, without any additional mods to the 1-battery charger?

The thing that I’m unsure about is if that was all I did, would I end up with the Accucell powering the 1-battery charger’s circuitry, as well as the battery in the cradle?

Thanks,
Jim

Remove the circuit board. Also, I would build a proper cable with Accucell connector for it (no clips).

I know atbglenn has done it with good success. He used one of the cheapie 2x18650 chargers. They cost less than a good holder.

On the one I have, it looks like the negative side (the end that’s spring-loaded) extends into/through the PCB, so I think that if I remove the PCB, basically that spring-loaded-side won’t work (the whole thing might fall apart). The reason it extends through the PCB is that there’s a rotating AC plug that mates with the “ears” when the plug is flipped out.

Do you know where to get the jacks that would fit directly into the Accucell?

Jim

Butcher a different charger, one that’s easier to dismantle.
Search for XT60 plug, you should find lots of eBay sellers, possibly on HobbyKing, and other sites as well.

I'm pretty sure the Accucel just uses banana plugs, just go to radioshack and buy some.

Hi,

Thanks!

Jim

Then you should cut the traces from the circuitry on the board to the battery contacts. Best to do both contacts, but just isolating one is OK.

I have done this too, removed the circuit soldered leads on the two contacts and a bananaplug(I think 4mm) on the other ends.
I ordered the banana plugs from hobbyking. There are charging adaptercables with pre soldered bananaplugs also availabe, just cut and solder the other end to the cradle. The cradle I have used is able to charge 16340-26700

Hi,

I was hoping that I could just hook into the +/- and not have to do anything else (lazy), but that’s probably the safest thing…

Jim

I took apart the one I had, mostly out of curiousity, and I think that I won’t be able to use it.

The reason I WAS going to use it was it was a “freebie” but it also didn’t seem to work. Now that I have it apart, I know why :(….

For the + contact, they have a thin piece of metal that is soldered to the PCB and goes up into the housing. The solder pad that that’s soldered to is broken off/delaminated from the PCB, i.e., no longer connected… it’s just kind of “floating”.

So, I think I’m going to have to get a different one. Has anyone done this that can point me to / link to where to buy it? Something that can take different sized batteries, and easy to mod?

Thanks,
Jim

Jim, this looks like a good one to mod as battery holder.

Battery Holder

Make a picture I can’t imagine why this couldn’t be used…

The cradle I used was bought from cnqualitygoods for about 4$.

The cradle Jim linked is a bit short 70mm batteries will not fit.

Hi,

That one looks very similar to the one I have, including with the 9V terminals.

Jim

Yes this is really hard to mod as it is build up very cheap…I have one of these laying around and taken apart too. Not worth to mod it.
Now I know what you meant…

Check dis out

Werner, those are decent chargers. I got one from I-O for around $5. They really do charge at 650mA, unlike most that claim 500mA and do closer to 200mA.
I might have to get a couple more from FFL if they are listed over there too… just checked $6 shipped over there.

Why not just get one of these for a buck and call it a day?

https://www.fasttech.com/products/1290005

Why not just buy this?? (USA Warehouse [NJ/NY] & free shipping)

http://www.tmart.com/1Pcs-18650-Battery-12V-Clip-Holder-Box-Case-Black_p127665.html

Ahh I just seen your post, that looks good too.

NO DO NOT UNDER ANY CIRCUMSTANCES BUY ONE OF THOSE.

It has the same tab design that will do this: https://budgetlightforum.com/t/-/17705