Diagram needed for a portable charging pack..

[fritz]

Hello ladies and gents..

I've got a 401 for which I'd like to build a custom case for. In theory it would be great if it was a case that I could charge up, and then use to independently charge the batteries.

I know similar cases exist for other models (one of which I own but currently have no attys for), and I've heard rumors that a similar design for the M401 may soon be available. But I'm impatient, and a model builder, with a background in Mechanical and Aerospace engineering.

Unfortunately, electrical engineering was never a strong point.

So, the question comes, would anyone here have an idea or know a link to a basic diagram to set up a charger that would store a charge from wall AC and then later trickle charge a Li-ion?

Any help would be appreciated

 

[Kewtsquirrel]

Here ya go:

For only $4.69 each when QTY 50+ purchased - USB Battery Case - 4 X AAA | Car Charger Accessories

Just plug your USB battery charger into it and you're good to go.

Make sure you use nimh or nicad AAAs, the AAA sized li-ion won't work.

 

[Deadmau5]

Here ya go:

For only $4.69 each when QTY 50+ purchased - USB Battery Case - 4 X AAA | Car Charger Accessories

Just plug your USB battery charger into it and you're good to go.

Make sure you use nimh or nicad AAAs, the AAA sized li-ion won't work.

this is what I got goin right now :C

I would like to make a DIY one though! ill be watching this thread

 

[fritz]

Thanks Nerf

I'll probably get two, one to use and another to open up and check out the circuitry, and see if it can be rearranged to fit in a wooden box..

Deadmau5, are you using one currently? Any idea on how many times it can completely recharge an M401 Batt?

Thanks again