Keeppower/Sanyo 18500

Batteries and Chargers Rechargeable Batteries
1

Does anyone know of a source for some keeppower 18500 protected cells? The ones with the sanyo cells in them.

If not, what about a source for the sanyo18500 unprotected cells. I think I’ll get them and add my own protection circuit from fasttech. Maybe one of these:

https://www.fasttech.com/products/1244200

OR

https://www.fasttech.com/products/1225103

Does anyone know where to find the top button I can add once I’m done adding the protection circuit. Is there a guide somewhere on how to add protection circuits?

2

I only know of Efest. They have decent IMR’s. The keepoer cells must be purchased by the minimum of 100 cells.

3

I’ve found the same thing, places only sell in minimum of 100pcs. I definitely don’t need that many. The efest seems to be IMR which I don’t need and has lower capacity. I’m aiming for max capacity.

Seems my best bet is to just get some sanyo 18500 unprotected and add a protection circuit myself.

1) Does anyone have a guide for how to do this?

2) Are the protection circuits I linked to above any good?

4

Keeppower 18500 doesnt seem to use Sanyo cells.

Those were new..

Adding a protection circuit on your own is not advisable unless you have something to weld the tabs onto the cell.

Maybe you could use these:

http://www.powerwholesale.net/efest-18500-1500mah-37v-protected-liion-rechargeable-battery-with-nipple1pc-p-2816.html

5

O I didn’t see those efest ones. Do we know what type of cell is inside? or how good they are?

Also, could I just solder instead of spot welding the protection circuits?

6

You could ask Efest.. but I guess DLG. Those are fine, pretty much the same Keeppower seems to be using.

No, when trying to solder the cell will get too hot.