Recent content by marin849

I have done it in the way you describe for friends and neighbours, mostly for fun and not commercial use. To provide "a service" in some kind of organized way to people you don't know is something else and is nothing I would do. It definetly requires the right paperwork and insurance etc. In...

Lithium-ion cells are not the same! There are a lot of different material combinations used for anode, cathode, and electrolyte. Also the physical package (insulator, shell) can be designed different. This gives the batteries very different properties! There is always a compromise between...

Exactly. That was the purpose. Probably possible after ripping of the heatsink completely, there was no suitable resistors accessible with the heatsink just folded up.

Since the original car charger is unusable for me due to the fact that it requires high input voltage, I opened it up hoping for some "easy" mod to change the threshold voltage. There was not... but it is a high quality construction. The circuit in the 12V-socket contains a fuse and possibly an...

By changing one of the resistors (or soldering another in parallell) we should be able to change the "low voltage cutout" voltage. In the datasheet for AP4310 there is an internal reference level of 2,5V, so we should be looking at two resistors between battery + and -, that gives about 2,5V...