I have a project in mind, to build an intelligent 3 stage charger from either ardruino or rasberri pi.
I plan to have a voltage and amperage monitor, and via the press of a toggle button have the charger change profiles for different batteries within my home.
- 12v lead acid battery 7.2ah (alarm battery)
- cellphone Lion battery 3.6v (cellphone)
- rechargable AAA batteries 1.2v (appliance batteries)
- even 12v Wet Cell 102ah battery (car battery)
The question is, what are the amperage ranges which I could work with to electronically switch rate of charge, current, voltage. etc. and what stops regular chargers from charging such a broad spectrum of batteries. Surely if I get a device to work in the volt and amp ranges required by each battery its just a matter of developing the code to switch modes?
I'm not really worried about form factor, just want a one size fits all charger?