Arduino + SBS + I2C charger bq24xxx autonomous NB battery charger
Hardware: arduino bq24725 / bq24725a based charger, cutted out from dead notebook motherboard. Modified battery P-ch mosfet to connect resistive load notebook batteries for tests board with bq80xx/bq20Zxx from dead notebook battery for cells check (works as I2C analog sensors of voltage/current/temperature)
Purposes: standalone check/charge/discharge notebook battery PC based check/charge/discharge notebook battery with graphs PC based check/charge/discharge simultaneously 1-4 LION/NiMh/Acid cells with graphs/capacity/Rinternal count