METHOD TO DETECT VEHICLE BATTERY TYPE BEFORE CHARGE

A method performed by battery charger configured to charge a vehicle battery the method comprising charging the vehicle battery until a first measured voltage over the battery exceeds a first voltage threshold, halting charging for a third time period, measuring a second voltage over the battery at the end of the third time period, determining a battery type using a differential voltage, by calculating a difference of the first voltage threshold and the second voltage, and a set of predetermined conditions, wherein the predetermined conditions comprise: