Hitachi electric tool charger 10.8V/12V working principle
Hitachi sales in the U.S. and Europe, in order to cater to the market mainstream logo, there was a time when the 10.8V battery marked 12V Peak (peak 12V).
Because Hitachi has mature technology in lithium battery technology, so Hitachi's lithium-ion batteries with overload protection, control technology unique overheating protection and current protection, the battery core is independent monitoring.
Your 10.8V/12V charger is a lithium battery charger.