HP ProBook 640 G2. HP ProBook 645 G2. HP ProBook 650 G2. HP ProBook 655 G2. 1.Li-Ion Laptop Battery 10.8V and 11.1V are in common use. 2.Li-Ion Laptop Battery 14.4V and 14.8V are in common use. Compatible Models： ( Ctrl + F for fast search ur laptop model).
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