RAVPower® Notebook Laptop Battery HP Compaq 6720s 6730s 6735s 6820s 615 6700 550 610 HP 451085-141 451085-661 451086-001 451086-121 451086-621 451545-361 456623-001 456864-001 456865-001 GJ655AA GJ655AA # ABH HP-6520 H (Electronics)
I got this battery and immediately installed in the laptop. The battery was dead! The battery is not detected by the laptop! I tried to get in touch but have not even answered me with ZBT trading. Therefore, I advise a buying this battery pack.