【Replacement Battery Type】Li-ion; Voltage:11.1V; Capacity:6600mAh/7800mAh/9 Cell.

【Compatible P/N】CF-VZSU29 CF-VZSU29A CF-VZSU29AS CF-VZSU29ASU CF-VZSU29R CF-VZSU29AU CF-VZSU29U CF-VZSU65U 6140-01-540-6513.

【Compatible Models】For Panasonic Toughbook Cf-29 Cf-51 Cf-52 Series(More details at the description below).

【DG Quality】Grade A cells mitigate the risk of battery leakage and maximize output stability. Built-in circuit protection, enhances safety of usage and extends battery life.

【DG TIPS】For the initial installation, please reinstall and check the interface fully connected, discharge the battery to 5%(not to 0%) and then charge to 95%, and cycle 3-4 times.