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Stay unplugged longer with ThinkPad batteries, which provide up to one-third more capacity than the standard system battery. This high capacity battery has an extended area on the back edge and fits in the standard ThinkPad system battery slot. Its compatible design allows it to be in the system when the system is connected to the ThinkPad Advanced Dock, Advanced Mini-Dock, and Essential Port Replicator. Battery life (and recharge time) varies based on many factors including screen brightness, applications, features, power management, battery conditioning, and other customer preferences.
Note: This battery is not compatible with T61, R61 and R61i models with a 14.1" widescreen display. See compatibility note for model summary.