BTI 0C52863-BTI 10.8V 56WHR LI-ION BATTERY 0C52863, 45N1148, 45N1158, 0C52864, 45N1149, 57+, 45N1145, 45N1151, 45N1147, 45N1153 THINKPAD T4750P, W541, L440, T540, L540, T540P, T440P, W540

With 5200 mAh capacity, the battery delivers a long lasting charge to your notebook 5200 mAh battery capacity for dependable, faster charging to ensure maximum convenience and usability Proprietary Battery Size battery size for maximum productivity with added dependability Delivers 10.8 V DC to your compatible notebook, ensuring that your device is ready to use when needed Can be used multiple times, hence saving your money Takes lesser time to charge, compared to others