Lenovo Original 2 Cell 7.6V 35WHr Laptop Battery for IdeaPad 520-15IKB, 520-15IKB-80YL, 520-15IKB-81BFLithium poly battery (internal) 2 cell battery Voltage: 7. 6v, Capacity: 4510 mAh Built in circuit protection for device safety 1 year nationwide warranty from LENOVO. A guided assurance on compatibility Get confirmation on chat support within seconds 15 days easy replacement BIS certified product ensures standardization and quality of product

Battery capacity: 36Wh

180-watt charger

1 year replacement warranty

Max Charge voltage

Capacity: 3650mAh

Battery capacity: 2950mWh

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43-watt charger

37amp 50/60hz

Capacity:2000mAh

No of Cell: 4

Capacity: 4410mAh