Welcome to TAINOVO INC from the USA with registered brand INTIFO INTIFO-branded parts ensure compatibility, reliability, quality, security in your laptop system. Specifications Condition: Brand New Model: L22C4PC0 Voltage: 15.44V Capacity: 5182mAh/80Wh Cells: 4-Cell Battery Type: Li-ion Compatibility Replacement for Part Number: L22C4PC0 SB11N45405 5B11N45395 SB11K38951 5B11K38955, L22B4PC0 SB11N45431 5B11N45420 SB11K38960 5B11K38949, L22D4PC0 SB11N45409 5B11N45428 SB11K38956 5B11K38961, L22M4PC0 SB11N45408 5B11N45419 SB11K38952 5B11K38959, L22X4PC0 SB11N45400 5B11N45439 SB11K38954 5B11K38953, L22D4PC1 SB11N45427 5B11N45404 SB11K38962 5B11K38957, L22M4PC1 SB11N45440 5B11N45394 SB11K38958 5B11K38950 Compatible with Laptop Models: Lenovo ThinkBook 16p G4 IRH (Type 21J8) Series, Lenovo ThinkBook 16p G5 IRX (Type 21N5) Series, Lenovo Legion Pro 5 16ARX8 (Type 82WM) Series, Lenovo Legion Pro 5 16IRX8 (Type 82WK) Series, Lenovo Legion Pro 5 16IRX9 (Type 83DF) Series, Lenovo Legion Pro 7 16ARX8H (Type 82WS) Series,Lenovo Legion Pro 7 16IRX8 (Type 82WR) Series, Lenovo Legion Pro 7 16IRX8H (Type 82WQ) Series,Lenovo Legion Pro 7 16IRX9H (Type 83DE) Series 3rd Generation Smart Chip for INTIFO-branded Parts 1.Better compound materials, high pressure resistance, high temperature resistance, high power, radiation resistance, stronger conductivity, faster working speed, lower working loss. 2.High energy density -- potential for higher capacity. 3.Does not require a long startup when new. Charge it regularly is enough. 4.Low maintenance -- no need for regular discharge, no memory. 5.Special batteries can provide very high current for power tools and other applications. INTIFO's goal is to exceed your expectations. Always on the go? No more worries about running out of battery power! You can power your Laptop with Lithium-ion Battery from INTIFO, these High-Performance Lithium-ion Batteries let your Laptop work seamlessly when you are on the move. Installing new battery frequently asked question solution: Q:Why my notebook can't recognize this battery or it doesn't seem to work when installing? A:1.Please check if the interface is clean to make sure it is fully connected. 2.The residual power stored in the laptop components which was preventing the battery from working properly. Please disconnect the old battery, and hold down the power button for 20 seconds, then connect the new battery. This drains the residual or flea power and the battery will be functional properly once it's reassembled. Correct ways to install a new battery: 1.Turn off your laptop and disconnect the power. 2.Disconnect the connection between the old battery and the motherboard, then unscrew screws of the old battery one by one and save them carefully. 3.Remove the old battery, then install the new battery carefully to its position, reset and tighten the removed screws, and connect the cable of the new battery. 4.Tips:Please discharge the new battery to 5% (not 0%), then charge fully and cycle 3-4 times to wake up the new battery.