LE NO VO 01AV430 01AV431 11.52V 4950mAh 57Wh / 01AV429 01AV494 11.58V 4920mAh 57Wh 4-Cell battery For ThinkPad X1 Carbon Gen 5 (launch at 2017 year),X1 Carbon Gen 6 (launch at 2018 year) laptops

[ Battery Information ]:4-Cell Lithium Ion Best OEM Quality , Voltage &Capacity :11.52V 4950mAh 57Wh and 11.58V 4920mAh 57Wh . Their Voltage are a little different , In fact ,they are same . Different factory have different error range . 01AV431 and 01AV430 are from Simpo factory . 01AV429 and 01AV494 are from Nexcon factory .
[ Warranty ]: Full Refund within 60 days , Replacement within 12 months
[ Certified Security ]:100% Brand New from Manufacturer. Overcharge and Overdischarge Circuit Protection;Over-temperature and Short-circuit Protection; Up to 500 recharge cycles over the life of the battery
Note: Usually we dont know the exact battery model that we need to buy, So Please open the back cover of the laptop to confirm the original battery model number. If the new battery is not recognized during the initial installation, please reinstall and check if the interface is fully connected. Discharge the new battery to 10-20% (not 0%), then charge and cycle 3-4 times to wake up the new battery
[ Package Contents ]:1 pcs Brand New OEM Battery