NShi laptop battery 15.36V 5235mAh 80Wh for ThinkPad P1 Gen 3 X1 Extreme Gen 3

Compatible replacement for ThinkPad P1 Gen 3

This 80 Wh lithium-ion battery replaces OEM part numbers 5B10X19049, 5B10X19050, L19C4P71, L19M4P71, SB10X19047 and SB10X19048. It fits the ThinkPad P1 Gen 3 models 20TH and 20TJ and the X1 Extreme 3rd Gen models 20TK and 20TL. The four-cell pack delivers 15.36 V and 5235 mAh. It is intended for owners of those specific laptops who need a new power source. Buyers with other ThinkPad generations or different part numbers cannot use this unit.

Four-cell construction

The black battery housing matches the original form factor and slides into the internal compartment without adapters. Each unit is tested for correct voltage, stable current, low self-discharge and circuit protection before dispatch. CE, FCC and RoHS certifications confirm compliance with safety and environmental standards. The pack connects directly to the motherboard connector; no soldering or cable modification is required. Users who need a higher-capacity 6-cell or 9-cell design will not find that option here.

Rated 80 Wh with 15.36 V nominal output

In normal use the pack supplies the laptop's full load without excessive heat buildup. The lithium-ion chemistry keeps self-discharge low during storage. No cooling fan or active thermal management is present because the cells operate within their designed envelope. Power draw follows the laptop's own power-management profile. The 6-month replacement warranty covers defects in materials and workmanship. Customers requiring longer warranty terms or hot-swap capability should look elsewhere.