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BTI 88Wh 4 cell 5B11M90037 compatible battery for LENOVO 21K90017US 21 - Image 1
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BTI 88Wh 4 cell 5B11M90037 compatible battery for LENOVO 21K90017US 21

BTI

Compare today's prices on the "BTI 88Wh 4 cell 5B11M90037 compatible battery for LENOVO 21K90017US 21".

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Last Updated: 08/03/2026
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Product Description

Compare today's prices on the "BTI 88Wh 4 cell 5B11M90037 compatible battery for LENOVO 21K90017US 21".

BTI 88Wh 4 cell 5B11M90037 compatible battery for LENOVO 21K90017US 21

Keep your Lenovo ThinkPad P16S running at full power with this high-capacity 88Wh replacement battery from BTI. Designed specifically for the P16S Gen 1 and Gen 2 models, it delivers dependable, long-lasting performance whether you are working on complex projects, attending back-to-back meetings, or travelling. With this compatible battery, you can restore your laptop's original runtime and avoid the frustration of unexpected shutdowns.

- 88Wh, 4-cell lithium-ion battery for extended usage between charges

- Compatible with Lenovo ThinkPad P16S Gen 1 (21BT, 21BU, 21CK, 21CL) and Gen 2 models

- Replaces original part number 5B11M90037 and fits 21K90017US, 21K90019US

- Built to BTI's quality standards with overcharge, over-discharge, and short-circuit protection

- Easy to install – simply swap with your old battery (no tools required for most models)

- Lead-free and RoHS compliant for safer, more eco-friendly operation

Revive your ThinkPad's mobility and productivity with this reliable, cost-effective battery.

GTIN: 886734896825

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