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The BOTKK 2.5Ah is an aftermarket lithium-ion pack built to replace Bauer 20V batteries in handheld cordless tools. It adds capacity over the stock 1.5Ah and 2Ah packs, so tools run longer between charges, and it carries a battery management system that monitors each cell. It charges on original Bauer 20V chargers and most third-party ones. Buyers rate it well overall, though a few report packs that arrived weak or failed early.
In stockSold by BOTKKReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
Owners mostly report good runtime and a solid fit in Bauer 20V tools, with the pack holding charge through repeated DIY use. A minority describe packs that arrived underperforming or stopped holding charge early.
This is a 2.5Ah lithium-ion replacement battery for Bauer 20V battery packs, including the 1.5Ah and 2Ah versions. It is made for handheld cordless power tools used for DIY and household jobs.
The pack has a Battery Management System (BMS) that monitors each cell independently to support performance and service life. It has no memory effect, so it can be recharged at any time without losing capacity. It works with original OEM and third-party Bauer 20V chargers.












