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A single 21V 2.0Ah lithium-ion battery pack built from 18650 cells, sold as a replacement or spare for cordless power tools that take this slide-on format. It has an LED charge indicator and a one-year warranty. The 2.0Ah capacity is on the small side next to 4.0Ah and 5.0Ah packs, so runtime per charge is shorter, but the pack is lighter. Buyers rate it well overall; the main risk is fit, since it only works in tools and chargers that accept this exact 21V mount.
Availability unknown
Lowest price we've seen: $51.74 on Nov 1 at Sears. Tracked across 1 store since Nov 1.
Buyers rate the pack around 4.5 out of 5 across roughly 90 ratings. Most are satisfied with it as a working replacement or spare, while the recurring complaint is fit in tools that use a different mount.
This is a 21V, 2.0Ah lithium-ion rechargeable battery pack from Great Choice Products. It is model ICR18650-2000 and has an LED indicator.
It comes as a single battery pack with a 1-year warranty.
