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This is a 20V lithium-ion starter kit from Harbor Freight's Hercules line: one 5 Ah battery plus a matching charger. The 5 Ah pack is the larger of the Hercules 20V batteries, so it runs longer than the compact 2.5 Ah pack on saws, drills and grinders. It fits every tool in the Hercules 20V lineup, so it works as a spare or a first battery for a bare tool. Owners like the capacity for the money; the trade-off is weight and the single-brand lock-in.
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Lowest price we've seen: $92.00 on Nov 9 at eBay. Tracked across 2 stores since Nov 9.
Owners of Hercules 20V tools generally rate the 5 Ah pack well for runtime and value, and treat it as the battery to buy for saws and grinders. Complaints center on weight and on the lack of a fuel gauge.
