TENMOER 2-Pack 3.0Ah Battery Compatible with Dewalt 20V Max Battery with DCB112 Charger Starter Kit Fast Charging

What It Is

This is a 2-pack of TENMOER 3.0Ah lithium-ion batteries designed to replace or supplement Dewalt 20V Max batteries. They work with any Dewalt 20V Max tool, including lawn mowers, trimmers, blowers, and chainsaws, and include compatibility with the DCB112 charger starter kit for fast charging.

Fitment & Compatibility

Before buying, verify your Dewalt 20V Max tool or charger uses the standard slide-on battery interface (common on most Dewalt 20V cordless outdoor equipment). These batteries are not compatible with Dewalt 20V FlexVolt or 60V tools, nor with older Dewalt 18V NiCad systems. The 3.0Ah capacity is lower than OEM 5.0Ah or 6.0Ah packs, so check your mower’s amp-hour requirement—smaller mowers (under 20-inch deck) typically work fine, but larger mowers may drain this battery faster. Measure the battery compartment: these are slightly shorter and lighter than OEM Dewalt packs, so they fit most but check for any tight clearance in enclosed battery bays. The DCB112 charger is included in the “starter kit” variant; if you already have a Dewalt charger, this pack works with it, but the DCB112 is a standard 1.25A charger, not a fast charger despite the listing.

Key Things to Know

• Quality: Aftermarket brand; may have slightly lower runtime and build quality than genuine Dewalt batteries. Some users report shorter lifespan after 6–12 months of heavy use.
• Installation: No installation required—slide onto tool or charger until it clicks. Ensure contacts are clean before first use.
• Gotchas: The “fast charging” claim is misleading; the DCB112 charges at 1.25A, taking ~2.5 hours for a full charge. Also, these batteries may not work with Dewalt’s newer high-discharge tools (e.g., 60V mowers) due to lower current output.
• Runtime: 3.0Ah provides roughly 40–60 minutes of mowing on a small trimmer or 20–30 minutes on a 20-inch mower, depending on load and grass density.

Should You Buy It

Buy this if you need affordable backup batteries for light-duty Dewalt 20V lawn tools (trimmers, blowers, small mowers) and already have a Dewalt charger—but don’t expect OEM performance or longevity. Skip it for heavy-use mowing or high-discharge tools; invest in genuine Dewalt 5.0Ah+ packs instead.