Upgraded 6000mAh Batteries Replacement for Kobalt 80V Battery KB2580-06 KB580-06 KB680-06 KB480-06 KB3080-06 KB280-06 Compatible with 80 Volt Kobalt Power Tools

What It Is

This is a high-capacity 6000mAh lithium-ion replacement battery for Kobalt 80V cordless lawn mowers, trimmers, blowers, and other tools. It’s designed to replace OEM Kobalt 80V batteries (models KB2580-06 through KB280-06) with extended runtime per charge—ideal for larger yards or heavy-duty jobs.

Fitment & Compatibility

Before buying, check that your tool uses the Kobalt 80V platform (not 40V or 56V). This battery is a direct replacement for OEM models KB2580-06, KB580-06, KB680-06, KB480-06, KB3080-06, and KB280-06. It fits all Kobalt 80V mowers (including 21-inch and self-propelled models), string trimmers, hedge trimmers, leaf blowers, and chainsaws. Measure the battery compartment: dimensions are approximately 5.5 x 3.5 x 4 inches—verify clearance in your tool’s battery slot. This is an aftermarket battery, not OEM, so it may not charge in all Kobalt chargers (see below). Confirm your charger model is compatible (most Kobalt 80V chargers work, but older or third-party chargers may not).

Key Things to Know

• Quality & Safety: Aftermarket batteries can vary. This unit has a high rating (4.7 stars from 29 reviews), but check for UL or CE certification marks to ensure overcharge/short-circuit protection.
• Installation: No tools needed—slide into the battery slot until it clicks. It weighs about 2.5 lbs, similar to OEM, so balance is fine.
• Common Gotchas: Some users report the battery won’t charge in Kobalt’s rapid charger (model KRC 80V-06). Stick with the standard charger. Also, the 6000mAh capacity is higher than OEM (typically 4000-5000mAh), so runtime increases by ~20-30%, but the battery may be slightly thicker—test fitment before use.
• Warranty: Aftermarket batteries often have a 1-year warranty vs. OEM’s 3-year. Confirm the seller’s return policy.

Should You Buy It

Buy this if you already own Kobalt 80V tools and want more runtime for large lawns or extended trimming sessions without buying a second OEM battery. It’s a solid budget-friendly upgrade, but skip it if you need guaranteed OEM fitment, use a rapid charger, or prefer a manufacturer warranty. For occasional use, the standard OEM battery is fine.