Batteries & Chargers

2-Pack 24V 6.0Ah Replacement Battery for Kobalt 24 Volt Max KB624-03 KB524-03 KB424-03 KB224-03 KB124-03 0673802 1051230 Cordless Power Tools, Compatible with Kobalt 24V Tools & Chargers

3.7/5 (4 reviews)
$56.99
2-Pack 24V 6.0Ah Replacement Battery for Kobalt 24 Volt Max KB624-03 KB524-03 KB424-03 KB224-03 KB124-03 0673802 1051230 Cordless Power Tools, Compatible with Kobalt 24V Tools & Chargers
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What It Is

This is a 2-pack of 24V 6.0Ah lithium-ion replacement batteries designed for Kobalt 24V Max cordless lawn mowers and other outdoor power tools. Each battery delivers 6.0Ah capacity for extended runtime on mowers, trimmers, blowers, and chainsaws.

Fitment & Compatibility

  • Compatible models: KB624-03, KB524-03, KB424-03, KB224-03, KB124-03, plus part numbers 0673802 and 1051230.
  • Fits all Kobalt 24V Max tools and chargers with the standard slide-on interface. Does not work with older Kobalt 18V or 40V systems.
  • Check charger compatibility: Works with Kobalt 24V chargers (model numbers ending in -03 or similar). Not compatible with third-party or universal chargers.
  • Measure battery slot: Ensure the battery dimensions (approx. 5.5” x 3” x 2.5”) match your tool’s battery compartment—some mowers have tight clearance.
  • Aftermarket note: This is a non-OEM replacement. Verify your tool’s battery terminal orientation (positive/negative posts) matches before purchase.

Key Things to Know

  • Installation: Tool-free slide-on; press firmly until latch clicks. No modifications needed.
  • Quality concerns: 3.7/5 stars from only 4 reviews—limited user feedback. Some reports of shorter lifespan than OEM Kobalt batteries.
  • Charger compatibility: Works with Kobalt 24V rapid and standard chargers, but may not charge on older chargers with different pin layouts.
  • Storage: Store at 40-80°F; avoid full discharge to prevent cell damage. Use within 30 days of full charge for best performance.

Should You Buy It

This 2-pack is a budget-friendly option if you need spare batteries for light-to-moderate lawn work with Kobalt 24V tools. However, with only 4 reviews and no long-term reliability data, it’s a gamble for heavy users or those requiring consistent runtime. If you prioritize proven performance and warranty, stick with OEM Kobalt batteries.

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