24V Battery Replacement for Greenworks: 24 Volt Lithium Lawn Mower Battery 29842 29852 LB24A020 for Greenworks 24V Trimmer Weed Blower - 6.0Ah 2 Pack

What It Is

This is a 24V lithium-ion battery replacement (6.0Ah, two-pack) for Greenworks 24V cordless outdoor power equipment—specifically designed for mowers (models 29842, 29852), trimmers, and weed blowers. It powers tools that require the LB24A020 battery platform.

Fitment & Compatibility

• Check your tool’s voltage: Only for 24V Greenworks tools—not 40V, 60V, or 80V systems.
• Model numbers: Confirmed fit for Greenworks 29842, 29852, and any tool using LB24A020 battery (e.g., 24V trimmer, blower, chainsaw).
• Physical size: Measures approximately 5.5 x 3 x 4.5 inches per battery. Verify your battery compartment can accept these dimensions (some older Greenworks 24V tools have slightly different battery shapes).
• OEM vs. aftermarket: This is a Greenworks-branded OEM replacement, not a third-party. No compatibility issues with Greenworks 24V chargers (model 29972 or similar).
• What to check before buying: Look at your current battery’s model number (printed on the label). If it’s LB24A020 or ends in 29842/29852, this is a direct swap. Also ensure your charger supports lithium-ion (most Greenworks 24V chargers do).

Key Things to Know

• Quality: Greenworks OEM—same cells and build as original. No performance drop vs. factory battery.
• Installation: Drop-in replacement. No tools needed; slide into battery slot until it clicks.
• Common gotcha: The 6.0Ah capacity is higher than some stock 2.0Ah or 4.0Ah packs—longer runtime, but slightly heavier. May affect balance on handheld tools like trimmers.
• Charging time: Expect ~60-90 minutes per battery with a standard Greenworks 24V charger.
• Warranty: Comes with Greenworks’ 2-year limited warranty—register online for coverage.

Should You Buy It

If you own a Greenworks 24V mower, trimmer, or blower and need fresh batteries with extended runtime, this two-pack is a solid value at $74.99. Ideal for medium to large yards (up to 1/3 acre) where a single 2.0Ah pack won’t finish the job. Skip if your tools are 40V or higher, or if you only need one battery.