24V Battery Replacement for Greenworks: 24 Volt 6.0Ah for Greenworks 24V Lithium ion Lawn Mower Trimmer Weed Blower Battery MAX 29842 29852 LB24A020

What It Is

This is a 24V 6.0Ah lithium-ion replacement battery for Greenworks 24V cordless outdoor tools, including lawn mowers, string trimmers, weed blowers, and other 24V platform equipment. It provides higher runtime (6.0Ah) than standard 2.0Ah or 4.0Ah packs, reducing mid-job recharges.

Fitment & Compatibility

• Voltage & platform: Only for Greenworks 24V tools—not compatible with 40V, 60V, or 80V systems.
• OEM part numbers: Directly replaces Greenworks 29842, 29852, LB24A020, and all standard 24V slide-in batteries.
• Tool fit: Fits Greenworks 24V mowers (e.g., 25312, 25322), trimmers (e.g., 21062, 21262), blowers (e.g., 24212), and other 24V slide-pack tools. Check your tool’s model number to confirm it uses the 24V slide battery.
• Physical check: Measure your old battery—this is a slide-pack (not post-style). If your original has a locking tab on top and slides into a vertical slot, it should match.
• Aftermarket note: This is an aftermarket battery, not OEM Greenworks. It may have slightly different plastic texture or LED indicator layout, but the slide rails and terminal position are identical.

Key Things to Know

• Higher capacity = longer run time: 6.0Ah gives about 50% more run time than a 4.0Ah pack, but adds a little weight. Expect ~45-60 minutes on a trimmer, ~30-40 minutes on a mower (depending on conditions).
• No installation difficulty: Slides on/off exactly like your original. No tools, no wiring—just press the release tab and slide.
• Common gotcha: Aftermarket batteries may not charge in Greenworks rapid chargers (some report slow charging only). Use the standard 24V charger that came with your tool. If your charger has a “fast” mode, test it first.
• LED indicator: Has a 4-LED charge gauge on top. Press the button to check remaining charge. Works fine, but LEDs may be slightly less bright than OEM.
• Warranty: Typically 1-2 years from seller vs. 3-4 years on OEM. Read the return policy before buying.

Should You Buy It

Buy this if you need a budget-friendly spare or replacement for your Greenworks 24V tools and want longer runtime than the stock 2.0Ah or 4.0Ah pack. It’s a solid value for light-to-moderate yard work—just confirm your tool uses the 24V slide battery and stick with your standard charger. Skip it if you need OEM reliability for heavy daily use or if your tool requires a 40V+ battery.