[Upgrade BMS] 40V 6.0Ah Lithium Battery Replacement for GreenWorks 40V Battery 29482 BAF724 BAF725 29472 29462 2901319 BAF704 BAF705 BAF721 BAF722 Replace for GreenWorks 40V G-MAX Batteries

What It Is

This is an aftermarket 40V 6.0Ah lithium battery that replaces several GreenWorks OEM batteries (29482, BAF724, BAF725, 29472, 29462, 2901319, BAF704, BAF705, BAF721, BAF722) and works with the GreenWorks G-MAX 40V platform. It’s designed to power cordless lawn mowers, trimmers, blowers, chainsaws, and other 40V tools.

Fitment & Compatibility

• Brand & model: Only for GreenWorks 40V G-MAX tools. Not compatible with 60V, 80V, or older 24V GreenWorks lines.
• OEM replacement numbers: Check your original battery label for any of these: 29482, BAF724, BAF725, 29472, 29462, 2901319, BAF704, BAF705, BAF721, BAF722. If yours isn’t listed, measure the battery slot (approx. 6.5” x 3.5” x 4.5”) and verify the terminal layout matches.
• Charger: Works with any GreenWorks 40V charger (OEM or aftermarket), but avoid using a non-40V charger. Check your charger’s label for “40V” output.
• Physical fit: Same form factor as original G-MAX batteries – should slide into any tool or charger designed for that platform. No adapters needed.

Key Things to Know

• Capacity upgrade: 6.0Ah vs standard 4.0Ah or 2.0Ah OEM batteries means longer runtime (roughly 50% more than a 4.0Ah). Good for larger yards or heavy-draw tools like mowers.
• Build quality: Aftermarket; reports of slightly thinner plastic and shorter lifespan than OEM. Some users note reduced performance in cold weather (below 40°F).
• Installation: None – just slide in and lock. No wiring or modifications required.
• Common gotchas: Not all GreenWorks 40V tools have the same battery release button shape. If your tool has a side-release, this battery may be slightly snug. Also, the LED charge indicator may be less accurate than OEM.

Should You Buy It

Buy this if you want a budget-friendly runtime upgrade for your GreenWorks 40V G-MAX tools and you’re okay with aftermarket quality trade-offs (slightly shorter overall lifespan, occasional fitment tightness). Skip it if you need maximum reliability for daily commercial use or want a perfect OEM-quality fit – stick with genuine GreenWorks batteries in that case.