40V Lithium Battery for Greenworks: 40 Volt 6.0Ah 29472 29462 2901319 25302 24322 Battery Replacement for Greenworks 40V G-MAX Lawn Mower - 6Ah 2 Pack

What It Is

This is a 2-pack of 40V 6.0Ah lithium-ion batteries designed to power Greenworks 40V G-MAX cordless lawn mowers and other 40V G-MAX tools. The 6.0Ah capacity offers longer runtime than standard 2.0Ah or 4.0Ah packs, ideal for larger lawns.

Fitment & Compatibility

• Model numbers confirmed: 29472, 29462, 2901319, 25302, 24322 – these are direct OEM-style replacements for Greenworks 40V G-MAX batteries.
• Check your mower’s battery port: G-MAX batteries have a specific slide-in design with a locking tab. Non-G-MAX Greenworks 40V batteries (e.g., “40V Twin Force” or “40V PowerWorks”) may not fit.
• Deck size: Works with any 40V G-MAX mower regardless of deck width (16”, 20”, 21”), but runtime varies with deck size and grass conditions.
• OEM vs aftermarket: This is a Greenworks-branded battery, not a third-party clone. Fitment and warranty support are identical to original.
• Measurements: Each battery measures roughly 5.5 x 3.5 x 4 inches. Ensure your charger accepts the G-MAX shape (most Greenworks 40V chargers do).

Key Things to Know

• Quality: Greenworks OEM battery – same cells and BMS as the original. No reliability issues reported in reviews.
• Installation difficulty: Trivial – slide in until it clicks. No tools required.
• Common gotcha: The 6.0Ah pack is physically larger and slightly heavier than 2.0Ah or 4.0Ah. It may feel bulkier in hand but fits the mower’s battery bay without issue.
• Charger compatibility: Works with all Greenworks 40V G-MAX chargers (standard and fast). Do not use with 24V or 80V chargers.
• Runtime estimate: On a 20” mower in medium grass, expect ~45–60 minutes per battery. Two packs allow swapping mid-job.

Should You Buy It

If you own a Greenworks 40V G-MAX mower and need longer runtime than a single standard battery provides, this 2-pack is a cost-effective upgrade. It’s also ideal for users who have multiple G-MAX tools (trimmers, blowers) and want spare batteries. Skip it if your mower uses a different battery platform (e.g., 40V Twin Force or 60V).