Greenworks 40V 4.0Ah Lithium-Ion High-Power Battery — 22% Boost, LED Indicator & BMS

Greenworks 40V 4.0Ah High-Power Lithium-Ion Battery delivers fade-free, long-lasting power with a 22% performance boost for 75+ compatible Greenworks tools.

Lightweight and engineered for modern outdoor power equipment, this genuine Greenworks 40V 4.0Ah battery provides consistent voltage and integrated protections so your tools run reliably on a single platform. The pack includes an LED fuel indicator and an internal battery management system (BMS) to guard against overheating, short circuits, over-voltage, over-current and over-charge. It’s an upgraded option when you need more runtime and peace of mind versus generic aftermarket cells.

How much longer will this 4.0Ah battery run compared with smaller packs?

The 4.0Ah capacity stores significantly more energy than 1.5Ah or 2.0Ah packs, translating into longer uninterrupted runtime for cutting, trimming, and other tasks. The stated 22% power boost is an internal performance improvement that helps maintain higher sustained power under load.

• 4.0Ah capacity for extended runtime over lower-capacity packs
• 22% improved power delivery for stronger sustained performance
• Better suited for heavier or prolonged jobs like mulching or thick trimming

Will this battery work with my existing Greenworks tools?

This genuine Greenworks 40V battery is designed to be compatible with 75+ Greenworks tools that accept 40V packs, giving you tool-to-tool interchangeability on a single battery platform. Always check your tool’s voltage rating and connector style to confirm compatibility before purchasing.

• Fits 40V Greenworks tools across mowers, blowers, trimmers, chainsaws and more
• One-platform convenience—swap the battery between tools without adapters
• Helps reduce downtime by keeping spare batteries charged and ready

What protections and indicators are built into this battery?

Safety and usability are handled by the onboard battery management system (BMS) and the LED fuel indicator. The BMS actively monitors temperature, current and voltage to reduce risk of damage, while the LED gives immediate status so you know remaining charge at a glance.

• Multi-protection BMS: overheat, short-circuit, over-voltage, over-current, over-charge protection
• LED fuel indicator for quick charge status checks
• Fade-free lithium chemistry with no memory effect after charging

Why choose a genuine Greenworks battery over aftermarket options?

Genuine Greenworks packs include certified safety circuitry, warranty coverage and tested compatibility with Greenworks tools—features aftermarket batteries may omit. Using an official battery lowers the chance of poor performance, overheating or damage to your tools, and avoids risking your tool’s warranty.

• Includes Greenworks BMS and manufacturer warranty for reliability
• Avoids the safety and performance risks tied to unverified aftermarket cells
• Backed by product testing with Greenworks tools to ensure proper operation

Who is this for: Homeowners and pros who already use or plan to use Greenworks 40V tools and want a dependable, higher-capacity battery that extends runtime without adding undue weight. It’s ideal for anyone needing longer work sessions—landscapers, property caretakers, and weekend gardeners—who prefer the safety, warranty and interchangeability of an official Greenworks power pack.