GreenWorks GWGSK40B4 G-MAX 40V 4Ah Lithium-Ion Battery & 2A Charger Kit

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G40B2 4Ah battery

The GreenWorks 40 volt product range consists of powerful lithium-ion batteries that offer more power, longer runtimes, higher speeds, more efficiency and less noise.

The GreenWorks 4.0Ah rechargeable battery is specifically designed to give you ease of use while providing maximum comfort and versatility, with a range of features to help you do your gardening with smart and simple solutions in addition.

The lithium-ion battery can be fully charged in less than 60 minutes. Long enough to take a well-deserved break. Short enough to quickly get back to gardening at full power. Don't let long charging times slow you down.

The powerful G40B2 battery scores additional points with its fast charging. Within less than an hour, it is 100% recharged and ready for use so that you can get going again in no time. The battery without self-discharge tells you its charge status at a glance with four LED lights enabling you to see immediately when you can start again.

GreenWorks rechargeable lithium-ion batteries without self-discharge do not only protect the environment, but also your wallet: GreenWorks 40V batteries can be used for every 40V GreenWorks tool, whether in the workshop or in the garden. No matter which 40V tool from GreenWorks, the battery can be attached quickly and easily.

With the 40V GreenWorks battery you have a powerful partner at your side. Whether for the lawn mower, hedge trimmer or leaf blower - thanks to the powerful battery, you always have full power ahead! Enjoy efficient gardening work without tangled cables or dangerous tripping hazards.

G40C 40V 2A battery charger

The GreenWorks 40V universal charger is compatible with all GreenWorks 40V batteries.

It will charge the standard 2.0Ah battery in around an hour, and the extended 4.0Ah run time pack in under two. The charger also helps to maintain the life and quality of the battery cells, maximising the run time, life time and performance of your batteries.

Diagnostic LEDs indicate when the charging process has finished, whilst the compact design enables easy storage and mounting.

Energy Star rated for eco-friendly households.

More Information
Brand GreenWorks
Battery Sanyo G-MAX lithium-ion
Battery Voltage 40V
Battery Capacity 4Ah
Watt Hours 144Wh
Battery Charger Standard charger included
Charger Output 2A
Battery Charge Time 2Ah battery: 60 mins
4Ah battery: 120 mins
LED Display Yes
Weight 1.6kg
Assembled Dimensions 18.5cm x 23.5cm x 10cm
Warranty 2 years for domestic use
Promotional Image /g/r/greenworks-40-volt_002__17_1.jpg


GreenWorks offers world-leading cordless products for use around the home and garden.-650.batteries include the best electronics and cell technology, and the products are designed for prolonged use in all kinds of garden environments .

Clean Technology

With this modern technology you really can replace your awkward electric tools, and your dirty, smelly, loud petrol products. Cordless tools start first time every time. There is no cable to get in the way, and cordless tools are much quieter than petrol versions, but best of all there are no emissions in use.

Keep your grass trimmed with the selection of lawn mowers, including robotic lawn mowers. Clean outdoor areas with a selection of pressure washers. Take care of your hedges and trees with the GreenWorks range of chainsaws and pruners, all powered by leading lithium-ion battery technology.

Product Families

Perfect for replacing electric products in small town and family gardens.
Two 24V batteries deliver combined 48V performance.
A more powerful choice for larger gardens and a true replacement for smaller petrol-powered tools.
A real powerhouse, this range can do everything that even large petrol products can do and is great for large plots of land and the toughest tasks.

Stop wearing out your arm on a pull cord. Stop filling fuel cans. The GreenWorks lithium system of tools requires none of that - plus its charging systems have received the Environmental Protection Agency's ENERGY STAR® approval rating.

ENERGY STAR-approved battery chargers, which are held to tight efficiency guidelines determined by the Environmental Protection Agency and Department of Energy, reduce energy usage by an average of 35 per cent from conventional garden tools.Petrol-powered lawn mowers launch as much pollution into the air in one hour as a vehicle does while driving 100 miles, the EPA reports. With more than 30 million lawn mowers in the USA alone, it takes a lot of pollution to trim the nation's properties.

All GreenWorks Tools products have a zero carbon footprint. No emissions, ever. The entire GreenWorks Tools product line will never release an ounce of carbon emission into the air. Plus, this efficiency requires no sacrifice from you. GreenWorks Tools will provide all the power you need without polluting the air or forcing you to keep hauling your petrol can to the nearest station (especially in the middle of mowing). No more tune-ups or maintenance. No more emissions.


GreenWorks Tools machines and battery chargers are protected against all defects under normal domestic use for a period of three years. Batteries are covered by a two year warranty for domestic use.

GreenWorks - Life Gets Easier

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GreenWorks GWGSK40B4 G-MAX 40V 4Ah Lithium-Ion Battery & 2A Charger Kit
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