Remember when you did not depend on cords and gasoline to run your tools? Power your life with a WEN 40-Volt Max Lithium-Ion 4 Ah Rechargeable Battery. Compatible with the WEN 40-Volt Quick Charger (model 40400)， this battery is designed to fit the entire WEN 40-Volt line， including the WEN Leaf Blower and the WEN Chainsaw. Lithium-ion cells create a fade-free power supply that provides 4 amp hours worth of steady and consistent operation. An onboard battery meter informs users when their power supply is running low and in need of a charge. Replace your current battery or add an extra for double the work time， keeping 1-on the charger and 1 in the machine. Forget the hassles of extension cords and gasoline. Its time to simplify your life with a WEN 40-Volt Max Lithium-Ion 4 Ah Rechargeable Battery. Remember when your yard work was easier than ever before? Remember WEN.

• Double the run time of your 40-Volt tool with an extra battery
• lithium ion cells provide fade-free performance for your tools
• 4 amp hours worth of battery power
• Onboard battery meter informs users the status of the current charge
• Compatible with the WEN 40-Volt max lithium-ion series
• Maintains charge for extended periods of storage and nonuse
• Easy installation with an onboard quick-release button

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The 5-year warranty ensures high quality

💰 Money Back Guarantee: If the product is damaged or defective, we will replace it or refund your money within 60 days of normal use.

📩 24/7 Customer Service: Our customer support team is online 24/7 to answer all your questions.

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🪐 We work directly with manufacturers around the world to ensure the best quality products in the world. We also have a dedicated quality control department to help us deliver on our promises!

🥇 Our prices are competitive from start to finish. We guarantee that we will spend money on product production and quality control.

Free Exchanges

If you're not satisfied with your purchase for any reason, our return policy allows you to send back returns-eligible merchandise within 30 days of the date you received the package for an exchange. Simply use the Q Return Label within 30 days of receipt to return your item for a free replacement of the same item in a different color or size. If your request for an exchange results in any additional merchandise or shipping costs, and you paid by credit card, your credit card will be charged for those additional costs. Payment methods other than a credit card may result in an order cancellation & a refund may be issued. If the requested exchange is no longer available, including items on the waitlist and advance order, we will issue a refund and not deduct the Q Return Label fee.

🌈 Good motivation

After every order, we give you 10% of the profit to Save the Children.

Save the Children started working in this area in 1932 to support the most isolated and neglected rural children in Europe.

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