Replaceable Worx Wa3742 18V/20V Lithium Battery Charger, Suitable For, Wa3544. Product Details ??Fully Compatible?:100% Compatible with WORX 18V 20V lithium-ion battery charger WA3742 WA3732 WA3875 WA3881 WA3847 WA3868 WA3835 WA3764.For Worx Power Share 18V 20V lithium-ion Battery WA3520 WA3525... ??Advantages?:1.Intelligent Protection System, 2.Overheat protection: stop charging when overheat. 3.Short-circuit protection.4.Avoids over-charging, extending battery life ??Easy to Carry?: Compact design (2.5-6.0" Long, only 0.46 lbs.) is ideal for Jobsite portability and storage. ??Safe Reliable?: The battery charger is CE, FCC, ROHS certified, tested, and validated by manufacturer to match or exceed specifications of OEM products, Excellent charging function, short circuit protection. ??Support Service?: All LALAFO products come with a 30-day money-back and 1-year Warranty! Contact us: Any question click the "Ask a question" on our storefront or in "YOUR ORDER" options click the "contact seller. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.