The AGPTEK SLW3D4-US Solar Deck Light Battery will solve your battery problems or provide you with a spare battery. The AGPTEK SLW3D4-US Solar Deck Light Battery comes with a 30-day money back guarantee and a 1-year free replacement warranty. Once we have received your new order for the AGPTEK SLW3D4-US Solar Deck Light Battery, it will be processed within 24 hours or on the next business day with Free Shipping via USPS First Class Mail.