The Gigalumi ‎6916 Solar Deck Light Battery will solve your battery problems or provide you with a spare battery. The Gigalumi 6916 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 Gigalumi ‎6916 Solar Deck Light Batteries, it will be processed within 24 hours or on the next business day with Free Shipping via USPS First Class Mail.