After sale warrantyRest assured 30 days Money Return.12 months free replacement for Non-human factors.Email reply within 24 hours. 24 months After-sale (Note: return windows will be closed after one month. After that, you can click on seller store name on right corner, you can see "Ask a question" on the page and contact directly for any problem) SpecificationsBattery Model Name: RH03XL , Voltage: 11.4V; Capacity: 45Wh 3790mAh 3-Cell Color: Black; Type: Li-ion Battery Battery life: Up to 1000+ recharge cycles over the life of the battery.