Battery typeLi-ion. Color: Black. Voltage: 7.5V. Capacity: 30Wh Replace Part NumberAA-PBZN2TP Compatible Models905S3G Series,910S3G Series,915S3G Series SecurityOvercharge and Discharge Circuit Protection, All products are CE Certified for safety,Strict guidelines for compatibility, and standards compliance for environment safety. 100% New from Manufacturer, About 500 recharge cycles over the life of the battery. BUY WITH CONFIDENCE12 months warranty 24 x 7 email support.