Palm Treo 650 700w Lithium-ion Battery (1800mah) DIY Internal Battery for the Palm Treo 650 Units 3.7v - 1600mAh Li-ION Battery 3rd Party Brand New Battery Designed to the same specs as Palm Actual talk and standby times may vary depending on carrier networks, settings, signal strength, and usage. More technical specifications, please visit tangshop.com