SDDBL50 Lithium-Ion Rechargeable Ultra High Capacity Battery (3.7v 1900mAh) - Replacement for Sanyo DBL-50 Replacement battery for the Sanyo DBL-50, Lithium-Ion (Li-ion) 3.7V (1900mAh) 100% compatible with your OEM battery - 3 year warranty. Made with high quality Japanese cells. Synergy Digital is a Registered Trademark