B095J4QKWF Synergy Digital Accessory Kit, Compatible with Pentax K-3 Mark III DSLR Digital Camera Includes: SDDLi90 Battery, KSD256GB Memory Card

Replacement battery for the Pentax DL-I90, Lithium-Ion (Li-ion) 7.4V (1900mAh)
100% compatible with your OEM battery – 3 year warranty.
Made with high quality Japanese cells.