Replacement battery for 6728-70 Serie C. Specifications: 2000mAh, 4.8V, Ni-MH. Compatible with: 6728-70 Serie C. Replaces: Bartec Benke 310722, Bartec Benke 91506201, Bartec Benke 04Z14500-2201. Bartec Benke replacement battery designed for Equipment/Survey/Test Charger devices. A direct drop-in replacement for the original battery.