●Battery Specifications: Voltage: 12 V; Capacity: 1500 mAh; Type: Lithium ion battery; Made with 3 high rate cells ●Compatible models: ALTOCRAFT product models: CD441 (electric drill driver), CWP146 (electric polisher), CRS106 (reciprocating saw) ●High Rate High Output Cells: Uses 18650NR-15 10C high-rate cells to output larger currents. Provides efficient work ●Full Protection for Individual Cell Monitoring: All cells are individually monitored, and fully equipped with a protective circuit board, so it can detect immediately in case of a cell abnormalities, and can be used to protect over discharge, over current, overcharging, overheating, and low voltages. Your safety is our primary concern ●Impact Resistant Construction: The entire cell is properly assembled with the case, ensuring resistance to impacts. The cells are less likely to fall out in the event of a drop, reducing the risk of failure