Description: High Capacity: High performance battery cells to ensure that all batteries are efficiency, reliability, safety and quality excellent. Replacement Battery: The auxiliary battery allows you to no need to worry about the lack of power when the weed eater is working, which can keep you working efficiently without waiting for charging. Premium Material: Made of premium ABS and metal material, rechargeable battery is sturdy and wear resistant. Long Battery Life: Replacement battery compatible with power tool offer a long-lasting performance, extended the battery life, longer run time than other batteries. Wide Compatibility: It is widely compatible with all kinds of home power tool, such as, electric lawn mower, weed blower, electric pruning shears, electric chain saw, and so on. Item Name: Power Tool Battery Material: ABS, Metal Features: High Performance, Rechargeable, Replacement Specifications: A: 12V 1500mAh; B: 21V 1500mAh; C: 21V 3000mAh Size Details: L: 11.5cm/4.53", W: 7.5cm/2.96", H: 5cm/1.97" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Power Tool Battery High Capacity: High performance battery cells to ensure that all batteries are efficiency, reliability, safety and quality excellent. Replacement Battery: The auxiliary battery allows you to no need to worry about the lack of power when the weed eater is working, which can keep you working efficiently without waiting for charging. Premium Material: Made of premium ABS and metal material, rechargeable battery is sturdy and wear resistant. Long Battery Life: Replacement battery compatible with power tool offer a long-lasting performance, extended the battery life, longer run time than other batteries. Wide Compatibility: It is widely compatible with all kinds of home power tool, such as, electric lawn mower, weed blower, electric pruning shears, electric chain saw, and so on.