LENOGE 12V 2500mAh 48-11-2401 M12 Li-ion Battery Pack for Milwaukee 48-11-2420 48-11-2411 48-11-2402 Cordless Power Tools Battery Replacement (2 Packs) SpecificationBattery type: LI-ION // Capacity: 2500mAh // Cell: 3 cells //Voltage: 12V //Color: Red + Black. CompatibleCompatible with Milwaukee tools: 48-11-2401, 48-11-2402, 48-11-2440, 48-11-2411, C12 B, C12 BX and more.Use "Ctrl + F" to search the replacement models. High QualityIntegrated microchip prevents overcharging and lengthens the working life. CertifiedCE, RoHs, FCC certified and tested by manufacturer to match OEM products. Service30 days money back and 18 months warranty, and 24 hours 7 days friendly customer after-sales service. Always remove battery pack when you are assembling parts, making adjustments, cleaning, or when not being used for an extended time. If you don&#039;t plan on using the Power Tool Battery for a month or more, store it in a clean, dry, cool place away from heat and metal objects.Ni-Cd, Ni-MH and Li-ion batteries will self-discharge during storage; remember to recharge the batteries before use. Do not leave the battery dormant for long periods of time. We recommend using the battery at least once every two to three weeks.