🎄[Specification]: 12V, Battery Type: Lithium-Ion, Capacity: 4.0Ah, Cell Type: LG or SAMSUNG. 🎄[Adaptation Type]：Compatible with Ryobi 12v CB120L CB121L BPL-1220 130503001 130503005. (NOT for Ryobi CB120N) 🎄[CE, FCC, RoHS Certified] With integrated microchip prevents overcharging & lengthens battery life , working as well as the original battery, can be charged or discharged anytime as needed. 🎄[No Memory Effect] Made by high quality battery cells, eco-friendly, efficiently, stable and endurable. Low self-discharge for maximum productivity and less downtime. 🎄Charging at any time will have no effect on the battery.