Exact match to the OEM: Compatible with Ryobi 40 Volt lithium-ion battery OP4050A, OP4060A, OP4015, OP4026, OP40201, OP40261, OP4030, OP40301, OP4040, OP40401, OP4050, OP40501, OP40601, OP40602, OP40602vnm, etc. Biswaye Premium Battery: 40-Volt Lithium-Ion High Capacity 6.0Ah Battery for extended run time, 2X longer than the standard 3.0Ah. Features international high-quality battery cells with strong power output. Bring new life to your tools: Compatible with Ryobi 40V lithium-ion tools, including lawn mowers, trimmers, weed eaters, and blowers. Supported models: RY40200, RY40403, RY40204, RY40250, RY40430, RY40460, RY40530, RY40402A, R40402, RY40860, RY401110-Y. Also compatible with Ryobi 40V battery chargers: OP400, OP401, OP403, OP403A, ZROP401, OP400A. Intelligent Protection & Stability: On-board battery life indicator - Indicate the remaining power for user convenience and over-molded edges for impact protection. Safe & Reliable - Built-in circuit protection ensures both safety and stability. Fade-free lithium-ion power, integrated microchip prevents overcharging & lengthens battery life. This OP4050A 6000mAh 40V replacement battery complies with FCC, RoHS, and CE safety standards. Support Service: If you are not satisfied with your Biswaye battery, contact us via the "Contact Seller" option under "YOUR ORDER". We reply ASAP! Pattern Name: Biswaye 40V 6000mAh Lithium Ion Battery OP4050A Compatible with Ryobi 40-Volt Cordless Power Tools Battery. Compatible with Ryobi 40-Volt lithium-ion battery OP4050A, OP4015, OP4026, OP40201, OP40261, OP4030, OP40301, OP4040, OP40401, OP4050, OP40501, OP40601 OP40602vnm. Compatible with Ryobi 40-Volt lithium-ion tools RY40180, RY40200, RY40201A, RY40202, RY40204, RY40250, RY40400, RY40402A/ R40402, RY40403, RY40403A, RY40411, RY40430, RY40502A, RY40511, RY40530, RY40460, RY40601A, RY40860, RY401110, RY40530. Compatible with Ryobi 40-Volt lithium-ion battery chargers OP400, OP401, OP403, OP403A and ZROP401. Advantages of this 40V lithium battery: Powerful: Battery delivers 2X longer than the standard 3.0Ah. Safe & Reliable: Built-in integrated microchip prevents overcharging and self-discharge. Package Includes: 1 * Biswaye 40V 6000 mAh Lithium Ion Battery OP4050A Compatible with Ryobi 40-Volt Cordless Power Tools Battery