2Pack 7500mAh 40V (300Wh) Lithium Replacement Battery for Ryobi OP4026 / OP40261 — Fits OP4050 OP4040 OP40401 OP40201 OP40601, Compatible with OP401 Charger

High-capacity lithium replacement designed for Ryobi 40V systems. Specifications: Battery Type: Lithium; Capacity: 7.5Ah (7500mAh); Voltage: 40V; Wattage: 300Wh. Professional replacement compatible with Ryobi 40V battery models OP4050A, OP4040, OP4030, OP4026A, OP40201 and ZROP4026. Also fits original electronic devices RY40200, RY40403 and RY40204, and is compatible with chargers OP401 and ZROP401.