· [Rechargeable Battery Details] Premium 7.5Ah Capacity Battery Replacement for RYOBI 40V Battieries: Lithium-ion; Voltage: 40Volt; Capacity:7500mAh/7.5Ah 300Wh; Compatible with Ryobi 40V OP40601 Tools and Charger.· [Wide Compatible with Ryobi Battery and Tools] Replacement for Ryobi 40V battery is compatible with Ryobi battery 40V OP4040 OP40401 OP4050 OP4060A OP40601.Compatible with Ryobi Original electronic device RY40200 RY40403 RY40204 and Chargers OP401 ZROP401.· [High Capacity and Quality] Upgrade 7500mAh Replacement for Ryobi Battery 40V make your power tool longer run time and easy transporting.Built-in high quality Cells to lengthen battery life.No memory effect,certified by CE and can be charged or discharged as needed without loss of capacity.· [LED Display Power Indicator] We can charge level of the OP40601 40v battery replacement with these four LED indicator light.You can see how much fuel the lawn mower has charged up with the LED panel on the side,keeping you aware of when you need to recharge.· [Buy Worry Free] Satisfaction Service we proudly stand behind all of our 40v batteries products,if for any reason you are not satisfied with your purchase,please contact us because our number one goal is customer satisfaction and we are committed to making it right for you.