2 Packs Upgraded 8.0Ah OP4040 Replacement for Ryobi 40V Battery OP4026 OP4050 OP40201 OP40261 OP40601, High Capacity Compatible with 40 volt Ryobi Lithium Cordless Power Tools

【Replacement OEM# OP4040】: Battery Type: Lithium-ion | Voltage: 40V | Capacity: 8000mAh | Removable & Rechargeable | 2PCS-High capacity battery for extended run time. Please note: let the battery cool down before recharge. 【Replace Original 40V battery part#】: Perfect replace for RYOBI 40V battery OP4050A OP4015 OP4026 OP40201 OP40261 OP4030 OP40301 OP4040 OP40401 OP4050 OP40501 OP40601 and etc. 【Safety & Reliable】: The lithium-ion battery is CE, FCC, ROHS certified, built-in over-charge, over-discharge, over-voltage, over-current, and over-heating protections, safety for the battery and your RYOBI 40-Volt collection.