Battery Type: Lithium-ion, Voltage: 18V, Capacity: 3600mAh,replacement for Ryobi 18V battery series cordless power tools. Compatibility: Replacement for ryobi battery 18v P102, P103, P104, P105, P107, P108, P109, P190 and Compatible with Ryobi Battery cordless tools High Quality: Lithium batteries provide more power than other types of batteries for the same volume and weight. They have no memory effect and can be recharged at any time without affecting their capacity. LED Indicator: This battery is replacement for ryobi 18v battery and provides an LED display light, which can easily check the battery power usage and charge the battery in time. Customer Service: Our battery is Compatible with ryobi Battery, please rest assured to buy it. We will provide 30 days refund and 24 hours customer service, If you have any questions, please contact us. 2Pack 18V 3.6Ah Lithium Ion Battery Replacement for Ryobi 18V Battery P102 Compatible with Ryobi Battery 18V P103 P104 P105 P107 P108 P109 BPL18151 BPL1820