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18V Battery and Charger Combo for Ryobi 18-Volt Cordless Tools Battery and P118B Charger, Cell9102 18V Battery Capacity Output 5.0Ah - - Amazon.com
Ryobi 18-Volt Cordless Reciprocating Saw Kit with a 4Ah Battery and Charger (No Retail Packaging, Bulk Packaged) - - Amazon.com
Amazon.com: Badaptor MAK-RYO Makita to Ryobi Battery Adapter : Tools & Home Improvement
Amazon.com: generic1 Ryobi ONE+ 18V Lithium-Ion 4.0 Ah Battery (2-Pack) and Charger Kit, 1 (PSK006) : Tools & Home Improvement
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Amazon.com: DM18RL Battery Adapter for Dewalt to Ryobi Battery Adapter, Convert Dewalt 20V Llithium Battery to Ryobi 18V P107 P108 Battery with 5V 2.1A MAX USB Charge : Tools & Home Improvement