4.0Ah for Ryobi 18V Lithium Battery Ryobi ONE Plus P102 P103 P104 P108 RB18L40 | eBay
EveryMarket
High Capacity New 18V 6000mAh Li Ion For Ryobi Hot P108 RB18L40 Rechargeable Battery Pack Power Tool Battery Ryobi ONE+ Hot Sell From Busymic, $54.28 | DHgate.Com
EveryMarket
Exmate 18V Li-ion Battery Charger Compatible with Ryobi 18V Lithium Battery One Plus P102 P103 P104 P105 P106 P107 P108 P109 RB18L15 RB18L25 RB18L40 RB18L50 (Not for Ni-MH/Ni-Cd Battery) - Amazon.com