The Ryobi RC18120-115 2 Piece Pack contains:

1 x 18V 1.5Ah ONE+ Li-ion Battery with a 4 stage fuel gauge that displays the remaining power (100%, 75%, 50%, 25%).  Intellicell™ technology monitors and balances individual cells to maximise runtimes, storage life and safety.  The tough pack design features built-in impact protection for long-term durability.

1 x 18V ONE+ Li-ion Compact Charger that charges at a rate of 2.0Amp/h meaning you can charge a 2.0Ah battery in 1 hour.  Indicator lights show the status as batteries are charged and maintained.  Intelligent condition monitoring, evaluates the battery's voltage and temperature while charging ensuring long-term durability.  Ready-to-go indicator shows when the battery has reached 80% capacity.  Compatible with all ONE+ 18V Lithium-ion batteries.