This battery and charger kit includes two RB18L50 5.0Ah Lithium+ batteries and an RC18150 5.0A Super Fast Charger. The 5.0Ah battery is a powerful ONE+ battery providing you with more power, longer runtimes and better durability than previous lithium technologies. The supplied 5.0A charger is the most powerful ONE+ charger available and will charge the battery in just 60 minutes.