Bosch Cordless Saw Advanced Cut (2.5 Ah Battery 18 Volt System, 18 In)(the plug charger is EU, if used in USA needs a plug adapter for the charger) - Amazon.com
Bosch BC430 Lithium-Ion 30-Minute Charger For Bosch 10.8-Volt and 12-Volt Batteries - Cordless Tool Battery Chargers - Amazon.com