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 GXS18V-12N14 18V Starter Kit with (1) CORE18V® 8 Ah High Power Battery and (1) Fast Battery Charger - Amazon.com