Home Depot [homedepot.com]
has M18 FUEL 18-Volt Lithium-Ion Brushless Cordless 4-1/2 in./5 in. Grinder and Starter Kit w/(1) 5.0 Ah Battery and Charger
for $159. Select free store pickup where available.
1x M18 FUEL 4-1/2 in. / 5 in. grinder paddle switch, no-lock (2880-20)
1x M18 RedLithium XC5.0 Ah battery (48-11-1850)
1x M18 and M12 charger (48-59-1812)