Milwaukee one M18 battery XC5.0 with rapid charger combo price drop to $79 at Home Depot.
I bought at two stores, one with yellow price tag at $79 and one with full retail price tag. Both stores sell for $79. The charger alone retail for $79.
The SKU 1003-386-301 is no longer online.
Currently HD have two batteries with one charger at $169. Buying two of the single battery combo is cheaper and you have two chargers.
Link is for reference only. You get the price at the store.