Makita 18-Volt LXT Lithium-Ion 4.0 Ah Battery and Rapid Optimum Charger Starter Pack2, plus two 5Ah. $177.56 . YMMV

add the two 4Ah starter pack and two 5Ah battery into cart, and see the final price.
https://www.homedepot.com/p/Makit…/310377140
https://www.homedepot.com/p/Makita-18-Volt-LXT-Lithium-Ion-High-Capacity-Battery-Pack-5-0Ah-with-LED-Charge-Level-Indicator-2-Pack-BL1850B-2/206609332?
for those who like to play cancel or return, can get 2 5Ah for $72.57.