Makita BL1850B-2 18V LXT Lithium-Ion 5.0Ah Battery (2-Pack) for $159.00 shipped. Here is a screenshot for reference. It features an integrated L.E.D. battery charge level indicator allows user to monitor battery charge. Note that comparing to one-pack at $129.00 each, this is a saving of $99 as getting two of these Makita batteries would normally add up to $258.