Makita has officially announced their new 18V LXT 4.0Ah Li-ion battery pack, BL1840. It provides up to 33% more runtime compared to their 3.0Ah BL1830 batteries, and fully recharges in 40 minutes.
There is no word yet as to whether Makita’s compact 18V Li-ion batteries or 12V Max batteries will be upgraded as well.
Pricing information is not yet available.
ETA: Summer 2014