Makita recently announced the launch of two higher capacity Lithium-Ion battery packs, the 2.0 Ah BL1820 and the 4.0 Ah BL1840. With their more energy dense cells, these new packs will store 33% than the company’s existing 1.5 Ah and 3.0 Ah batteries.

As with the company’s earlier packs, these are said to charge much faster than the competition’s, making it less likely the pack on the tool is depleted before the one on the charger is charged. According to Makita, their 2.0 Ah pack can be fully charged in 25 minutes and their 4.0 Ah pack in 40 minutes—versus 40 minutes and 90 minutes for some competing 2.0 and 4.0 Ah packs. Part of a smart-charging system, circuitry in the packs allows the Rapid Optimal Charger (the standard Makita charger—sold separately) to extend the life of the pack by monitoring current, voltage, and temperature during charging. The same circuitry communicates with the tool to prevent overloading, over-discharging, or overheating during use.

The company currently offers 80+ tools that accept slide-style packs; these new ones are backwards compatible and will fit all18V LXT and 18V Compact cordless tools (the white ones) that carry the star symbol. The BL1820 is available now in compact kits; the BL1840 will come out this month in select tool kits and in September as an accessory.

Web price BL1820 (2.0 Ah): $89
Price BL1840 (4.0 Ah): $109
Country of origin: China