This Makita 191K01-6 Power Kit provides a complete power solution for your tools. It includes two 40V XGT 4.0Ah Li-ion batteries, built for durability with splashproof and dust-protected construction, and an integrated cooling system. An LED indicator displays the remaining battery capacity. The XGT system ensures optimal charging and tool performance through digital communication between the tool, battery, and charger. The kit also features a DC40RA Fast Li-ion Charger compatible with Makita XGT 40Vmax batteries and LXT batteries via an optional adapter. The charger has cooling fans for efficient, consecutive charging and an improved, clear charging status indicator. A MAKPAC Carry Case is included for convenient storage and transport. Specifications: Voltage: 40V, Amperage: 4.0Ah, Type: Li-ion.