Makita MAK-BL4040 XGT 40V Max Bl4040 (4.0Ah) Li-Ion Battery

New battery cell designed specifically for prolonged heavy duty professional applications Improved impact resistance versus 18V lithium-ion batteries due to shock absorbing internal structure Waterproof, triple layer structure and terminal walls protect against cell failure due to water or dust Digital communication between battery, power tool and charger 4 LED battery charge level indicator lights displays approximate remaining battery power Optimum charging system regulates thermal, voltage and current during charging cycle to ensure battery cannot be overcharged or overheated during the charging process Use with Makita 40V MAX XGT Li-Ion Battery Charger DC40RA 100% charge in just 45 minutes! 80% charge in just 31 minutes!