HART’s 4-Port Charger is the perfect tool for the DIYer that has everything HART. Charger can keep 4 HART 20V Lithium-Ion batteries charged for as long as the charger is plugged in. Integrated mounting hooks allow for mounting in in home or garage. Charger sequentially charges up to 2 HART 20V batteries, so you’re always ready for whatever job comes up. LED indicators let you know which batteries are charged and which are still charging. This 4-port charger charges a 20V 2.0Ah battery in under 1 hour. Works with ALL HART 20V batteries regardless of Ah. Bundle also includes 20V 2.0Ah Battery 2-Pack. Both 2.0Ah batteries are compact and lightweight, featuring lithium-ion power for fade-free power for longer-lasting performance. Our 20V 2.0Ah battery has 1.25X longer runtime*.