Black+Decker 40V Max 2.0 AH Lithium-Ion Battery LBX2040

The BLACK+DECKER LBX2040 40-Volt MAX Lithium Ion Battery. 2.0 Ah has been formulated for longer runtime and improved performance. These batteries will a charge for up to 500 days between uses. but will need to be recharged before use after that time. They are 25% lighter then NiCad batteries and 34% smaller. with no Memory Effect. It also features a state of charge indicator to allow you to see how much charge is left. The LBX2040 40-Volt MAX Extended Run Time lithium battery is compatible with the 40-Volt line of outdoor power equipment which includes string trimmer. hedge trimmer. sweeper vac. chain saw and other power equipment. Maximum initial battery voltage (measured without a workload) is 40 volts. Nominal is 36.? Compatible with multiple 36V and 40V MAX* outdoor tools for versatile charging. ? Lithium ion technology delivers long life with no "memory" effect. for consistent performance you can count on. ? Lightweight design lets you work in comfort.