The BLACK+DECKER LBX1540 40-Volt MAX Lithium Ion Battery, 1.5 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-percent lighter then NiCad batteries and 34-percent smaller, with no Memory Effect.
The LBX1540 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.