It has received maintenance charges (ever since manufacture) to keep it right around 50% charge which is optimal for storage:)
BL1840B
18V LXT Lithium‑Ion 5.0Ah Battery
Reaches full charge in 45 minutes or less
Provides up to 65% more run time per charge compared to BL1830
Integrated L.E.D. battery charge level indicator allows user to monitor battery charge
Battery delivers consistent power and run time in extreme temperatures, even in winter (-4°F/-20°C)
Compatible only with Makita 18V Lithium-Ion tools with Star Symbol™ and/or Yellow Battery Receivers
New without retail pacage. May have minor shelf wear.
Returns accepted only if product & packaging remain in exact same condition as when received!Sorry, but there will be a restocking fee to cover fees & shipping.