Makita BL1850B-2 (196681-7) 18V (5.0 Ah) Li-Ion Battery Twin Pack
by MAKITA
5.0 Ah battery offers maximum run time for prolonged, heavy-duty applications
New battery fuel gauge indicates approximate remaining battery power
New battery protection system provides over-discharge, temperature and Current Protection for enhanced performance, battery cycle life and overall battery life (when used with STAR marked tool)
Optimum charging system utilizes three Active Controls (Current, Voltage and Temperature) to maximize battery life
Built-in memory Chip communicates with charger CPU to optimize the charging process based on the unique conditions of each battery