This adapter can make listed lithium batteries use on Bosch slide-in 18V tools , and let you Enjoy the benefits of extended run-time of Li-Ion Batteries on your existing 18V tools.
Maximum initial battery voltage(measured without a workload) is 20volts, Nominal voltage is 18volts
Applicable Bosch 18V Li-ion battery model:
BPS18M,BPS18D,BPS18BSL,BPS18RL,BPS18GL,BPS20PO