GDD Instrumentation MPP-EM2S Plus Instruction Manual page 11

4.4 Recharging AA batteries
Simply put the AA batteries in the charger and plug it in the wall using the 120 V plug located at the
back of the charger or another plug adapter. The AA batteries charger is made to be used at 50/60Hz
– 120/240V.
4.5 Recharging Li-ion batteries
The Li-ion battery pack of the Archer2 field computer must be recharged with the charger provided
with the MPP set. This battery pack lasts approximately 1000 to 3000 charging cycles before it needs
to be replaced. Use the screw driver provided with the MPP set to remove the battery cap if you need
to replace de battery.
Instrumentation GDD Inc. 2018-01-16 10