ETS-Lindgren 3301C Active Monopole - Manual (Page 42)

Charging the Batteries
Never attempt to recharge a non-rechargeable
battery.
For maximum battery life, fully charge the batteries before placing the
Model 3301C into service for the first time. Failing to fully charge the
batteries may result in reduced battery life and cause premature
battery failure.
1. Move the power switch on the Model 3301C to OFF/CHG; if the power
switch is set to ON, the batteries will not charge.
2. Connect the AC adapter to the electrical mains, and then plug the
adapter into CHARGER on the Model 3301C.
For the steps to replace the batteries, see Battery Replacement on page 13.
42 | Operation