Chapter 6, Batteries, Charging the battery packs – NavCom SF-3040 Rev.F User Manual
Page 115: Figure 52: battery pack dual-bay charger, O charging the battery packs

SF-3040 Product User Guide
– Rev. F
6-113
Chapter 6 ...................................... Batteries
The SF-3040 GNSS receiver is supplied with two
Lithium-ion rechargeable battery packs that can be
plugged into the unit simultaneously.
When operating in GPS mode, one battery can be
hot-swapped for another without interruption in
operation as long as the second battery has sufficient
charge for 5 minutes of operation.
The user must complete the
battery swap within four minutes.
Charging the Battery Packs
The SF-3040 GNSS receiver is supplied with two
Lithium-ion rechargeable battery packs. The battery
charger has two charging bays (refer to Figure 52).
Figure 52: Battery Pack Dual-Bay Charger
Follow these steps to charge the SF-3040 batteries:
1. Plug the supplied battery pack charger AC power
adapter into a wall outlet.
2. Connect the AC power adapter to the DC in-jack
on the supplied battery pack charger.