Replacing The Battery - Onset HOBO U30 NRC User Manual

Replacing the Battery

If the battery is completely dead and recharging it is not an option, then
follow these steps to replace the battery:
1. Disconnect the AC adapter or solar panel.
2. Disconnect the battery.
3. Unplug all sensors, the USB cable, relay, and grounding wire.
4. Unscrew the antenna cable with a 5/16 inch wrench.
5. Use a Phillips-head screwdriver to remove the four screws at the
corners of the clear, inner case.
6. Remove the clear, inner case.
7. Use a Phillips-head screwdriver to remove the two screws that
secure the battery.
8. Note the orientation of the battery and then remove it.
9. Install the new battery with the same orientation and reverse the
steps to reassemble.
10. Dispose of the old battery per local regulations.
HOBO U30 Station (NRC) User's Guide 43 44 HOBO U30 Station (NRC) User's Guide