Remove the device clip. It is located at the bottom of the case.
Detach the battery housing. Gently pry around the edges of the battery housing until it pops out.
Detach the battery connector. Gently pry the battery connector up with your fingernail or a plastic tool.
Remove the battery. Pull the battery out by the white tab.
Insert a new battery. Ensure that the battery is inserted correctly, with the positive terminal facing up.
Reconnect the battery connector. Press the battery connector down until it locks.
Reattach the battery housing. Snap the battery housing back into place.
Reattach the device clip.
Here are some additional tips for replacing the battery on a Navman S90i:
Be careful not to damage the battery connector when prying it up.
Ensure the new battery is the same type and size as the original battery.
If you are having difficulty removing the battery housing, you can try using a suction cup.
If you are still having difficulty replacing the battery, you can contact Navman customer support for assistance.
