Question about Tomtom GO 720 GPS Receiver

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Fairly new unit with poor battey life

Is battery field replaceble? (Yes, I am a electronics tech...Clinical Engineering) Thanks

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Yes it is possible. This is one way how you can do it:
-First of all, locate the battery and notice the battery number. You must order a battery with this number. -Remove the front screen surround -- just gently prying does the trick. -Undo four T8 screws holding internal works to outside body. -Remove internal works from body. There is a cover/clip for the bottom panel (where the car mount connects) that just falls out once the insides come out -- pay attention to how it fits in, so that it can be replaced on reassembly. -At the base you will see silver foil covering , the foil needs to be peeled back in places, but you should left as much of it on as possible . -Peel back the foil around the speaker, and remove the two T8 screws, being careful not to disconnect the speaker -- it only needs to be moved aside. -Continue peeling back the foil down to the circuit board, but leave the board itself covered. You will need to manipulate, but not remove, the thin metal "cage" that is shown removed and behind the unit. -On the still-covered circuit board there are four T6 screws that need to be removed; one on either edge at the bottom, and one on either side of the car mount in the middle top. -With the foil loosened and the screws removed, manipulate the metal "cage" to expose the two T6 screws securing the black plastic battery holder. Be very careful not to accidentally disconnect any of the wires/cables. -Remove the battery holder, unclip the old battery, replace with new one, and reassemble. -The unit should be able to power up as soon as the new battery is connected, so I tested it a few times as I reassembled, just to be sure I hadn't jostled anything loose as I went along.
Please keep in mind though that replacing the battery will void the warranty.

Posted on Oct 03, 2009


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