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what i suggest that you do is to remove the battery and check all of the connections to see if any of them are loose or worn out
And also clean the contact points with some rubbing alcohol and let dry than reinsert the battery and see if it will now charge
Also you might want to check out the charger to see if it is working properly if not replace the charger
You can also take it to any tom tom dealer and have it bench tested to see if their charger will work on it or they will be able to tell you if your battery is dead and needs to be replaced ok?
Ihope that this is very helpfull for you
best regards michel
original battery ICR18650-24 sometimes marked Type VF5 or similar. Battery
Remove the front screen surround -- just gently prying does the trick. (Img 1)
Undo four T8 screws holding internal works to outside body. (Img 2)
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 (Img 5), the foil needs to be peeled back in places, but I left as much of it on as possible (unlike the images I'm referencing).
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. (Img 6)
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 in Img 11.
On the still-covered circuit board there are four T6 screws that need to be removed. These screws can be seen in Image 11 -- 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 (plainly visible in Img 11). 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. (Img 16)
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.
If the battery fried, then you will need to replace the battery, this most likely happened if the charger was a higher amperage than the unit can handle. But in reality, anything could have broken, including capacitors on the chipset itself, which would require replacing the entire chipset inside the system. I would suggest bringing it to an electronics repair shop for a second opinion, but you may need to buy another unit.
TomTom will not service tomtoms out of the warranty period. I tried them and they dont . They say / argue that there are many companies offering service . I would suggest that the battery is user replaceable with a little bit of DIY knowledge. You need the correct screwdrivers whicth are Torx type. You can buy them cheaply in sets from size T5 up to T20. First remove screen surround by pushing the windscreen mount clip underneath the tomtom , towards the screen. This will push the surrounf out enough for you to grab the bottom of it and pull it off. Next unscrew the 4 torx screws located in 4 holes around the screen. Next , extract the tomtom 'innards' by easing the assembley out of the front of the case. Next , unscrew the 2 torx screws that hold the speaker in place. Next , remove the 2 smaller torx screws UNDER the speaker. This will then allow removal of the plastic clamp that holds the cylinder shaped battery in place.NEXT , unplug the battery ( theres 3 wires go to a little plug on the circuit board ) and withdraw it through the gap left by the speaker. Fit NEW BATTERY ( available off ebay ) and reassemble in reverse order. Of course all this should be done very carefully. DO NOT RUSH. Work on a clear bench and put something soft on the bench to protect the tomtom. DO NOT force anything , it should all come apart easily. If you are unsure , inexperienced at messing with fiddly things or just plain nervous then get someone else to do it.
I too dropped my tom tom go 300. It appears the battery was disloged as it will only work if attached to another power source; AC Adapter or cigarette plug. Does anyone know how to open the case to check on the battery?
Remove the Front facia surround Undo four screws holding internal works to outside body You will need a T6 star screwdriver for this. Remove internal works from body at the base you will see silver foil covering feel over this you will find 4 T5 star screws securing this remove these and also remove speaker by two locating T8 star screws. Gently remove the electronic board keep all locating cables intact You will then see two T4 star screws holding battery holder remove these and the plastic holder .Unclip battery and disconnect from Pcb Board fit new battery and reassemble. .