I have a nav3550 gps and the battery won't hold a charge for very long. these numbers are on the battery " pl-563048 " " 6h0401646 " " pa637601ab " . can any one help me get a new battery? my e-mail is email@example.com
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Usually an old (or older) battery will no longer hold a charge ... or will only hold a small charge (that will let you run the GPS for only a few minutes).
Often, when the TomTom device is always connected to the charger (in a vehicle), where it charges every time the car is turned on, whether the TomTom is being used or not, the battery gets charged (partially or fully) often enough to use up the "maximum number of charge" cycles for the battery. Hence, it will no longer charge properly or hold a strong charge.
Like for all lithium batteries, it's better if your device is not always connected and being charged (whether you are or are not using it). The battery will last longer and it will still be able to hold a stronger charge.
The GPS device runs off the battery ... so, you need to charge the battery (fully, or enough to power the GPS) before you start using it again. For clarity, if the battery is not charged, the GPS will not run when plugged into a power source.
It appears that the battery will not hold a (good) charge anymore. If it is still under warranty, contact TomTom to address that problem. They may replace the unit for you. It is not unusual for (rechargeable) batteries to loose it's capability to hold a good charge if it is plugged in (to a power source) all the time, even while it is not in use.
Since you have tried charging the device using the usb and the power cord. It is quite clear to know that the problem is from the device connection port. It is bad and need to be replaced.
But you need to Try to test the battery in other devices then try to charge it there to see if it will hold a charge. If the battery holds a charge there, then it means the battery is okay and if it does not charge. Then it means the problem is from the battery. It need to be replaced if so.
Then test the charger/ power cord on another device if it is not bad, then you test the usb cable also. After running these test. You will be clear to know if it is the connection port. Then replace the connection port once confirmed to be the problem.
Hope this helped.
Your battery most likely has cell dammage, this prevents the battery from holding any acceptable charge. You can take the device to a batteries plus and they might be able to refresh the battery to hold an charge, if under a year, send back to the manufacturer. Since you did not provide a model number there are different ways to update the GPS, here is the company support site.