Chosen Solution
I have an older Model of Tomtom called ADVENTURER. It looks sImilar to the Tomtom Runner. But inside it looks different with 2 connections between front and backside of the clock. First question: Is ist possible to change the akku for this device as well? I upload two images and I hope you can explain in which steps I need to change the akku in a successful way. Maybe you can use the images and marke the steps one by one for me within the image? Second question: Where can I buy a NEW akku for this device (not old/used one)? I could not find any vendor for it. :-(
Update (07/22/2020) Thanks so much for the detailled information and the time you spent by helping me. How do I know which capacity is the right one? Does the other characters on the battery say how much A (amper) and V (voltage) it needs to be? And one last question: why must I not touch the part you marked in the image with “do not touch”. Well I won’t touch it now but it seems to be a plug (jack). This seems to be the complete akku when I watch an article I found at ebay via “Akku PP332727“:
Hi, Here’s a supplier for the battery. Just search for PP332727 to get results for suppliers that may suit you better. There are several listed but most say nil stock. 332727 refers to the dimensions of the battery i.e. 3.3mm depth x 27mm width x 27mm length. As to replacing the battery, I haven’t done a smartwatch before but I would try to gently lift the flex cable that is across the top of the battery so that it is not in the way and then prise the battery out of its position. It may be glued down so this will make it more difficult to get out, but maybe not. I don’t know When the battery is out, cut the wires, one at a time at a suitable length so that the wires from the new battery can be connected colour for colour i.e. red to red and black to black to the original wires, (soldered and each joint insulated with heatshrink tubing - example only That way the circuit board in the other half of the watch won’t have to be touched at all. Position the new battery and push the flex cables back into position and then gently get the wires to sit in without them catching on anything etc. Here’s an image that may help.
(click on image to enlarge for better viewing) As always with electronics repair, be gentle when handling and take your time. If it is not going as planned, stop and think about it and then start again. Do not persevere as you can cause more damage due to frustration. Walk away if you have to and then come back and try again. Hopefully this may be of some help.
