Fossil Carlyle Gen 5 battery replacement

Hi @ghineaadrian

To ensure that you're getting a battery that will physically fit inside the watch, perhaps it may be better to open the watch and check for the specifications or model number of the original battery.

If there's no model or type number then sometimes there may be a 6 digit "dimensions" number along with the voltage (V) and current (mAH) ratings printed on the battery.

You can also check if there are only 2 wires connected to the battery or more as some have a temperature sensor lead as well.

If there is a 6 digit dimensions number then the convention is that the 1st two digits are the height (or depth) of the battery in millimetres (mm) with a decimal point between the two digits, that is not shown, the 2nd two digits are the width of the battery in mm and the last two digits are the length of the battery in mm.

As an example only to show what I mean and I don't know if this could be for your watch or not, this battery has the following dimensions specifications on it - 313734

313734 = 3.1mm H x 37mm W x 34mm L,

If there is a 6 digit number on the original battery you could try searching for (insert 6 digit number shown on original battery), (insert voltage shown on battery i.e. 3.7V or 3.8V) LiPo battery and try to find one that has the same dimensions and voltage rating but with a greater mAH rating than the original.

Here's a video that might help with regards to opening the watch.