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Use this guide to replace the battery in your TicWatch Pro 3 GPS.
For your safety, discharge the battery below 25% before disassembling your watch. This reduces the risk of fire if the battery is accidentally damaged during the repair. If your battery is swollen, take appropriate precautions.
You’ll need replacement adhesive when reassembling the device. Your device will function normally, but will lose its IP (Ingress Protection) rating.
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Before starting repairs, take your watch off the charger and power it down.
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Remove the watch band.
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Use a Torx T3 screwdriver to remove the four 4.1 mm-long screws securing the back cover.
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Apply a heated iOpener to the rear side of the watch for 5 minutes to loosen the adhesive underneath.
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Insert the flat end of a spudger into the microphone opening at the top edge of the back cover.
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Pry upwards to loosen the back cover assembly. This may require some force.
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Swing the back cover assembly open by 45 degrees to gain access to the sensor assembly cable.
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Use a spudger to disconnect the sensor assembly cable by prying the connector straight up from its socket.
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Remove the back cover assembly.
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Use a spudger to disconnect the microphone cable by prying the connector straight up from its socket.
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Use a Phillips screwdriver to remove the three 4.1 mm-long screws securing the core assembly.
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Insert the point of a spudger between the right edge of the core assembly and the watch frame.
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Pry upwards to loosen the core assembly.
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Carefully swing open the core assembly like the front cover of a book.
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Use a spudger to disconnect the screen and the digitizer cables by prying the connectors straight up from their sockets.
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Remove the core assembly.
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Use a spudger to disconnect the interconnect cable by prying the connector straight up from its socket.
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Use a pair of tweezers to remove the daughterboard.
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Insert the flat end of a spudger between the bottom edge of the battery and the midframe.
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Pry upwards to loosen the battery.
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Carefully fold the battery over to gain access to the battery cable connector.
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Use a spudger to disconnect the battery cable by prying the connector straight up from its socket.
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Remove the battery.
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Compare your new replacement part to the original part—you may need to transfer remaining components or remove adhesive backings from the new part before you install it.
To reassemble your device, follow these instructions in reverse order.
During reassembly, apply new adhesive where it's necessary after cleaning the relevant areas with isopropyl alcohol (>90%).
For optimal performance, calibrate your newly installed battery after completing this guide.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Try some basic troubleshooting, or ask our TicWatch Pro 3 answers community for help.
Compare your new replacement part to the original part—you may need to transfer remaining components or remove adhesive backings from the new part before you install it.
To reassemble your device, follow these instructions in reverse order.
During reassembly, apply new adhesive where it's necessary after cleaning the relevant areas with isopropyl alcohol (>90%).
For optimal performance, calibrate your newly installed battery after completing this guide.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Try some basic troubleshooting, or ask our TicWatch Pro 3 answers community for help.
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Where did you buy a replacement battery (if you did)? I have scoured thru aliexpress, ebay, and tried to find shattered-screen watches I could transplant from, with no luck so far. I guess I'll keep looking. My watch barely lasted a year before the battery life halved. The voltage sag is so bad the watch bootloops whenever it vibrates below 30% voltage.
I've found a listing in aliexpress for an aftermarket battery but need to de-solder the original BMS and transfer to this new battery. Here's the link to aliexpress.
I don't think it's tin welding, but most likely TIG welding.
Difficult to open it, but the less experienced could solder the battery contacts on the top without opening the old solder.
A small problem (solved) that I encountered with the battery purchased as compatible from ali-express is the greater ( >5mm)
distance (compared to the battery) of the original two poles of the battery.
You have to bend them carefully inwards to be able to weld them afterwards.
