Hi Team,
First time poster was recommended this thread through Reddit as I'm completely stumped on this one.
Let me start off with the Crafty has served me well over 2 years with 100 hours of usage on the bad boy but lately I noticed the battery lasting less and less to the point that a full charge would die before the oven even reached its optimal temperature, about 30 seconds and then flat.
After doing some reading and having basic knowledge in electronics I decided to take it apart and swap the battery out my self.
The cell inside the device was a Samsung INR18650 35e, after not being able to find any in my country with tabs I attempted to locate the NCR18650PF with tabs which also hadn't worked out, hard enough to find the cells with out tabs even..
I choose to try and do a bypass mod using an 18650 Cell holder where I can use my normal 18650 cells to power the device. (
https://www.brightnite.com.au/products/keeppower-18650-protected-3500mah-rechargeable-battery-p1835j)
The device gets power to the point that it can blink LEDs at me but won't power on, no matter the attempts I've made I just get 1 red LED flash before switching to 7 flashing blue LEDs.
I've attempted the following in order and haven't been able to get any thing apart from the same flashing LEDs indicting low battery:
- 18650 Cell Holder with the above battery, same blue LEDs
- Lab Power supply set for 3.6V increasing to 4.1V in testing increments, same blue LEDs
- Externally charged the existing Samsung cell, measured it at 4.1V re-attached to the device and it displays the same 7 flashing blue LEDs even at 100% full cell.
- Tested the thermal fuse for capacitance and confirmed current is still able to flow through it
Any idea's and where I should look next?