I have an SP35 SF22Bxxxxx. Last I've seen it, I put it in my jacket pocket. When I tried to turn it on, it doesn't come on.
The rechargeable 21700 reads 0.0v. It won't take any charge in the light, or with external power supply.
I followed the video below and the cell was revived. After the revival, it still had plenty of charge left at 3.8v. I am thinking it accidentally got turned on in the pocket and the light got hot enough to heat soak the battery to the point of popping the CID. The placement of button on the SP35 is such that its really easy to accidentally activate in the pocket too.
Isn't it design flaw?
to have a combination of a
1.) switch that is so easy to be accidentally activated into high mode
2.) remains powered on and allows itself to get hot enough to the point of popping the safety switch on battery.
The rechargeable 21700 reads 0.0v. It won't take any charge in the light, or with external power supply.
I followed the video below and the cell was revived. After the revival, it still had plenty of charge left at 3.8v. I am thinking it accidentally got turned on in the pocket and the light got hot enough to heat soak the battery to the point of popping the CID. The placement of button on the SP35 is such that its really easy to accidentally activate in the pocket too.
Isn't it design flaw?
to have a combination of a
1.) switch that is so easy to be accidentally activated into high mode
2.) remains powered on and allows itself to get hot enough to the point of popping the safety switch on battery.
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