Doing a little mixing and matching (Sofirn SP31v3 and Convoy S2+/7/15).
Is it safe to charge the flat top Vapcell with the USB-C on the head of the Sofirn?
I don't intend to normally charge it that way (I have a standalone charger that works well), but just in case I would forget and just plug it in, would it be safe?
by DukeThorion
![[NLD] Belated NLD - McBob ZL SC65c HI with XHP35 HI 2700K](https://www.edctips.com/wp-content/uploads/2026/04/664zbc8abmsg1-640x515.jpg "[NLD] Belated NLD – McBob ZL SC65c HI with XHP35 HI 2700K")
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Followup question is it okay to run the S2+ head on the button-top battery that comes in the Sofirn?
Yep and yep, the body of the flashlight makes no difference in this case.
The AI tells me that they are both unprotected batteries and both lights have circuitry in the head that have “over-discharge protection” so I felt good but I’d rather ask you guys who are smarter than the computer.