I’m running Samsung 50E’s instead of the Acebeam protected cell because the acbeam don’t fit in my external charger and seems to give more voltage drop. However running at high mode constantly the light gets somewhat uncomfortable hot with no breeze & the datasheet of the samsung 21700’s state max discharge temp is just 60degrees C. After 2hours of running high I took the samsung cell out & it was warm enough to me to be a concern. I have no temperature measuring.
Acebeam is no slouch. Are you sure acebeam’s batteries are protected rather than just usb charging? I don’t believe protection included with batteries measures temperature, just over discharge, over charge, and sometimes too high a discharge rate. Your battery should be fine. Worst comes to worst, you’ll just have to replace your battery slightly sooner since it might degrade faster.
It should be fine, I swap from a acebeam cell to standard cells all the time without issues if you are really worried you can pick up a IR thermometer from a hardware store for around $15-20 for peace of mind.
You may think that between 60°C and 100°C there is kind of a safety margin. It isn’t!
100°C is fine if you want to boil an egg, in water.
The (bio)chemical reactions start way before that temperature is reached.
Prolonged exposure to water with a temperature of more than 42°C can cause burnwounds.
Water of 60°C can cause 2nd degree (blisters filled with pus) burnwounds within seconds.
So if you can hold your battery after two hours without getting blisters, it’s probably not 60°C (yet).
But of course it is always better to be a bit on the safe side.
Thanks all!
I did measure with my multimeter probe & the highest I got was about 40C on the ends of the cell, think I over worried a bit. I assume the acebeam has the extra protection as its taller than all my samsung 21700 unprotected cells. And compared to the samsung 50E, the acebeam 5100 hits the blinking lights noticeable earlier in high mode.
Why/how do you think a protection circuit would lead to lower cell temps?