I like the idea but you can't ensure the battery supports the load and it's a matter of time before someone puts the shittiest of 18650s inside it and it explodes
Something I've seen in flashlights is voltage sag detection: if voltage drops faster than expected, power is reduced. A temperature sensor built into the handle would also help; the risk of thermal runaway starting while the battery is below 80C is very low, and for user comfort, thermal limits should be set lower than that.
Zak|1 year ago