Celest
Newly Enlightened
So on flashlight forums in general, it seems that protected cells are considered to be the best option. And yeah, they are best for series configs or if you absolutely need to run your light down until your battery is empty or your have a light that is prone to shorting (the horror stories from my lurking on other forums are quite scary). But personally, I have some concerns about protected cells, which I only use in devices that absolutely require them either for fitting or if I deem it electrically necessary. In my opinion, it is an extra risk to have a little circuit always attached to the cell. At any moment, something can fail short circuit, overheat or whatever even in storage. Someone in a post on BLF brought it up (post #9 in I prefer that when I remove my cell from my light, it has nothing electrically connected to it unless it is in the light or charger. Unlike consumer devices with their (usually) reliable protection circuitry, you don't know what you're getting unless you buy super expensive high end flashlight brand batteries (Olight, etc...) that can often cost more than any of my lights ever did. Not to mention I've seen complaints of parasitic drain killing protected cells. I recently got a Gearlight S1200 which explicitly warns in the (rather useless to experienced users like me) manual to use protected LG, Samsung, etc... batteries if you use 18650s instead of AAs. I have not had any issues safety or overdischarge wise yet (it gets noticeably dim when the cell's resting/no-load voltage is 3.0-3.1v, and unusably dim by the time it gets down to 2.7v). I use an unprotected Samsung INR18650-30Q (one of my all time favorite cells for hobby use of any kind, closely seconded by the 25R) just fine and after a while got a feel for how charged the battery is based on brightness after playing with my meter a bit. Short of the flashlight itself shorting out (extremely unlikely), the lack of protection (which can equally fail short if something goes wrong) is a total non issue unless you are an average joe (although in that case just use AAs so you don't gotta worry about Li-ion safety). Thoughts?
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Bill
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Bill
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