Why use a protected battery
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Protected vs. Unprotected Li-Ion Batteries here's a great link from Lighthound on the subject.
jimmy1970
Flashlight Enthusiast
The D10 is an example of a basic light that can handle the higher voltage offered by the Lithium Ion 14500 cell. That is the extent of the lights' development for this type of cell.
The light does not 'self detect' the type of cell inserted into it, so treats all cells as primary non-rechargable cells i.e All cells are drained of all their power.
Doing this to a non-protected cell will result in cell damage and/or a possible explosive consequences.
Lights such as the Ra Clicky/Twisty self diagnose the type of cell inserted and 'protect' a rechargable cell by not allowing the cell output to drop below 2.9v.
Lights such as the D10 do not have this feature, and thus, require the use of protected cells that have their own internal circuit that does the same thing.
we already told you, go back and read the responses. both overcharge and charge from overdischarge can be explosive.
jimmy1970
Flashlight Enthusiast
Warning: It is easy to accidently turn on a D10 whilst it is in your pocket. The light will drain your cell completely and you will have an active pipe bomb in your pocket!!!
Don't do it. Protected cells like the AW ones are cheap - go get some and you will be OK.
James....
don.gwapo
Enlightened
Go get a digital multimeter if you continue to use your unprotected cell on your light. So that this way you can check the voltage of your batt from becoming overdrain or overcharge. But be careful, you are already warned by others.
Basically yes, I always choose protected over unprotected when ever possible. I have 6 year old unprotected AW 10440's that are still going strong and no
so far. Single cell operation is much safer than multiple cell. If you follow the safety rules and buy a good charger you should be "good to go". I have numerous other AW protected and unprotected batteries and have had no problems what so ever with them.This is the battery you need AW PROTECTED. You need to make sure it's longer than normal length properly fits your D10. This battery would not work in my NDI, but does work in my JET-1 PRO v3.0.
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FlashKat
Flashlight Enthusiast
This is your decision. I have been running unprotected batteries for 3 years with no problems. Others will argue to always use protected batteries.
Jay R
Flashlight Enthusiast
This happened due to it being a multicell light running some duff unprotected batteries.
If you use an single unprotected cell carefully there is no more reason for it to explode than a protected cell. The main issue is, with a protected cell you don't have to worry about looking after it so much. If you have a decent charger it will cut off at the correct voltage and so you don't have to worry about overcharging an unprotected. As the man said, the D10 can be prone to switching on in your pocket though so a protected cell is probably best.
For the record, a couple of times I've had lights turn on in my pocket and run an unprotected cell flat with no other consequence than having to throw away the cell. Doesn't mean it won't happen though, just that it's not a 'sure thing' it will explode like many would have you believe.
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Henk_Lu
Flashlight Enthusiast
Let me tell you a little story!
Fokker once detected a tiny little issue on their Fokker-50 airplanes. There was actually a possibility to engage "reverse drive" during the flight in a limited timeframe when the landing gear was put out. They judged the chance of such a misbehaviour very small, as pilots know what they do, and just recommended the airlines should update their planes to make it completely impossible.
Well, our small luxembourgish airline thought probably that their captains wereexperienced and wise enough not to do a manoeuvre during the flight which you only perform on the ground and that the actual chance was one to several millions that it could happen. Result : Over 20 people killed and a national drama, the plane crashed a few kilometers away from the airport.
That's why you should use protected cells. If you handle dangerous items, the less dangerous they are, the better!
Fokker once detected a tiny little issue on their Fokker-50 airplanes. There was actually a possibility to engage "reverse drive" during the flight in a limited timeframe when the landing gear was put out. They judged the chance of such a misbehaviour very small, as pilots know what they do, and just recommended the airlines should update their planes to make it completely impossible.
Well, our small luxembourgish airline thought probably that their captains wereexperienced and wise enough not to do a manoeuvre during the flight which you only perform on the ground and that the actual chance was one to several millions that it could happen. Result : Over 20 people killed and a national drama, the plane crashed a few kilometers away from the airport.
That's why you should use protected cells. If you handle dangerous items, the less dangerous they are, the better!
most of the people with these questions are noons who don't own a decent charger like the pila, but rather the cheapest piece of crap they could find. many of those __fire chargers don't even stop the charge, they just turn green and rely on the user to remove the cell, or the cell protection circuit to terminate the charge.
i've seen far to many noobs asking for advice, then someone comes in and tells them they HAVE to use li-ion for full performance. So they go buy the cheapest POS unprotected cells and crap chargers from ebay. many don't even know what a DMM is, let alone own one.
recommending li-ions to someone with zero knowledge or experience is plain irresponsible, and often has dangerous consequences. we have an entire forum dedicated to such incidents!!
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