Animalmother
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march.brown
Flashlight Enthusiast
It quotes the height as 65.2mm (+0 / -1.0) so it isn't protected ... You tend to find that the protected cells are up towards 69mm even though they are classed as 18650 ... Some are being called 18700 , because of the increase in length due to the protection circuit.
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hellokitty[hk]
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No but Orbtronic will also sell protected versions. Also you can look for them on intl-outdoor.
Animalmother
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Cnqualitygoods sent me this for free after a small problem. Very nice of them. I don't think its a god idea to use this without voltage protection.
ChrisGarrett
Flashlight Enthusiast
I bought two of those unprotected Pannie 3100s from Orbtronics/Titanium a couple of months back and they work fine. They're on a business trip right now, so we'll have to wait for them to get back.
I also bought some Sanyo 14500s and some Soshine 16340s from them as well and both transactions went smoothly.
For my single cell lights (PD32/SC600) I didn't feel the need to buy their protected offerings.
Chris
Animalmother
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I am jus suprised they sent a unprotected sell granted it was for free but i can a new person putting the cell in and having it drain completely on him.
It was for a yezl t9 i dont think its even regulated let alone low any voltage protection. Thats why i was suprised.
It was for a yezl t9 i dont think its even regulated let alone low any voltage protection. Thats why i was suprised.
ChrisGarrett
Flashlight Enthusiast
You need to be conscientious when running unprotected cells in lights, which is why I only use them in single cell designs. Don't let kids play with lights that run unprotected Li-Ions, or even protected Li-Ions for that matter.
Chris
Animalmother
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How are you careful using them? How do you know when they'll be empty?
New people might not know about the drain on these.
Since it is unprotected how am i safely able to use lets say for hiking where ill be out for a period?
hellokitty[hk]
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You should check but most lights have a low voltage warning. You can even check now yourself if you're paying attention. Even if you discharge the battery all the way, in a single cell light like this, it's unlikely that you'll have any real problems as long as you don't try to recharge an overdischarged cell.
That said I will gladly take that deadly explosive for you and cover shipping given a reasonable cost (US shipping?).
That said I will gladly take that deadly explosive for you and cover shipping given a reasonable cost (US shipping?).
ChrisGarrett
Flashlight Enthusiast
I meter the lights I use. I check the cells often because I'm anal that way. I rotate them in and out, so I'm not using just one cell, constantly. I've done run tests on them in increments, so I have a 'general' idea how long they can run, but honestly, if I were out camping, I'd have that nifty new solar charging setup with me that I built last week and I'd be charging them up willy-nilly.
You could always bring a small analog meter with you, or absent that, stick with protecteds.
New people shouldn't be playing with unprotected Li-Ion cells. We don't let children drive cars for a reason.
Chris
march.brown
Flashlight Enthusiast
I charge up my cells to 4.2 volts then the next day I do a run test ... I put the torch on full power and regularly stop the test whilst checking the battery voltage (off load) ... I take the cells down to about 3.8 volts ... This gives me the run time on that particular torch and battery ... When I use the torch in future I know for example that on full I can use it for (say) two hours ... However , I don't often use my torches on full , so I will get about four hours of use to take the cell down to about 3.8 volts ... My guestimation of the battery run time is not too accurate but since I don't use the high mode too often , I have not yet been down to my prefered 3.8V level ... I check the voltages of my cells and if below 4.0V , I top them up anyway ... Li-Ions don't mind this sort of treatment.
I always prefer to keep my spare Li-Ions virtually fully charged ... I know this is not the ideal storage voltage , but that's my personal choice ... I don't like to have to top-up my cells before use ... I like to have my few spare cells fully charged ... I don't have many spare 18650 cells anyway , though I have just bought two Panasonic 3100's and two Xtar 2600's ... I will be retiring a couple of my old'ish Ultrafire (blue)unprotected cells now ... I've had good service out of them.
I will probably carry on using my Ultrafire (grey) Li-Ions as spares till I can justify getting a few more Panasonics.
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FlashKat
Flashlight Enthusiast
Scroll down this page, and you can click on the link for protected cells.
Animalmother
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I already have those protected cells. I am aware they are not as dangerous as they initially thought were.
I was jus wondering if it was protected as it looked like it had a circuit on it. I have a bunch of 18650s that and a 14500 and AA NIMH. Can't stop my love for 18650s.
