Can protected cr2's be used in series?

[scrappy]

Hi guys. Please bear with me as I'm not really fluent in all this electrical techno bable. Is there any way to use protected cr2's in series to get 6v on a mechanical battery mod? Just for reference, I'm using Ultrafire 15270 600mah 3v batteries.

I read a while back that the cut off on the protection circuit is 5v so you need a regulator to use these. Is that true? I'm using a Mako Midi and it works awesome with a 14500 btw.

Any help would be awesome.

 

[CHUCKLEHEAD]

i do at my own risk ! and have been

 

[scrappy]

Are you using the same batteries as I am? Because I can't get them to work in my device. (with any of my atomizers) I can't even get them to work in series if I hardwire them directly to the atomizer with spare wire I have laying around. They'll work individually but not in series.

 

[Krythis]

I've made several 5-6v mods using nothing but CR2s. They're the only batteries I've used in mods, but I will need to get some 14500 soon. I use LifePO4 and haven't had any issues with them exploding, but I have had one or two rapid discharge and get very hot. Which is what they are supposed to do instead of exploding. I've used them with and without 5v regulators. As with anything they are use at your own risk, but 3.7 just does not cut it for me! At least until I got the LR attys from Nhaler, now I need to find a use for all of these CR2s lol.

 

[scrappy]

I thought the LifePO4 just has safer battery chemistry and not a protection circuit. I think the problem is using my batteries in series is tripping the circuit.

 

[scrappy]

Anybody else got some info for me?

 

[BuzzKill]

The protection circuit is designed to OPEN when there is to much current draw OR the voltage goes below a pre-set value.

The current value is different for different MFG so ?? what your are at is unknown ( ask the MFG or seller )

The low voltage is usually in the 2.75 volt range ( this varies also ! )

as always no exact answer , this is a changing target for the MFG they are learning and changing as the technology develops

Low res. attys and High voltage will blow the circuit in the battery ( based on the current set point ) so use a higher resistance atty and you will have less problems with them opening up on you !

 

[chuckie]

Anybody else got some info for me?

I use 2 green unprotected cr2's in my adaptever,have been doing so for over 6months and they work just fine. I don't know about the protected ones.

 

[scrappy]

The protection circuit is designed to OPEN when there is to much current draw OR the voltage goes below a pre-set value.

The current value is different for different MFG so ?? what your are at is unknown ( ask the MFG or seller )

The low voltage is usually in the 2.75 volt range ( this varies also ! )

as always no exact answer , this is a changing target for the MFG they are learning and changing as the technology develops

Low res. attys and High voltage will blow the circuit in the battery ( based on the current set point ) so use a higher resistance atty and you will have less problems with them opening up on you !

Awesome! Thanks a bunch, and I'll give those high resistance attys a try.

 

[KarrMcDebt]

In theory it should be fine, I use three cr123 batteries in my Surefire flashlight. I don't think that it is using them in series that is the actual problem, but instead its the massive drain that the heating coil requires.

I however will not use any unprotected batteries, I already had a meltdown caused by a short circuit using a battery that I THOUGHT was protected. (It came in my 510 usb passthough.)

That battery went to recycling. Since then I won't buy any batts for e-cigs that aren't protected, and I mean over discharge, over charge and short circuit protection.

 

[scrappy]

Well after doing some research, this is my conundrum....

Do I use a hv atty? From what I've read this might defeat the purpose of a 6v device.

Do I use unprotected cr2's and risk them blowing up? Maybe LifePO's instead?

Or do I just use a LR atty and forget about the whole "real" 6v thing? Right now I'm leaning toward this option.

 

[WillyB]

Do I use unprotected cr2's and risk them blowing up? Maybe LifePO's instead?

With some common sense many use the unprotected CR2's. The 3V Tenergy LiPO's would be a good choice. With a Joye atty they should deliver a nice 5.18V vape, but they may not fit your device as they are bigger (17x34mm) than CR2's (15x27mm).

 

[scrappy]

Thanks! I'll find out of those LiPO's will fit. Is it hard to find someone who supplies those in the US?

 

[5th Element]

i use protected cr2s in my BB with the 510 attys with the washer and cartomizers np