CR2's Exploding?

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traderblue

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I have read some posts stating that when you double these up there is a risk of them exploding.
Any info or experience with this is appreciated.

Thanks

Since learnt to diy batt mod 8 months ago, had been using cr-2 till now. Never had any incident of explosion. Just used the charger that is meant for cr-2 (3.0v & 3.6v). If 3.0v (green-color) used the one that cut-off at 3.2v. If 3.6v (blue-color) used the one that cut-off at 4.2v. I had both chargers.
 

martha1014

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I read on another forum where someone had an unprotected battery explode and broke his jaw. I not to sure about this. Have you every heard of a battery exploding and causing injury. As a matter of fact in 2008 there wre 3.3 billion lithium batteries transported 1/28 million exploded. These are very slim chances and I would not worry about this. You are far more likely have a car accident or being struck by lightning.
 

WillyB

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The Protected CR2's don't just seem to cut it. You won't get the same performance. As far problems Detonator Robert of JB weld fame always said they were safe till he blew a hole in his leg a few weeks ago.

With unprotected CR2's some common sense is needed. Don't buy the cheap no-name blue ones from Ebay (like Detonator Robert). Get the 'offical' ones from a trusted source like here:

Rechargeable 3V CR2 800mAh Green - 1 Battery [UltraFire CR2] - $1.53 : High Tech DealZ, Simplifying the LASER Hobby!

Get yourself a meter and check some voltages. Make sure your charger is not overcharging them. Make sure to use a charger made for 3V cells, don't try to rig them into a standard 3.7V (4.2V) charger. Check them now and then before charging looking for any major voltage differences. Mark them and use them in the original pairs.
 
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Amajn

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Also i wanted to comment on Detonator Rob Not only are cr2's fussy to Use......His mod's he puts them in are so unsafe Crappy half a**ed Mods and obviously he had a short in it and that caused them to discharge rapidly thus swelling happened then BOOM batts explode



His mod is the worst ugliest thing i have ever seen lololol he is lucky he did not get hurt worse
 

Silverthorn181

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Also i wanted to comment on Detonator Rob Not only are cr2's fussy to Use......His mod's he puts them in are so unsafe Crappy half a**ed Mods and obviously he had a short in it and that caused them to discharge rapidly thus swelling happened then BOOM batts explode



His mod is the worst ugliest thing i have ever seen lololol he is lucky he did not get hurt worse


I agree and have had the discussion with Rob but I'm still concerned for all the poor people that he has sold those time bombs to!!! If you have one STOP USING IT NOW!!! Roberts went off in his pocket. It was not even being used and the hole in his leg is NASTY!!!!! Imagine that in your face!!!
 

Cisco

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The Tenergy Batts are the ones to use in my book..!!! Tenergy RCR123 3.0V These are LiFeP04 Protected. they last, slow drain, protected..!!! 750 Mah they also make
a lion 900mAh


Sorry to inform you but those Tenergy batteries are NOT protected. They say protected, but they are not. They consider the vent holes at the positive contact and the S.S. shell is enough protecting considering the safer LifePo4 chemistry. There is no PCB over discharge protection or short circuit protection. These are much safer then standard Lith-Ion, but don't be fooled into thinking these have any sort of real electronic protection or are 100% safe.......

Here is an email quote From Kevin Li @ Tenergy battery

From: Kevin Li <kevin@tenergybattery.com>
To: x@x.xxx
Sent: Tue, Feb 2, 2010 7:28 pm
Subject: Re: Product Inquiry

The battery itself does not come with build-in PCB. but the shell and venting design provide enough protection for regular usage.


Protected for "Regular usage", e-cigs don't use them in a regular way...

Cisco...
 

WillyB

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I've used LifePO4 and a couple Ultra Fire CR2s for a month without any problems...but I did finish my 'fog log' double barrel today and drilled 8 1/16 holes on the bottom cap just in case, but I don't expect any problems.
Well I guess a one month test proves their safety. :rolleyes:

The current demands of even a single Joye atty push the LiPo's far beyond their rated spec.
 

Krythis

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Well I guess a one month test proves their safety. :rolleyes:

The current demands of even a single Joye atty push the LiPo's far beyond their rated spec.

No, but that's also why I drilled holes in the bottom cap to relieve pressure if they do blow. If nothing else it will give me a split second or two to toss it.

I have many habits that could prove to be dangerous(i.e. my avatar); the off chance that a Li-Ion will blow up in my face doesn't terrify me. I rather have to buy some new teeth than cough up blood one day 8-o
 

Krythis

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Since I know the critics are out :rolleyes: let me clarify. I'm not new to vapping, just HV. 3.7v wasn't enough to make me quit analogs, but 5v was. I've never had any issues with warm batteries, but I do have one Ultra Fire(green) 3v 800mAh TR 15270 CR2 that when hooked up to a multimeter appears fine. When I put it in series with another they light the LED bright and everything, but when a load is applied it stops producing. This gives me a sense of security as there must be some sort of fail safe in those.
 
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