Protected Battys in Protege

[a2dcovert]

I don't get the connection between unprotected and exploding. I would think they would just stop working.

There is one connection that I know of. The protection circuit does prevent a failure of the battery from over current, short circuit. It shuts off the battery in this event.

But even the newer unprotected batteries have a vent valve in the positive terminal that is supposed to prevent explosion. Now whether it works or not may be debatable. I am glad that I'ill have a strong metal enclosure to keep my mouth protected in-case one of these babies lets loose. I'm retiring all my nicosticks while I'm still in one piece.

Kevin

 

[gjrhine]

There is one connection that I know of. The protection circuit does prevent a failure of the battery from over current, short circuit. It shuts off the battery in this event.

According to Steve so does the charger.

 

[a2dcovert]

According to Steve so does the charger.

Agreed, as long as it is in the charger. When it's in your Protege or Prodigy the battery is on it's own.

Kevin

 

[fjames]

The danger in li-ion (and lithium primary) cells increases enormously when used in series - the lower charged one may setup a circuit with the higher charged one and run away with itself. I'm guessing this is why the Prodigy (2 cells in series) comes with safe chemistry cells that don't need protection like a standard li-ion would, and the single cell Protege comes with unprotected li-ion cells. Single cells are fairly safe when charged correctly.

I don't think they "explode." They release flame and gas (vent to flame) and when it's in a closed container like your ecig, the "explosion" is caused by the increase of pressure in that device. So what you think is protecting you is actually the danger (shrapnel wise - it could easily blow the battery cap off and into a wall.)

If you do have a "vent to flame" issue with a li-ion cell, take it seriously. The smoke and residue is very hazardous. Long-term health issues that at worst you don't want to know about. Look it up if you're interested.

Tip - don't leave either device in your car on the dash (or similar environment) on a hot day ... just good practice.

 

[lotus14]

According to Steve so does the charger.

Yes and according to Tenergy, these batts have undervoltage protection built in as well.

NO overprotection circuit can stop an uncontrolled chemical reaction, which is what causes li-ion batteries to catch fire or explode.

If the cell has a factory defect, or is damaged, it can catch fire or explode whether it is protected or not. Happens with laptop batteries and they're as protected as you can make 'em.

In any case, if you feel safer using protected ones then by all means do so. Just realize what "protected" means. They can still blow up. And in any case, don't leave 'em on a charger overnight, when you're not home, or in a hot car.

 

[a2dcovert]

I haven't thought about leaving them in the jeep while I am making my rounds. I'll have to remember that.

Kevin

 

[gjrhine]

Yes and according to Tenergy, these batts have undervoltage protection built in as well.

NO overprotection circuit can stop an uncontrolled chemical reaction, which is what causes li-ion batteries to catch fire or explode.

If the cell has a factory defect, or is damaged, it can catch fire or explode whether it is protected or not. Happens with laptop batteries and they're as protected as you can make 'em.

In any case, if you feel safer using protected ones then by all means do so. Just realize what "protected" means. They can still blow up. And in any case, don't leave 'em on a charger overnight, when you're not home, or in a hot car.

Well then case closed. The charger protects from over charging and unprotected batteries are no more likely to explode.

 

[a2dcovert]

Well then case closed. The charger protects from over charging and unprotected batteries are no more likely to explode.

I guess you're right. The only thing that matters to me now is the performance and how long they last.

Kevin

 

[rfun6]

Ok would any of these batteries work fine in the protege?
This

or This

or This...

I found these and wondered since I saw they had decent prices.

 

[CaSHMeRe]

The 3rd link didn't work for me rfun ...

The first 2 should work fine. Any 14500 battery (protected or nonprotected) should work.