Recently a story broke on the ECF regarding an unfortunate incident where an unvented, unprotected Mod detonated putting the user in the hospital. Unfortunately this involved the use LiFePo4 Tenergy batteries, the same batteries that are used in the 5V OMG.
Before this story broke I did a video review of 5V OMG. I stated multiple times that this unit should only be used with cartomizers rated at 3 Ohms or higher. At the time I had a feeling that the unit was actually running over 5v but I didn't know exactly how much higher. I also noted my concern over the size of the vent hole which I believed to be rather inadequate to properly vent the batteries should an incident ever occur.
Without knowing all the details of the incident there a couple of things that led to the unfortunate outcome.
1. An Unvented PV
2. An Unprotected PV (no mofset switch)
3. Unprotected Batteries
4. The use of an extremely low Ohm Cartomizer like a 1.0 or 1.25 Ohm (guessing)
Unprotected PVs and the use of unprotected batteries is not that uncommon in the vaping world. These 2 factors alone were not the cause of detonation, but when added with the other 2 it is a predictable outcome. Forget that these were the LiFePo4 batteries, the same outcome would have happened with the use of any unprotected 3v stacked batteries.
There is nothing to fear using your 5V OMG, unfortunately the tanks that came with them in my opinion should have been outfitted with 2.5 - 3.0 Ohm Dual Coil Cartomizers...but they weren't. As well there probably should have been some documentation that came with the unit warning against the use of low ohm cartomizers. Was there a single report of these specific units having an incident? No. Were there a lot of folks that experienced burnt or scorched juices? Yes. Was that predictable using a 1.5 Ohm Dual Carto at 5.3v with unprotected batteries? Yes.
Should you switch to other batteries? No. The Tenergy batteries are truly safer than the 900 mAh Lithium Ion alternative batteries because of the chemistry behind a Lithium Polymer battery. That being said, no battery is safe when used in an unsafe manner, especially a manner that does not allow the battery the ability to out-gas or pushes the battey beyond it's rated Amp limit.
Tenergy RCR123A 3v 750 mAh batteries are rated at either 8C/4A or 10C/5A or Amps. To keep unprotected batteries operating safely they should only operate at 60% of their C or Amp rating. To ensure that these batteries never overheat or get damaged they should only be used when the load draws 2.4A or lower. (Using the lower C rating)
Safety Features and How They Work
PVs with built in battery protection like a Darwin, ProVari, or Lavatube etc. will detect the atomizer ohm rating and not allow the unit to go over a certain number of watts. This is to protect the user, the unit, and the batteries. I'm not sure about the Darwins, but the ProVari can only go to 4.2v with 1.5 Ohm Carto and the Lava Tube can only go to 3.8v. This translates to 11.76w and 9.62w respectively. Batteries that do have built in protection chip like a AW IMR will not allow the battery to function once it hits a certain amount of Amps.
The 5V OMG comes off the charger between 5.2 - 5.3v, we will use the higher voltage of the two for the numbers below.
Single Coil Cartomizers
Stealth/Diamond/Standard.........4.2v.....2.2 Wow Carto = 8.82w
Stealth/Diamond/Standard.........4.2v.....3.3 Cool Carto = 5.34 w
OMG..................................... 5.3v.....2.0 SVCT Carto = 14.04w (May still scorch juices)
OMG..................................... 5.3v.....3.3 Cool Carto = 8.51w
OMG..................................... 5.3v.....3.0 SVCT Carto = 9.36w
Dual Coil Cartomizers
OMG......................................5.3v.....1.5 Ohm = 18.72w = 3.53A
OMG......................................5.3v.....2.0 Ohm = 14.04w = 2.65A
OMG......................................5.3v.....2.5 Ohm = 11.23w = 2.12A
OMG......................................5.3v.....3.0 Ohm = 9.36w = 1.76A
(...V4L does not sell these 2.5 or 3.0 Ohm Dual Coil 510 Tank flanged pre-punched replacement Cartos, but these are readily available from other vendors)
Generally speaking the sweet spot expressed in wattage is between 8-11w. Some folks like a cooler vape and tend to enjoy 8-9w while others enjoy a warmer vape around 11-12w.
The new 2.0 Single Vertical Coil Tank Cartomizers are meant for use with 3.7v KR Batteries.
The new 3.0 Single Vertical Coil Tank Cartomziers are meant for use with a 5v Passthrough
So folks, please.....don't be afraid to use your 5V OMGs, simply follow what I noted in my video. Can you use a 2.5 Ohm Dual Coil safely? Yes. Was I being a little overly cautious when I noted using 3 Ohms or higher? Yes. Why? Because I want all of you to be safe and 3.0 Ohms or higher will absolutely ensure that.
Now I have put the 5v OMG in with my other PVs and use it daily without worry and without burning juices. I use it with 2.5 Ohm and 3 Ohm 510 Dual Coil Tanks and it works great. You should do the same and enjoy it daily without worry.
Before this story broke I did a video review of 5V OMG. I stated multiple times that this unit should only be used with cartomizers rated at 3 Ohms or higher. At the time I had a feeling that the unit was actually running over 5v but I didn't know exactly how much higher. I also noted my concern over the size of the vent hole which I believed to be rather inadequate to properly vent the batteries should an incident ever occur.
Without knowing all the details of the incident there a couple of things that led to the unfortunate outcome.
1. An Unvented PV
2. An Unprotected PV (no mofset switch)
3. Unprotected Batteries
4. The use of an extremely low Ohm Cartomizer like a 1.0 or 1.25 Ohm (guessing)
Unprotected PVs and the use of unprotected batteries is not that uncommon in the vaping world. These 2 factors alone were not the cause of detonation, but when added with the other 2 it is a predictable outcome. Forget that these were the LiFePo4 batteries, the same outcome would have happened with the use of any unprotected 3v stacked batteries.
There is nothing to fear using your 5V OMG, unfortunately the tanks that came with them in my opinion should have been outfitted with 2.5 - 3.0 Ohm Dual Coil Cartomizers...but they weren't. As well there probably should have been some documentation that came with the unit warning against the use of low ohm cartomizers. Was there a single report of these specific units having an incident? No. Were there a lot of folks that experienced burnt or scorched juices? Yes. Was that predictable using a 1.5 Ohm Dual Carto at 5.3v with unprotected batteries? Yes.
Should you switch to other batteries? No. The Tenergy batteries are truly safer than the 900 mAh Lithium Ion alternative batteries because of the chemistry behind a Lithium Polymer battery. That being said, no battery is safe when used in an unsafe manner, especially a manner that does not allow the battery the ability to out-gas or pushes the battey beyond it's rated Amp limit.
Tenergy RCR123A 3v 750 mAh batteries are rated at either 8C/4A or 10C/5A or Amps. To keep unprotected batteries operating safely they should only operate at 60% of their C or Amp rating. To ensure that these batteries never overheat or get damaged they should only be used when the load draws 2.4A or lower. (Using the lower C rating)
Safety Features and How They Work
PVs with built in battery protection like a Darwin, ProVari, or Lavatube etc. will detect the atomizer ohm rating and not allow the unit to go over a certain number of watts. This is to protect the user, the unit, and the batteries. I'm not sure about the Darwins, but the ProVari can only go to 4.2v with 1.5 Ohm Carto and the Lava Tube can only go to 3.8v. This translates to 11.76w and 9.62w respectively. Batteries that do have built in protection chip like a AW IMR will not allow the battery to function once it hits a certain amount of Amps.
The 5V OMG comes off the charger between 5.2 - 5.3v, we will use the higher voltage of the two for the numbers below.
Single Coil Cartomizers
Stealth/Diamond/Standard.........4.2v.....2.2 Wow Carto = 8.82w
Stealth/Diamond/Standard.........4.2v.....3.3 Cool Carto = 5.34 w
OMG..................................... 5.3v.....2.0 SVCT Carto = 14.04w (May still scorch juices)
OMG..................................... 5.3v.....3.3 Cool Carto = 8.51w
OMG..................................... 5.3v.....3.0 SVCT Carto = 9.36w
Dual Coil Cartomizers
OMG......................................5.3v.....1.5 Ohm = 18.72w = 3.53A
OMG......................................5.3v.....2.0 Ohm = 14.04w = 2.65A
OMG......................................5.3v.....2.5 Ohm = 11.23w = 2.12A
OMG......................................5.3v.....3.0 Ohm = 9.36w = 1.76A
(...V4L does not sell these 2.5 or 3.0 Ohm Dual Coil 510 Tank flanged pre-punched replacement Cartos, but these are readily available from other vendors)
Generally speaking the sweet spot expressed in wattage is between 8-11w. Some folks like a cooler vape and tend to enjoy 8-9w while others enjoy a warmer vape around 11-12w.
The new 2.0 Single Vertical Coil Tank Cartomizers are meant for use with 3.7v KR Batteries.
The new 3.0 Single Vertical Coil Tank Cartomziers are meant for use with a 5v Passthrough
So folks, please.....don't be afraid to use your 5V OMGs, simply follow what I noted in my video. Can you use a 2.5 Ohm Dual Coil safely? Yes. Was I being a little overly cautious when I noted using 3 Ohms or higher? Yes. Why? Because I want all of you to be safe and 3.0 Ohms or higher will absolutely ensure that.
Now I have put the 5v OMG in with my other PVs and use it daily without worry and without burning juices. I use it with 2.5 Ohm and 3 Ohm 510 Dual Coil Tanks and it works great. You should do the same and enjoy it daily without worry.
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