Tubbyengineer
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- Joined
- Aug 20, 2013
- Messages
- 10,602
In light of recent developments I'm posting this safety information...
Currently there are NO reliable datasheets available for AW IMR OR Efest batteries (there are also a lot of fakes out there which WILL have lower capacities so only buy from reliable sources). In light of this it is difficult to say exactly what the safe discharge rates are for these batteries. If you are planning to vape Sub Ohm (Using a coil of less than 1 ohm) Please bear in mind the following...
Sub Ohm vaping is inherently dangerous, do not attempt it unless you are an experienced vaper.
I do not recommend Sub Ohm vaping at all and particularly not with unknown batteries, if you must vape Sub Ohm then use only specialist batteries with high constant discharge current ratings.
Currently the KNOWN safe constant discharge currents for AW and Efest batteries stand at 5.5a for 18350 size and 10a for 18650 size.
This makes the lowest safe coil resistances 0.76 Ohms for 18350 and 0.42 Ohms for 18650. DO NOT go below these levels unless you have specialist batteries and have seen the manufacturers specs regarding safe constant discharge current.
When measuring coils for Sub Ohm vaping it is recommended that you use a CALIBRATED multimeter, not a standard atomiser resistance testing box, these are fine for general vaping and as an indicator to show dead shorts but a difference of 0.1 Ohms between the display and actual resistance could result in battery failure during Sub Ohm vaping.
Always remember to check measurements twice before connecting your atomiser and when first firing a new build be aware of warning signs that something may be wrong such as the Mod body getting warm.
for those using multi coil setups a resistance calculator can be found here - http://www.sengpielaudio.com/calculator-paralresist.htm
NOTE: Neither I nor POTV will accept responsibility if you melt your face, hands or any other body part whilst Sub Ohm Vaping, so if you end up with a face like a half sucked jelly baby - dont come running to me...
Currently there are NO reliable datasheets available for AW IMR OR Efest batteries (there are also a lot of fakes out there which WILL have lower capacities so only buy from reliable sources). In light of this it is difficult to say exactly what the safe discharge rates are for these batteries. If you are planning to vape Sub Ohm (Using a coil of less than 1 ohm) Please bear in mind the following...
Sub Ohm vaping is inherently dangerous, do not attempt it unless you are an experienced vaper.
I do not recommend Sub Ohm vaping at all and particularly not with unknown batteries, if you must vape Sub Ohm then use only specialist batteries with high constant discharge current ratings.
Currently the KNOWN safe constant discharge currents for AW and Efest batteries stand at 5.5a for 18350 size and 10a for 18650 size.
This makes the lowest safe coil resistances 0.76 Ohms for 18350 and 0.42 Ohms for 18650. DO NOT go below these levels unless you have specialist batteries and have seen the manufacturers specs regarding safe constant discharge current.
When measuring coils for Sub Ohm vaping it is recommended that you use a CALIBRATED multimeter, not a standard atomiser resistance testing box, these are fine for general vaping and as an indicator to show dead shorts but a difference of 0.1 Ohms between the display and actual resistance could result in battery failure during Sub Ohm vaping.
Always remember to check measurements twice before connecting your atomiser and when first firing a new build be aware of warning signs that something may be wrong such as the Mod body getting warm.
for those using multi coil setups a resistance calculator can be found here - http://www.sengpielaudio.com/calculator-paralresist.htm
NOTE: Neither I nor POTV will accept responsibility if you melt your face, hands or any other body part whilst Sub Ohm Vaping, so if you end up with a face like a half sucked jelly baby - dont come running to me...
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