Mech mod

[Gary81]

Hi all not new to vaping, just haven't posted for a while, I have always used regulated mods from day one really, just bought the bonza mech kit, have been researching battery safety and ohms law etc. Just want to know if it is normal I am using an efest 20700 300mah 30a battery (have been on Moochs Facebook page) and this cell is accurately rated. I have a .13 alien build on it puts out just over 100w and about 28a output, want to know is it normal for battery to only last about 10 mins at most before I feel I'm losing power and have to recharge? If so what is the point of a mech if you need like 4 batteries in your pocket just to keep you vaping? I'm loving the way it vapes just not the battery life!
Thanks
Gary

 

[Deleted member 54254]

I'd pop a samsung 30T in there.

 

[Gary81]

I'd pop a samsung 30T in there.

Just ordered 2 of them from fogstar, like I say I'm loving the hit from the mod but having never owned one am being a bit paranoid about voltage etc

 

[Deleted member 54254]

I hear you. Never tried an efest myself so I've no idea how they perform. I prefer to use a battery from a recognised company like Sony, Samsung, LG etc.

 

[Gary81]

I hear you. Never tried an efest myself so I've no idea how they perform. I prefer to use a battery from a recognised company like Sony, Samsung, LG etc.

I get what you're saying 100% but saw Moochs test and saw this battery was rated accurately by efest, I've ordered 2 samsung 30t batteries but will it be normal for any 30-35a battery to last 7-15 mins vaping at about 107w?

 

[Deleted member 54254]

I've honestly not vaped that hot so I can't really comment on that side of it. From my perspective, I've found 20700's to be quite disappointing on mechs. Been using some vapcells in my vindicator of late and they certainly seem to sag quite quickly.

 

[Andy S]

Hi all not new to vaping, just haven't posted for a while, I have always used regulated mods from day one really, just bought the bonza mech kit, have been researching battery safety and ohms law etc. Just want to know if it is normal I am using an efest 20700 300mah 30a battery (have been on Moochs Facebook page) and this cell is accurately rated. I have a .13 alien build on it puts out just over 100w and about 28a output, want to know is it normal for battery to only last about 10 mins at most before I feel I'm losing power and have to recharge? If so what is the point of a mech if you need like 4 batteries in your pocket just to keep you vaping? I'm loving the way it vapes just not the battery life!
Thanks
Gary

On that resistance 100W is what you'll be getting when the battery is at 3.7V
When it's fully charged, it'll be 135W, but more importantly it'll be over the 30A your battery is rated at.

If you're using a mech at low resistance you will notice the power drops sooner than you're used to because a regulated device increases the Amps draw to compensate for the drop in voltage as the battery gets used. A mech doesn't do that, it just gives you whatever is in the battery.

 

[Gary81]

On that resistance 100W is what you'll be getting when the battery is at 3.7V
When it's fully charged, it'll be 135W, but more importantly it'll be over the 30A your battery is rated at.

If you're using a mech at low resistance you will notice the power drops sooner than you're used to because a regulated device increases the Amps draw to compensate for the drop in voltage as the battery gets used. A mech doesn't do that, it just gives you whatever is in the battery.

Thanks I've been calculating the battery at 3.7v as that is what is printed on the wrap I thought you just calculated at 4.2v for an extra safety barrier, even so a Samsung 30t will be 35a, so will pull under the max discharge at 4.2v so will that cell perform better?

 

[Deleted member 54254]

Apologies, from your initial post I thought you were familiar with battery safety. Sure, the 30T shines in mechs and should last longer than the efest. You might want to think about the coils you use too. Heavier mass takes more oomph to get going. I generally use plain wire to keep the mass down and cut down on ramp up time, predominantly Ni80 or Brochrome.

 

[Gary81]

Apologies, from your initial post I thought you were familiar with battery safety. Sure, the 30T shines in mechs and should last longer than the efest. You might want to think about the coils you use too. Heavier mass takes more oomph to get going. I generally use plain wire to keep the mass down and cut down on ramp up time, predominantly Ni80 or Brochrome.

I've been doing my research on battery safety, or thought I had from what I've worked out a 20700 cell at 3.7 amps will output 28.46a at 105.31w, so to me from what I have researched is within the battery capabilities, what I seem to have failed to realise is that 3.7v is not a full charge reading