Why Make An Amp Limit?!?

[zoiDman]

As others have mentioned, it’s about keeping the amps in a range that are safe for the battery and the PV.

DaveP mentioned the difference between a Car at 12 volts and your House at 110 volts. It’s a good Example.

Say you want to run a 100 watt light bulb in your car. It would take 8.33 amps @ 12 volts to run the light at 100 watts.
But in your House a 100 watt light bulb only takes .90 amps.

For a given wattage, it takes Less Amps at a Higher Voltage. And Visa-Versa. It takes More Amps at a Lower Voltage for a given Wattage. This is why Main Electrical Transmission Lines are at Very High Voltage, usually 440,000 Volts.

For an e-Cigarette. I might try to make 8 watts using a Low Resistance Atty or Carto. So my Voltage would be Low compared to a Regular Resistance Atty/Carto.

Hence I need More Amps to make the 8 watts at the Lower Voltage. And the Amps needed at this Lower Voltage might be More than the Battery or the PV can Handle Safely. So the amp limiter shuts down the PV to protect both the Battery and the PV.

Think of an Amp Limiter as a “Fuse” in your house. If you try to pull more amps that the House Wiring, Receptacle and or Appliance can handle, the fuse “Trips” to keeps things from going Boom or catching on Fire.

 

[knivesout]

Don't take this the wrong way Bobby, but that's kind of like asking why cars have a top speed. As Nomoreash pointed out individual hardware components used have current and power limitations. They could design using higher current and power limitations, but devices would be bigger, heavier, and more expensive. And in the end, why? It's not like anyone is going to vape at 30W, you juice would be burnt to a crisp.

There are people that like to vape at 20+ watts. I can't really try it myself and imagine that at those temperatures there's got to be some burning going on, but people do indeed vape at those more extreme power levels.

 

[BobbyDidge]

The chances of a violent incident with your Varitube are statistically greatly reduced because it is a single battery device and doesn't use stacked bats. If you want to decrease them even more, only buy high quality bats from reputable sources, and care for them properly, IOW don't overcharge them. When the light goes green on the charger, take them off (don't just unplug the charger). Also, from what I understand just about every incident of violent outgassing that has happened, has happened on the first fire after the bat came off the charger. Get in the habit of doing a test fire away from your face as soon as you put the fresh bats in.

Good 18650's for your device:

CGR18650CH Panasonic 18650 Li-Mn-Li-ion CGR18650CH High Drain 10A Rechargeable IMR Hybrid Battery Cell

Another good source for bats They have 3100 mAh bats, but not sure if they will fit your device. They also have AW IMR 18650's which is the other good pick for Lavatube style PV's:

Super T Manufacturing, Innovative manufacturer of electronic cigarette products.

I usually buy mine from Smartvapes.com, but they are out now. Use caution in buying bats. They are heavily counterfeited. Not a good item to buy discounted from eBay.

Hmm should I go with the new hybrid imr (first link) or just get a standard aw imr (second link)