Battery Output / Consistency / Battery Size

[Hamish]

Hi Please can anyone advise me on the power output from different batteries and are they consistent or does the power output levels change with the different batteries? (as they are used) eg 650mah , 900, 1000, 1300 etc....any info much appreciated!

 

[KulrMeStoopid]

Im no battery expert but as far as I know standard ego batteries put out 3.7v and the Mah size is just how long the battery will last time wise.

 

[Hamish]

Thanks for that, I have been told there is a difference in performance in what they kick out eg 3.7 to start dropping to ???? or with a 1300 say starting higher and dropping to ???? while they are being used.

 

[KulrMeStoopid]

Most batteries begin to lose their oomph once they reach about 1/2 charged.. the batteries should also have an automatic cut off once they get too low to produce enough voltage to power the atomiser

 

[Hamish]

Do you know if the output varies to start with then say with a 650 or a 1300?

 

[I Shall Not Recant]

Hot off a charger a battery such as an AW IMR 18650 2000mAh will start at about 4.2V and slowly drop as the battery drains and gets useless about 3V. The power doesn't really change but the voltage drops off.

An eGo battery such as the 650mAh will output 3.4V (I think it is) for the entire charge.

What batteries are you thinking of and we can be more specific?

 

[I Shall Not Recant]

Just in case @Hamish comes back (and seeing as I've got time to kill).

The problem is that you only asked half a question. I'm assuming due to the mAh ratings you gave that you mean some sort of eGo battery but there are different makes/types of eGo and they can behave differently.

A Joyetech or Janty eGo battery has a regulated output. Within the connector is a small circuit board that maintains the output at 3.4V (ish) until the battery has discharged.

The new Joyetech upgrade eGo batteries can be switched to remove the voltage regulation. They can either output a regulated 3.4V (ish) or you can switch it to unregulated and it will start hot off a charger at 4.2V and the voltage drops through use until the battery is discharged.

There is also the eGo Twist batteries and the Vision Spinner batteries which are variable voltage but are regulated. You can set the output to your desired voltage and the battery will output that voltage until it has discharged.

There are also Riva eGo style batteries which are (I believe) unregulated and so start off hot from the charger at about 4.2V which slowly drop until the battery is discharged.

There are also vGo batteries which I'd have to check as their are now different types.

Then there are batteries which are meant to be put into devices rather than be the device. The most common sizes used for e-ciggery pokery are 18350, 18500 and 18650. The device they are put in will determine whether the output is regulated or not.

Basically, every battery starts at a voltage but drops off through a charge. This can be taken into account using a regulator circuit. The mAh rating does not matter as to what voltage these batteries will output but it does determine how long it will take to go from fully charged to discharged.

If you tell us what battery you are enquiring about we can cut down on the possibilities.

Hope you read this before you buy a battery that doesn't do what you want.



I quite enjoyed writing this post

 

[Hamish]

Thank you for the help, that answers it for now, I can check out the battery types and will get back on this with more info.