10440 Battery Inquiry

[kdd121s]

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[B][U][FONT="]The Idea/Question[/FONT][/U][/B][FONT="]:[/FONT][/B][FONT="]

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[FONT="]As I have had very little experience with 10440 batteries, I have been fiddling with ideas as to how the 10440 will perform. To be more exact, I am curious as to how long the 10440 battery will last during regular use. After some farting around on the inter-web for a bit research, I think I may have come up with an idea as to how to guess-timate how long the 10440 battery will last.

Variables:

1. Battery: 10440 3.7v 600mAh Li ion Battery (more realistically 300-400mAh)
2. Average Draw Length: 5 sec (varies from person to person)
3. Average Analog Cigarette's Number of Draws: 15 Draws (on the high end)
4. Number of Analog Cigarettes Per Pack: 20 Cigarettes
5. Number of Packs YOU Smoke/ Smoked A Day: 1 Pack (for example)

Battery Basics:

Information Gleaned From Wikipedia:

An ampere-hour or amp-hour (symbol Ah , A·h, A h) is a unit of electric charge, with sub-units milliampere-hour (mAh) and milliampere second (mAs). One ampere-hour is equal to 3,600 coulombs (ampere-seconds), the electric charge transferred by a steady current of one ampere for one hour.[1]

The ampere-hour is frequently used in measurements of electrochemical systems such as electroplating and electrical batteries.

The commonly seen milliampere-hour (mAh or mA·h) is one-thousandth of an ampere-hour (i.e., 3.6 coulombs), and is a technical term for how much electrical charge a particular battery will hold. Small batteries, such as those in laptops and digital cameras, are often rated in milliampere-hours. As an example, digital camera batteries with higher mAh values theoretically last longer without requiring a recharge, allowing one to take more photographs before having to replace the batteries.

Calculation:

1. 10440 Battery = 350mAh or 350 thousandths of an ampere-hour (conservative guess-timation)

2. 1000mAh = 1 hr of steady current

3. 350 ÷ 1000 = 0.35

4. 1hr = 60 min

5. 0.35 x 60 min = 21 min

6. So, 350mAh = 21 min of steady current

7. Average Draw (assuming) = 5 sec

8. 1 min = 60 sec

9. 21 min x 60 = 1260 sec

10. 1260 sec ÷ 5 = 252 Draws

11. Average Analog Cigarette's Number of Draws = 15 Draws (on the high end)

12. 252 Draws ÷ 15 = 16.8 Analog Cigarettes

13. Number of Analog Cigarettes Per Pack = 20 Cigarettes

14. 16.8 Analog Cigarettes ÷ 20 = 0.84 or 84% of a Pack of Analog Cigarettes

15. Number of Packs YOU Smoked a Day = 1 (for example)

16. 0.84 Packs of Analog Cigarettes ÷ 1 = 0.84 Days of Regular Smoking

Conclusion:

If we lived in a perfect world, with no other variables present a 10440 battery "could" last a 1x pack per day ex-smoker, 84% of a day. Basically, 2x 10440 batteries could float a 1x pack per day ex-smoker for purposes of vaping. In reality, with variables like: heat, incorrectly marked battery mAh, length of draw, atomizer efficiency, atomizer Ohm, batter voltage drop off, ad nauseum, etc., an average vaper should expect to go through at least 4x 10440 in the course of a single day of regular vaping. Again, I have very little personal experience with 10440 batteries, so I would like to hear everyone else's experiences and opinions on this topic. If nothing else, this has been an interesting way to burn some time while waiting on my Precise (10440 Model) to arrive.[/FONT]​

 

[BrockJ]

I'm in an office most of the time, vape at my desk, normal user (I don't breathe through it).
Usually, I can go all day on a single battery. Worst case, I'll have to change it out around 3pm or so... I can deplete and entire 510 cartomizer on a single battery.

My batteries are just a few weeks old so, they're still performing at their peak.

I run a helicopter shop on the weekends where things are a little more hectic. I usually take the 16340 - T1 or the 14500 - Super6 due to the fact the use is a lot higher...

If I'm on the 10440/Precise constantly, I get abour 1½ - 2 (top performing) hours out of it.

It's more of a Ferrari than a Peterbuilt....

 

[forcedfuel50]

Pretty cool stuff!

 

[aschmidy]

I get 1 1/2 hours on it when I am sitting on my computer and it doesn't leave my hand. It lasts most of the day if I'm out and about. And my batteries aren't new.
Size, style and life of batteries = perfect out and about ecig! Classy!

 

[kdd121s]

Sounds like I wasn't entirely off the reservation with my guess-timation of the battery life. The next question: does the 10440 battery deplete gradually or does it have a noticeable voltage drop at any point?

 

[aschmidy]

For me, it depends on the battery. I have a couple that are just 'bam' done, no more vapor. They may be just coming to the end of their life, I've had them a while. Most of mine just gradually drop off, but by the time I notice it I have about 15 min or so before I REALLY need to change them.

 

[Switched]

I have a much simpler rule of thumb. depending on the vaper, one can expect 1-1.5 hr/100 mAh. True mAh that is.

It also seems that protected batteries do not last as long as unprotected ones. and protected batteries seem to have a higher mAh ratings than the unprotected ones. Anyone please corerct me if I am wrong, I believe the extra juice is used to run the PCBs on them. Because although they indicate the have more mAh, they only perform the same length as unprotected ones, well at least all the "fire" series.

 

[gerry81611]

For me, it depends on the battery. I have a couple that are just 'bam' done, no more vapor. They may be just coming to the end of their life, I've had them a while. Most of mine just gradually drop off, but by the time I notice it I have about 15 min or so before I REALLY need to change them.

are the batteries you are using protected? protected batteries have a descending voltage curve until they hit the minimum voltage and then stop dead in their tracks. unprotected batteries will continue the curve down until either you get ...... off and replace them or they get damaged.

 

[aschmidy]

Mine are all protected, my older ones are ultrafire, the new ones are trustfire. Don't know why those two I have are just doing the dead stop for me. Like I said, I've had them a while, so they are probably just not going to last much longer.

 

[timothymass]

im guessing your battery total life span is going to be in direct coralation with the amount of batteries you have in rotation as well