New Mod,,,,,,,TEKKEON MOD 5v...Wicked !!

[DonDaBoomVape]

Thanks, chev! That makes sense to me. Let's see if I can apply my liberal arts understanding of Ohm's Law to this...

Current (amps) = Volts / Resistance (ohms)​

Assuming the two batteries are ~2750 mAh 3.7V and using a 2.3 ohm Joye 510 atomizer:

• (3.7V + 3.7V) / 2.3 ohms = 3.2 amps.
  
  
• Those batteries throttled to 5V: 5V / 2.3 ohms = 2.2 amps.
  
  
• So the effective mAh of 2750 mAh batteries throttled to 5V = 2750 mAh X (3.2 / 2.2) = 4000 mAh.

Is that correct?

 

[chev327fox]

Thanks, chev! That makes sense to me. Let's see if I can apply my liberal arts understanding of Ohm's Law to this...

Current (amps) = Volts / Resistance (ohms)​

Assuming the two batteries are ~2750 mAh 3.7V and using a 2.3 ohm Joye 510 atomizer:

• (3.7V + 3.7V) / 2.3 ohms = 3.2 amps.
• Those batteries throttled to 5V: 5V / 2.3 ohms = 2.2 amps.
• So the effective mAh of 2750 mAh batteries throttled to 5V = 2750 mAh X (3.2 / 2.2) = 4000 mAh.

Is that correct?

WOW!! I didn't get that technical with it but great job Don!! Geeze I feel small now <looks down and twiddles his feet>

 

[candre23]

Is that correct?

Yes and no. But if I wanted to be pedantic about it, mostly no

The milliamp-hour rating of the battery doesn't change. If you have two batteries rated for 2 amp-hours (2000mAh) wired in series, the circuit has a total capacity of 2 amp-hours. Changing the load or the efficiency of the regulation doesn't change the capacity. Just like if you have a car with a 15 gallon fuel tank that gets 20 miles to the gallon, and you stick a more efficient engine that gets 30 miles to the gallon in it, the fuel tank still holds 15 gallons. You just get more miles out of a full tank.

So how many miles hours will you get out of a full tank battery with this car mod?

It depends on how it's regulated. Since it's using the original factory-built regulation circuitry, and only a totally clueless factory wouldn't use a switching regulation circuit, we'll assume that it does. Most 5V mods currently available use linear regulators, which are nice and simple but woefully inefficient. They waste any excess voltage as heat. The tekkeon uses a switching (PWM) regulator (probably), so it's likely getting 90% efficiency or more. Lets assume 90% to be safe.

Stand back, I'm about to do math.

5V / 2.3ohms = 2.17A current draw

2Ah capacity / 2.17A * .9 (efficiency) = .83 hours of vape time.

Now, that's .83 hours (~50 minutes) of actually holding the button down. Even the most hardcore vapers have to pause for breath every once in a while, so the MTBR (mean time between recharges) will be much higher.

For comparison, a regular 3.7V mod using a single 2400mAh 18650 will net you 1.5 hours of constant vape time:

2.4Ah / (3.7V / 2.3ohms) = 1.5 hours

So if we assume a chain-vaper gets 48 hours MTBR with a 3.7V 18650 mod, you can assume the same vaper will get about 27.84 hours MTBR with the tekkeon:

.83 / 1.5 = .58 (ratio of on-time for tekkeon to on-time for regular 18650)

48 hours * .58 = 27.84 hours MTBR

---------------------------------------------------------

TL;DR - If you get at least two days on a 3.7V 18650 mod you'll get over one full day with the tekkeon.

 

[chev327fox]

I have no idea what this means

If I were to say what I KNOW for sure, it is that I am a HEAVY vapor and I have gotten 4 steady days of vaping from this device, I don't know what numbers back that up but it does happen

Although if it is like you are saying (like I thought of it) with the more efficient engine (the regulator) then it uses about a 1/3 less voltage when being used so it would be about a 1/3 more effeciant on how long it will last? Is that what you were saying?

Yes and no. But if I wanted to be pedantic about it, mostly no

The milliamp-hour rating of the battery doesn't change. If you have two batteries rated for 2 amp-hours (2000mAh) wired in series, the circuit has a total capacity of 2 amp-hours. Changing the load or the efficiency of the regulation doesn't change the capacity. Just like if you have a car with a 15 gallon fuel tank that gets 20 miles to the gallon, and you stick a more efficient engine that gets 30 miles to the gallon in it, the fuel tank still holds 15 gallons. You just get more miles out of a full tank.

So how many miles hours will you get out of a full tank battery with this car mod?

It depends on how it's regulated. Since it's using the original factory-built regulation circuitry, and only a totally clueless factory wouldn't use a switching regulation circuit, we'll assume that it does. Most 5V mods currently available use linear regulators, which are nice and simple but woefully inefficient. They waste any excess voltage as heat. The tekkeon uses a switching (PWM) regulator (probably), so it's likely getting 90% efficiency or more. Lets assume 90% to be safe.

Stand back, I'm about to do math.

5V / 2.3ohms = 2.17A current draw

2Ah capacity / 2.17A * .9 (efficiency) = .83 hours of vape time.

Now, that's .83 hours (~50 minutes) of actually holding the button down. Even the most hardcore vapers have to pause for breath every once in a while, so the MTBR (mean time between recharges) will be much higher.

For comparison, a regular 3.7V mod using a single 2400mAh 18650 will net you 1.5 hours of constant vape time:

2.4Ah / (3.7V / 2.3ohms) = 1.5 hours

So if we assume a chain-vaper gets 48 hours MTBR with a 3.7V 18650 mod, you can assume the same vaper will get about 27.84 hours MTBR with the tekkeon:

.83 / 1.5 = .58 (ratio of on-time for tekkeon to on-time for regular 18650)

48 hours * .58 = 27.84 hours MTBR

---------------------------------------------------------

TL;DR - If you get at least two days on a 3.7V 18650 mod you'll get over one full day with the tekkeon.

 

[candre23]

I could explain further, but not without making it even more complicated.

If there are discrepancies between the numbers and reality, it's due to some of the necessary assumptions being inaccurate and/or the given battery data being inaccurate or inapplicable in this setup. There are a lot of variables involved, and some of them (specifically mAh ratings) can vary based on application. And that's even assuming the numbers printed on the batteries are accurate under any situation.

In other words, it's entirely possible that you're getting four full days MTBR regardless of the numbers. But if we had access to accurate data, the method I demonstrated above would be how you could get some mathematically sound run-time estimates.

 

[GoodDog]

Great review Clumsy!! I know what I'll be saving my pennies for. hehe

 

[chev327fox]

Here is a video to show it to you guys!!!!!


YouTube - Tekk Mod by chev

 

[Bjorn Toulouse]

I could explain further, but not without making it even more complicated.

If there are discrepancies between the numbers and reality, it's due to some of the necessary assumptions being inaccurate and/or the given battery data being inaccurate or inapplicable in this setup. There are a lot of variables involved, and some of them (specifically mAh ratings) can vary based on application. And that's even assuming the numbers printed on the batteries are accurate under any situation.

In other words, it's entirely possible that you're getting four full days MTBR regardless of the numbers. But if we had access to accurate data, the method I demonstrated above would be how you could get some mathematically sound run-time estimates.

agree, is it PW regulated? or is it just stepped down?

 

[clyde2801]

I could explain further, but not without making it even more complicated.

If there are discrepancies between the numbers and reality, it's due to some of the necessary assumptions being inaccurate and/or the given battery data being inaccurate or inapplicable in this setup. There are a lot of variables involved, and some of them (specifically mAh ratings) can vary based on application. And that's even assuming the numbers printed on the batteries are accurate under any situation.

In other words, it's entirely possible that you're getting four full days MTBR regardless of the numbers. But if we had access to accurate data, the method I demonstrated above would be how you could get some mathematically sound run-time estimates.

You're already starting to sound like Mr. Data.... Nice looking, intriguing mod. What kind of 18650 batteries are in there, and what is the method for replacing them when the time comes? Is it user serviceable, or would it have to be shipped back to the manufacturer?

 

[candre23]

agree, is it PW regulated? or is it just stepped down?

Chev will need to confirm, but it is almost certainly PWM regulated. The battery pack is designed to power USB devices which need a steady 5V. It wouldn't work for its intended purpose if it wasn't well regulated.

What kind of 18650 batteries are in there, and what is the method for replacing them when the time comes? Is it user serviceable, or would it have to be shipped back to the manufacturer?

Everything is user serviceable, given a certain level of user competence.

As Chev explained earlier, the batteries have solder tabs. If you have soldering gear you could easily remove the current batteries and replace them. However, if you're not willing to apply a ~700 degree iron to batteries which are prone to explosion if overheated, then you can probably work something out with Chev.

 

[redgirl]

What happened to chev?

 

[beast775]

great explanation on the circuit.looks very neat for a mod.

 

[warlike36]

chev was banned after answering questions in regards to when they would be ready. Hope Im not next for answering your question

 

[warlike36]

From what I understand,he will be back as a supplier at some point.........I hope..cuz he is talented and has been a good friend.

 

[candre23]

chev was banned after answering questions in regards to when they would be ready. Hope Im not next for answering your question

See, this is the problem with the current system of supplier "vetting". Here's a guy who is simply answering questions about a mod in a thread about that mod. It's not like he was going around spamming in inappropriate threads/forums. If the rules prevent this sort of legitimate dispersal of information, than it's the rules that are wrong.

 

[WhatAClumsyGirl]

Well, still loving my Tekkie ! One other thing I forgot to mention...the Tekkie should be charged in the Off position unless you are vaping on it for a little while.

Mine is still going strong...loving this vape. Its durable and it lasts me for a few days before I have to charge it.

Great Job Chev on this mod ! I predict lots of orders for this mod

 

[Parky50]

Wow... chev327fox and Clouds of Vapor !!!

My little Parky Tekkeon Mod has come a long way...

 

[reverendg]

Wow!! that's a sleek looking mod. The video plays out like a 70's porno l.o.l but I still think I want one. What!!! I've Heard about porn

definitely looks like a trekkie tekkie though.

 

[North Shore]

That is one cool looking mod, and the batteries would definitely last on a long road trip.

 

[Elendil]

No worries. Chev is back. Just need to clarify where he can and cannot post as a supplier/manufacturer.