BATTS AND AMPS ??!!? and avatars

[carleycrouse]

OKAY so i'm either being a complete dumb ass or my question is actually valid.

I'm building a mod and I just cant decide on THREE THINGS..

what batts do I use... I'm not too educated in the rankings of which batts are better and such I have just been using sony 18650 2100mAh

series.. or parallel ?

and finally.. how do I calculate the amperage that my batts will produce in series or parallel.. Like I understand the math and everything but how do I look at a batt and read it's label and say.. "hmm this is going to produce x amount of amps so I need x gauge of wire etc." LIKE AM I STUPID OR NOT?? cause yes I'm aware that there is mAh but when I move the decimal over to the thousands place it just seems way too low.. am I missing something? forgive me but I've tried to do research on this and all I found was a batt chart and calculator but I want to understand how to do it in my head

Please.. fellow people..

also.. how the hell do I change my avatar.. I cant find an option to let my upload one and I hate having this not avatar ape

 

[hazard93]

Worth asking, no matter how silly it may sound to yourself, at least you're trying to understand!

The batteries you have I believe are VTC4's, which are great, but there are many clones/fake's around. Did you buy them from a reputable vendor, and could you link us the page? It's important to insure they're authentic, otherwise it can be a big problem.

Series or parallel is down to yourself to decide, which you think you'll be able to take advantage of. Series will allow you to double the volts and mAh, whilst parallel will allow you double the amp. One battery amp, plus the other.

On most websites, it'll tell you the ''Continuous Discharge'' rate, this is the amps recorded at a constant charge. So if it says for instance ''30A Continuous Discharge'', then I know straight off the bat that I'll be save down to 0.3 ohms with enough headroom to be safe, pushing 0.2 ohms at the most.

Steam Engine - This calculator is very popular round here. If you're using a mech which I gather that's your intentions, all you do is the following..

• Resistance - Enter the resistance of the coil you wish to use, for example we will use a 0.3ohm build, so enter that.

• Volatage - With this, on a series box mod, the battery voltage is doubled. The standard battery voltage on a freshly charged battery is 4.2v, so 4.2v x 4.2v gives you 8.4v. If you're using parallel, then the max voltage will be that of one battery, 4.2v. For this example we will enter 4.2v into that box.

• The next 2 boxes do not need to be entered, they will automatically adjust.

You should now see that the ''Current'' is at 14A. This is the amp draw for a 0.3 ohm coil, in a parallel box mod! If you wanted the amp draw for a Series Box mod, all you'd do is double the voltage, and the ''Current'' will update itself!

I hope this made some sort of sense to you, or you find it somewhat helpful. I've tried making it as basic as possible, bare in mind it's 04:33 so I'm kinda sleepy!

 

[kermitthefog]

also.. how the hell do I change my avatar.. I cant find an option to let my upload one and I hate having this not avatar ape

If you go to forum settings (next to log out button) then down the left hand side you will see My Settings, and there is a link from there to change your avatar

 

[kaplan]

I addition to what hazard said if you going to stick to 18650s I would go for Sony VTC5s. They are hard to come buy and expensive but the best. The next best thing is Samsung 25Rs. Pretty much the same specs but almost half the price. The most popular and trusted eBay seller is Torcy. The other reputable dealer is Ecolux. I haven't bought from Torcy but my Ecolux batteries are bang on and I pushed them to their limits.
Also wiring batteries in parallel will allow you to build safely much lower than 0.3 ohms.

 

[carleycrouse]

Worth asking, no matter how silly it may sound to yourself, at least you're trying to understand!

The batteries you have I believe are VTC4's, which are great, but there are many clones/fake's around. Did you buy them from a reputable vendor, and could you link us the page? It's important to insure they're authentic, otherwise it can be a big problem.

Series or parallel is down to yourself to decide, which you think you'll be able to take advantage of. Series will allow you to double the volts and mAh, whilst parallel will allow you double the amp. One battery amp, plus the other.

On most websites, it'll tell you the ''Continuous Discharge'' rate, this is the amps recorded at a constant charge. So if it says for instance ''30A Continuous Discharge'', then I know straight off the bat that I'll be save down to 0.3 ohms with enough headroom to be safe, pushing 0.2 ohms at the most.

Steam Engine - This calculator is very popular round here. If you're using a mech which I gather that's your intentions, all you do is the following..

• Resistance - Enter the resistance of the coil you wish to use, for example we will use a 0.3ohm build, so enter that.

• Volatage - With this, on a series box mod, the battery voltage is doubled. The standard battery voltage on a freshly charged battery is 4.2v, so 4.2v x 4.2v gives you 8.4v. If you're using parallel, then the max voltage will be that of one battery, 4.2v. For this example we will enter 4.2v into that box.

• The next 2 boxes do not need to be entered, they will automatically adjust.

You should now see that the ''Current'' is at 14A. This is the amp draw for a 0.3 ohm coil, in a parallel box mod! If you wanted the amp draw for a Series Box mod, all you'd do is double the voltage, and the ''Current'' will update itself!

I hope this made some sort of sense to you, or you find it somewhat helpful. I've tried making it as basic as possible, bare in mind it's 04:33 so I'm kinda sleepy!

I just wrote down the things you said that I didn't already know
But no everything made sense besides the equation you used when speaking about continuous discharge. I understand ohms law is V=I*R but I tried to plug in your numbers and that just confused me because 30*.3=9 and 30*.2=6

I have yet to check out the calc but I'm in hopes of being able to use the formulas it uses on my head so I'm not dependent on having internet connection lol

Do you have any better recommendations on batts? And I bought mine from a local shop so I'm sure they're rewrapped

 

[carleycrouse]

I addition to what hazard said if you going to stick to 18650s I would go for Sony VTC5s. They are hard to come buy and expensive but the best. The next best thing is Samsung 25Rs. Pretty much the same specs but almost half the price. The most popular and trusted eBay seller is Torcy. The other reputable dealer is Ecolux. I haven't bought from Torcy but my Ecolux batteries are bang on and I pushed them to their limits.
Also wiring batteries in parallel will allow you to build safely much lower than 0.3 ohms.

Do you have any better recommendations on batts? I'm not sure which are best and etc. I just have the ones I have now because one friend told me to get them

 

[carleycrouse]

If you go to forum settings (next to log out button) then down the left hand side you will see My Settings, and there is a link from there to change your avatar

EXCELLENT

thanks man

 

[kaplan]

Do you have any better recommendations on batts? I'm not sure which are best and etc. I just have the ones I have now because one friend told me to get them

Minimum specs you should be looking for is 18650 3.7v 20A and the most popular capacity is 2500mAh.
As hazard mentioned we cannot comment on the batteries you have as we don't know where that are come from. Battery safety is important so try to get the best you can.
My favourite batteries are Samsung 25R and Sony VTC5. You can find these on above mentioned dealers and you would have the assurance of having genuine brands.

 

[hazard93]

I addition to what hazard said if you going to stick to 18650s I would go for Sony VTC5s. They are hard to come buy and expensive but the best. The next best thing is Samsung 25Rs. Pretty much the same specs but almost half the price. The most popular and trusted eBay seller is Torcy. The other reputable dealer is Ecolux. I haven't bought from Torcy but my Ecolux batteries are bang on and I pushed them to their limits.
Also wiring batteries in parallel will allow you to build safely much lower than 0.3 ohms.

Sorry mate, but VTC5's are far too risky for me to agree. Thing is, reputable vendors are having a hard time knowing if they have fakes or not. Far too many of them now. 25R have a 30 amp rating by torchy, which will be more then enough, so I agree with that one!

 

[MrTeaTime]

Minimum specs you should be looking for is 18650 3.7v 20A and the most popular capacity is 2500mAh.
As hazard mentioned we cannot comment on the batteries you have as we don't know where that are come from. Battery safety is important so try to get the best you can.
My favourite batteries are Samsung 25R and Sony VTC5. You can find these on above mentioned dealers and you would have the assurance of having genuine brands.

No one has genuine Sony vtc5's. They are an urban myth, a lot like the one that says that hazza1962 has a sense of humour.....it's just not true