Is this too much for my battery...

[Tjalopy]

Trying to figure out ...I have a AW IMR 18650 2200mah (8.1Wh) battery....I have the doge V2 rda....If my Total Resistance is .5 across the coils (2), am I safe from venting the battery? Somebody said something about the wattage being an issue too....Any help is appreciated!

 

[bfitz]

Here is the website I use for ohms/amps/etc calculations. They also have a list of different battery's ratings.

Battery mAh & C Rating = amp Calculator

I am not a battery expert by any means so make sure to do more research but that might be a little low for that battery. If you plug in the numbers you are drawing 8.2 amps and, although they don't have the 2200mah battery listed, that is above the continuous draw of the next closest battery. I would recommend checking out some of the other batteries on that sight with higher amp limits. I have been using purple efest batteries lately and have been happy with them, although I never go below 0.5 ohms.

 

[Susan~S]

Hello and welcome to the forum Tjalopy. Glad to have you here!

Are you using a mechanical or regulated mod? Your battery is has a CDR of 20A's. A 0.5 ohm build will draw 8.4A. You are well within the safety parameters of this battery.

 

[Tjalopy]

it is the Fuhattan Mod from 88evape... mechanical

 

[msmith4512]

Check this thread http://www.e-cigarette-forum.com/fo...-discussion-safety-battery-info-warnings.html

You are within the safety limits of your battery at .5 Ohms in mech mod. But get at 35A battery if you want to go lower Ohms.

 

[Susan~S]

it is the Fuhattan Mod from 88evape... mechanical

Well then, to quote Baditude (our resident battery expert): "Read up. It's homework time!"

If you are new to mech mods and rebuildables I highly recommend you spend some time with Baditude (one of our resident battery experts) and visit his blogs. You are now 100% in control of your own safety (and others around you). Make sure you purchase an ohm reader and a voltmeter or DMM so you can measure your builds, check for shorts and measure the remaining charge on your batteries.

Baditudes Blogs. The blogs regarding mods and rebuildables are listed below:

BATTERIES

9. Battery Basics for Mods: IMR or Protected ICR?
* Another essential read to understand which batteries are safe to use in mechanical and regulated mods. Includes a frequently updated list of recommended safe-chemistry, high-drain batteries with their specifications.

17. Purple Efest Batteries Not As Advertised
* A cautionary blog that reveals that the purple Efest batteries may not have the specifications advertised. Also includes a commentary on "continuous discharge ratings" vs "pulse discharge ratings" of battery specs.

OHM'S LAW

14. Ohm's Law for Dummies (Vapers)
* My attempt at explaining Ohm's Law in layman terms and how it relates to vaping.

16. Explain it to the Dumb Noob: Ohm's Law Calculations
* As simple as it is to use, some people have a tough time grasping the concept. Warning: Includes graphic photos of mod explosions.

MECHANICAL MODS & REBUILDABLES

7. Information Resources for Your First RBA
* An essential read and reference guide for someone new to rebuilding coils. Includes a multitude of useful links on battery safety, mod safety, coil meters, coil building, and the differences in the three types of RBA's.

15. Inexpensive Mechanical Mod and RDA Setup
* A response to the frequently asked question on how to get into rebuildable atomizers with a mechanical mod inexpensively. Includes a list of commonly used tools and supplies for rebuilding and where to find them.

BATTERIES - WHERE TO BUY

Only buy batteries from a reputable supplier (not ebay or Amazon) as there are many counterfeit batteries being sold. Here are several reputable battery suppliers in the US.

* RTD Vapor
* Illumination Supply
* Lighthound
* Orbtronics

 

[Tjalopy]

Thank you all for the quick response...I will read what you sent me Susan-S....just wasn't sure about the wattage was too much or something?

 

[sparkky1]

Trying to figure out ...I have a AW IMR 18650 2200mah (8.1Wh) battery....I have the Doge V2 RDA....If my Total Resistance is .5 across the coils (2), am I safe from venting the battery? Somebody said something about the wattage being an issue too....Any help is appreciated!

It's the amp limit is what you need to educate yourself with that and ohms law....you do have an ohm meter ?
Battery drain | Steam Engine | free vaping calculators

 

[Tjalopy]

yes I have an Ohm meter....

 

[Tjalopy]

So running at .5 Ohms, The draw will be 8.2 Amps on a 20A battery... so I am well within the specs....AW batteries are true to specs for the most part?

 

[rurwin]

The maximum continuous discharge rate for that battery is 20A.
AW IMR 18650 2200mah 20A

At 0.5 ohms and a fresh battery, you are pulling 4.2/0.5 = 8.4A

You are therefore comfortably safe, and would be safe down to around 4.2/15 = 0.28 ohms (Using 15A rather than 20A as a margin of safety.)
As a battery ages its internal resistance increases, which means it's maximum current capability decreases. So stay well below the theoretical maximum and stop using any battery that gets warm.

The older 2000mAh AW batteries had a maximum current of only 10A, which is a bit too close to 8.4A for comfort. The 1600mAh ones though have a maximum current of 24A.

 

[Susan~S]

So running at .5 Ohms, The draw will be 8.2 Amps on a 20A battery... so I am well within the specs....AW batteries are true to specs for the most part?

AW batteries are great batteries and can be counted on running true to spec. Your first sentence is correct except for 1 corrections. It should read 8.4A not 8.2A. Typo on bfitz's post.

 

[sparkky1]

Where do you source your battery's ? AW has true specs, You want 15-20% headroom of the continuous rating

 

[Tjalopy]

I bought the battery from a brick and mortar store here in new york..that was the only brand batteries they sold.