batteries for my.nemesis

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im_coryy

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Im lokking for the best safest batteries for a.nemesis I just bought. I know nothing about thay what would you recommend? If I buy imr or whatever (I herd they wre chemically more stable) would I need a 2 cent fuse to go with it? I herd they had the protection built into it?

Lastly how long would they last? Similar to a cell phone? You just toss em when they dont hold a charge anymore?
 

p7willm

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A mechanical mod is just a battery holder with a switch.

You can have an atty with too low an impedance or a short somewhere. This will allow more electricity that the battery can produce to flow. This will cause the battery to get very hot. This can, not usually, cause the battery to explode, vent hot gasses, more common, or just fail.

The fuse will go before bad things happen to your battery so you will not be picking melted bits our of your mod.

Cell phone batteries are pretty much the same as the ones in a vaper. After hundreds of recharges they do not work as well as they did and it is time to replace them.
 

Cloud Junky

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For a mech mod I would go with a vtc4 2000mah or a vtc5 2600mah battery. Both are 30amp limit which are good even if you don't plan on sub ohming. Just good batteries and sony make good products.

This is the best advice for a mechanical mod, it will support any legitimate setup.
 

John_

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For a mech mod I would go with a vtc4 2000mah or a vtc5 2600mah battery. Both are 30amp limit which are good even if you don't plan on sub ohming. Just good batteries and sony make good products.
The sony VTC4's and VTC5's are the best 18650 batteries for mechs at the moment. They have one of the lowest internal resistances (which is good), they are capable of discharging at 30A continuously (much more than a normal atomizer will need) and they have a decent capacity.
 

Credo

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Im lokking for the best safest batteries for a.nemesis I just bought. I know nothing about thay what would you recommend? If I buy imr or whatever (I herd they wre chemically more stable) would I need a 2 cent fuse to go with it? I herd they had the protection built into it?

Lastly how long would they last? Similar to a cell phone? You just toss em when they dont hold a charge anymore?

Go for the Sony VTC5 if you can. Great battery for the money, and has a great C rating. In fact, if you're not going to run a fuse or Kick, I wouldn't settle for anything less than a 20 amp battery. The VTC5 has what you need for a mech mod in spades.

Note: The Nemisis style mod does not have a compression spring or fuse built in. If you go for any of the 10amp or less batteries please use a fuse of some sort. (2 cent, or make something out of a 10amp car fuse)

If you're interested in shorter batteries (18500/18490 or 18350) AW brand is the way to go. I'd recommend cutting your teeth on an 18650 until you know what sort of build you'll be running. Also with the smaller batteries, I highly recommend some sort of fuse to protect yourself against shorts.

How long they last will depend on how hard and often you hit them. Provided you don't over-drain them (below 3v under load) they should give you at least 300 charge cycles...probably more. If they stop taking a full charge (to 4.2v) that's a good sign it's time to dispose of the cells and replace them.

Be aware of battery over drain. It'll take a few days to get an idea of how it feels/vapes when it's time to swap batteries. If you're not confident about that feeling, test it out for a few days with a meter every so often and put yourself on a schedule...swap batteries whether you need to or not. Charging them too soon will not harm them at all, however, vaping them below 3v (under load...so it might be more like 3.5v out of the mod) could damage the cell (reverse polarization).

If you're not using a fuse...your only safety valve will be an unusually warm/hot mod. The good news is that with the Sony battery it should take several seconds of a dead short to put it into a dangerous runaway failure...just be mindful if your mod gets unusually warm at any time! If that happens, let off the button...set it in a safe spot to cool, and inspect/test every inch of the mod/battery before using again.

If you ever drop a mech...get in a habit of inspecting it, and at least giving it a few test fires AWAY FROM your face before continuing use.

Get in a habit of testing your batteries regularly before and after charging. Don't over-charge them...4.2v is the MAX. If you get more...adjust or try a new charger.

If they ever show 'negative' voltage, don't put it on the charger...that means the battery was over-drained and has reverse polarized...replace such cells asap.
 
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porkchopbun

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I tried sticking a Panasonic 18650 2900mAh High Drain NCR18650PD in my nemi and it immediately got hot. Is this because it's at 10 amps? TIA

What was your topper build (ohm, resistance)?...or if there was no topper (atty), there is probably short some where causing it to fire...It's usually negative pin too high ...
 

KC33

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What was your topper build (ohm, resistance)?...or if there was no topper (atty), there is probably short some where causing it to fire...It's usually negative pin too high ...

I'm using a KFL at 1.4ohms. I pulled it off my SID which it works fine on. I put it back on the SID after the incident with the Nemi.
 

porkchopbun

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I'm using a KFL at 1.4ohms. I pulled it off my SID which it works fine on. I put it back on the SID after the incident with the Nemi.

* Just want to make sure, it's not firing on it's own when you connect the Kayfun to Nemesis
* If yes: readjust your 510
* Check for any cuts on the battery plastic, the exposed battery might be touching the metal inside the tubing of your Nemesis causing a short
* do you have another battery to test with Nemesis with
 

KC33

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* Just want to make sure, it's not firing on it's own when you connect the Kayfun to Nemesis
* If yes: readjust your 510
* Check for any cuts on the battery plastic, the exposed battery might be touching the metal inside the tubing of your Nemesis causing a short
* do you have another battery to test with Nemesis with

It's not firing on it own but I do have another battery so I'll try that now. Thanks!
 

KC33

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I stuck the other battery in and it worked fine. I tried both KFLs and they worked then I tried the other battery that got overheated and it worked. Thanks for your help, I really do appreciate it.

I ordered a couple of VTC's and AW 350's so after I clean the contacts and have 30 amps instead of these 10's I'm pretty sure it will be hitting real good.
 
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