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.