charging 2 different batteries at once?

[iliketovapesafely]

I have a tenergy tx270 can I charge a provari battery and nemesis battery at the same time or should you always charge only one type of battery at once?

Also, I have an old battery that only holds a charge for like an hour worth of vaping I use as a backup for when my main battery is charging.. is it still safe to use?

When do you know when to throw an old battery out?

 

[Izan]

Yes.

Item #01270

• Designed to charge 1 – 2 pieces of Li-Ion 14500/18500/18650 batteries.
• Two independent charging channels for individual charging and detection.

ETA Please refer to batteries by their specific names (sizes)
A Provari can take an 18350/18500/18650 size battery.

 

[speedy_r6]

Also, I have an old battery that only holds a charge for like an hour worth of vaping I use as a backup for when my main battery is charging.. is it still safe to use?

if your old battery only holds a charge for an hour, i would toss it and get a new one. Batteries are cheap.

 

[BrotherBob]

Might like to read:
Guide to Choosing a Battery Charger | E-Cigarette Forum
18650 Battery Buying Guide for Vapor Users
(9) Battery Basics for Mods; the Ultimate Battery Guide | E-Cigarette Forum
(12) Deeper Understanding of Mod Batteries - Part I | E-Cigarette Forum

 

[ahawk65]

Like others said, you can charge two different brands at once.

if your old battery only holds a charge for an hour, i would toss it and get a new one. Batteries are cheap.

There is not harm in using it but if it only lasts an hour...you probably hate it.

 

[speedy_r6]

There is not harm in using it but if it only lasts an hour...you probably hate it.

Actually, there is a potential for harm. As a battery's capacity decreases, so does its C rating. Let's assume it was a 2500mah battery. If it was capable of delivering 20 amps when it was new, that means it had a C rating of 8C. If it is down to being a 1500mah capacity, it will still have the same C rating of 8C, which means it can only safely deliver 12 amps. That can be a significant risk.

 

[ahawk65]

Actually, there is a potential for harm. As a battery's capacity decreases, so does its C rating. Let's assume it was a 2500mah battery. If it was capable of delivering 20 amps when it was new, that means it had a C rating of 8C. If it is down to being a 1500mah capacity, it will still have the same C rating of 8C, which means it can only safely deliver 12 amps. That can be a significant risk.

This makes sense. Is there a way to easily test a C rating so the OP could verify?

 

[speedy_r6]

No real easy way that I know of unless he can measure the actual capacity the cell still has. The C rating is always the amp limit divided by the cell capacity(amp limit/cell capacity=C value...cell capacity is mah/1000). Since we only know the capacity and amp limit when new, we have to get the C rating based on those numbers. From that point forward, the best estimate for amp limit is to multiply the current capacity by the C value. If you have no way to test and measure the capacity, you are basically just taking a shot in the dark at the amp limit. I know I personally don't have any equipment to measure the actual capacity of a cell, and I imagine most people don't, either.

If he has the tools to measure it, then he just needs to do the math listed and it can be found pretty easily.

@Baditude should be able to shed some more light on this.

 

[ahawk65]

Some chargers exist that show how much power is pumped into a battery. If one were to use it until it was "drained" (one hour in this case), and then charged it, and then noted the mAh and performed the above calculation..would it be close? I know you're obviously not going to take a battery down to zero, but would this give a close idea? Thanks for your help

 

[speedy_r6]

It would be enough to give a rough estimate. Wouldn't be precise, but I think it would actually be giving a lower number than the real number since the capacity pumped in would be less than the full capacity due to the cell not being ran down to totally empty. How much lower all depends on what kind of device it was used in. I know my RX200 kicks the batteries out at around 3.4v as being fully drained. I know my Sig 150 would say they were fully drained at about 3.2v. Obviously, if I used the same batteries in those two, the batteries used in the sig would say they had more capacity than the rx simply because the sig lets them drain a little further.

 

[daviedog]

The very fact that the battery wont hold a charge makes it a liability. Particularly in a mech. Trash it..

 

[Baditude]

I have a tenergy tx270 can I charge a provari battery and nemesis battery at the same time or should you always charge only one type of battery at once?

Also, I have an old battery that only holds a charge for like an hour worth of vaping I use as a backup for when my main battery is charging.. is it still safe to use?

When do you know when to throw an old battery out?

Provari's and Nemesis are both mods that use the same kind of battery. The batteries are lithium ion batteries (Li-ion). Lithium ion batteries are also sub-classed as either IMR or INR batteries, depending upon their chemistry makeup. The batteries used are not specific for the individual mods, meaning there are not specific batteries for Provari's and not specific batteries for the Nemesis. You are probably using one "brand" in the Provari and another "brand" in the Nemesis.

Deeper Understanding of Mod Batteries Part 1

• For those who want to learn the differences between IMR, IMR/hybrid, ICR, and LiPo batteries. What do those numbers and letters on batteries mean? What's an amp rating and why is it more important than the mAh rating when choosing a battery for vaping?

To answer your first question, you can charge different brands and models of batteries in a charger simultaneously.

Your battery which doesn't hold a charge should be discarded. It could be dangerous to use in your mechanical mod (the Nemesis) because not having protection circuitry you could over-discharge the battery. The Provari, being a regulated mod with protection circuitry, would refuse to fire the coil if the battery held an insufficient charge.

When should you replace a battery?

Since it is obvious that you are new, I recommend that you read the following:

A Beginner's Guide to Your First Mechanical Mod​

• Covers the differences between a mechanical vs. regulated mod, essential safety accessories, optional safety accessories to add layers of safety to your mech, routine maintanance, use of proper batteries, proper ventilation, low resistance vaping, and faux hybrid mods.

Battery Basics for Mods: The Definative Battery Guide for Vaping

• A popular and 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.