Protected mini reo batteries?

[lickwid]

Hey Guys,

I just bought a mini reo last night, and I see that you're suggesting AW IMR 14500 600mah batteries, and I'm wondering if I can use 14500 900mah ( These: $5.37 - TrustFire Protected 3.7V 900mAh 14500 Lithium Battery (2-Pack) - Batteries ).

I'm not a battery guy, and I couldn't find anything in here about it. I would rather use the protected ones because I already have them, but if I can't it's not a big deal.

Thanks!

 

[ancient puffer]

Someone will come along and correct me if I'm wrong, but my understanding is that you can use them. However, the AW IMR 14500 have a higher discharge rate (they can pump out more amps), and that does make a difference. I've used other batteries than the AW IMR, but they just don't work as well (for me).

And wecome to REOVILLE!

 

[lickwid]

Someone will come along and correct me if I'm wrong, but my understanding is that you can use them. However, the AW IMR 14500 have a higher discharge rate (they can pump out more amps), and that does make a difference. I've used other batteries than the AW IMR, but they just don't work as well (for me).

And wecome to REOVILLE!

Again, I'm not a battery guy, but wouldn't more amps, at a lower mah rating give you a battery that lasts a quarter of the time?

Thanks for the welcome

 

[mgaruccio]

The higher level of amps is needed to power low resistance atomizers. It's been a little while since I last had to deal with this stuff(high school physics class lol) but basically what determines the heat given off by the atomizer is the number of watts of power being delivered to it. Wattage is the voltage multiplied by the number of amps being applied and the number of amps that the circuit will attempt to draw is determined by the voltage and the resistance. so if you are running a 1.5 ohm atomizer and using a fresh battery at 4.2 volts you would be producing 12 watts which would require 2.8 amps of current, if the battery cannot supply this then the voltage will drop as the battery cannot supply enough current to the circuit.

to determine how much current a battery can supply you need to obtain the C rating which can usually be found on the product page(usually listed as the maximum discharge rate) and then multiply this by the batteries capacity in amp hours which then gives you how much current the battery can deliver under optimal conditions.

The issue with the trustfire batteries is that they have only a 1.5C discharge rating and are rated at 900mah (which many clam trustfire actually over-reports so it may actually be lower but well use that as our reference value) so they are only able to supply about 1.4 amps which if you remember the earlier calculations would only be half of what that 1.5 ohm atomizer was demanding, compare that with AW IMR batts that offer an 8C discharge rating at 600 mah which would allow you to supply 4.8 amps, which is more than enough for any setup that I currently know of.

If you use higher resistance atomizers this may not become a problem for you so if you would like to take a look at what kind of current you will need to supply your setup go to Ohm's Law Calculator and input your usual voltage (i recommend using 4.2 rather than 3.7 so you can ensure that you are able to get the full current draw even when the battery is fresh off the charger) and resistance and see what kind of current it will require, if it is below about 1.3-1.4 your batteries will be fine.

 

[lickwid]

*

Ok that does make some sense. So I guess I'll pick up some AW IMRs Thanks

 

[nerak]

Another thing to consider when buying batteries that are not the AW IMR 14500, is the length of the battery. Some batteries are longer and will cause more compression to the spring. The spring is a protection, set to collapse in case of a short. When it is compressed with a longer battery it has no where to go. You can run the risk of additional problems in case of a short.

 

[lickwid]

Another thing to consider when buying batteries that are not the AW IMR 14500, is the length of the battery. Some batteries are longer and will cause more compression to the spring. The spring is a protection, set to collapse in case of a short. When it is compressed with a longer battery it has no where to go. You can run the risk of additional problems in case of a short.

Ok, and since the ones I'm using are protected, that just means that they are less likely to short? Or does it help in that case at all?

 

[mlinky]

Yes and no. The protection board (pcb) should cut off the battery if it shorts, but if it is a bad pcb, then you have a very dangerous situation. The IMR's do not have a pcb, but are safer chemistry AND more capable of handling the stress from LR atomizers. http://www.e-cigarette-forum.com/forum/reos-mods/198503-why-aw-imrs-way-go-2.html#post3480552

If you are going to use a li-ion battery (IMR's are li-mn), use only a high quality protected battery like the AW or Panasonic.

Read this thread http://www.e-cigarette-forum.com/forum/ecf-library/129569-rechargeable-batteries.html

 

[lickwid]

Yes and no. The protection board (pcb) should cut off the battery if it shorts, but if it is a bad pcb, then you have a very dangerous situation. The IMR's do not have a pcb, but are safer chemistry AND more capable of handling the stress from LR atomizers. http://www.e-cigarette-forum.com/forum/reos-mods/198503-why-aw-imrs-way-go-2.html#post3480552

If you are going to use a li-ion battery (IMR's are li-mn), use only a high quality protected battery like the AW or Panasonic.

Read this thread http://www.e-cigarette-forum.com/forum/ecf-library/129569-rechargeable-batteries.html

Thanks for the resonse.

Under the Li-mn section of your second link it says:

"- Overcharging (>4.25 volts) will shorten the service life, which is 500 charges under ideal conditions.
- Discharging below 3.5 volts will shorten the service life.
- If you run a Li-Mn down below the minimum discharge voltage, the cell can be damaged. As there is no 'trip out' as with a protected Li-ion, this is a concern. "

Does that mean that I shouldn't leave them on the charger over night? and that I shouldn't use the battery until the reo doesn't fire at? or am I missing something here?

 

[mlinky]

Thanks for the resonse.

Under the Li-mn section of your second link it says:

"- Overcharging (>4.25 volts) will shorten the service life, which is 500 charges under ideal conditions.
- Discharging below 3.5 volts will shorten the service life.
- If you run a Li-Mn down below the minimum discharge voltage, the cell can be damaged. As there is no 'trip out' as with a protected Li-ion, this is a concern. "

Does that mean that I shouldn't leave them on the charger over night? and that I shouldn't use the battery until the reo doesn't fire at? or am I missing something here?

Yes. There is no rechargeable battery that you should leave on a charger unattended. Now most of the battery chargers have shut-offs that will not continue charging once the battery has reached 4.2v, but to be safe, you should take the batteries off of the charger when they are done. The most reliable charger is the Pila, and I have found no known instances of a Pila overcharging. Also, you will notice a decrease in the quality of the vape and want to change the battery before it actually dies. So, while you shouldn't over-discharge, you probably won't.

 

[harleybluz]

I am using these on my mini and it's a bit longer than the 600mAh. It's causing the switch to constantly stay on. I can vape whether it is on or off so I would say "no".