Well fellow vapers, soon to be vapers, and those that are just doing some light reading. Today I wanted to finish a quick post about the batteries that you may want to consider for use in your PV (Personal Vaporizer), APV (Advanced Personal Vaporizer) or battery pack. When choosing the proper battery this is one time that going cheap may not be the best idea. Like most things in this world all batteries are not created equally and as a matter of fact, some are not what they seem. I have spent about a week reading about how batteries work, how to calculate what they can do, how batteries are made and all other things battery related. I already purchased a few different batteries to try in the toys that I am happily reviewing for Wood Creek Vapory.
Before I go any further I have a few quick things I wanted to say. First I want everyone to know that I am not an employee of Wood Creek Vapory, so my posts are not written to help them sell products, they are written to help you the consumer make a informed decision about what you are purchasing. Second, to the staff at Wood Creek Vapory, thank you for everything you are some of the most professional, kind, and helpful people that I have ever had the privilege of meeting. Thank you for allowing me to post my thoughts on your website, it is a privilege.
So onto the batteries, I did not want to make this a complex boring post about the physics of the rechargeable battery. I want this to make it easy for you to decide on the battery you should purchase and use.
Protected vs. Unprotected
The primary difference between the Protected and Unprotected batteries is that the:
PROTECTED batteries have a small circuit board, typically on the bottom of the battery, that stops the charging or discharge of the battery in certain circumstances. Some of the circumstances in which the circuit include: Over-Charge, Over-Discharge, Short-Circuit, and in some cases, overheating. These batteries require special chargers that are specifically designed to charge lithium rechargeable batteries.
UNPROTECTED lithium batteries. They produce 4.2 volts of power when fully charged, then quickly fall to 3.6 volts output. They output 3.6 volts until they are mostly discharged, at which point the voltage falls rapidly. If they are discharged below 3 volts, they will be ruined and no longer usable. The user must be very careful not to let this occur. These batteries should only be charged in a charger specifically designed for them, as those chargers have a circuit that stops charging the battery when they reach 4.2 volts.
With that being said, it is important that you use PROTECTED batteries when possible and if you are using UNPROTECTED make sure your charger is designed to handle the batteries, ALWAYS I repeat ALWAYS verify that your charger is designed to charge the batteries you own before you start charging them. Charging the wrong battery in the wrong charger could cause a fire or melt wiring and damage your property or possibly cause a battery to explode.
What in the heck is mAh?
The mAh capacity rating refers to the storage capacity available for a particular battery. A battery with a capacity rating of 3000 mAh could deliver a current of 3000mA for one hour. Higher mAh ratings for the same battery type will generally mean longer run times. This does not apply when comparing different types of batteries. This means that you may not be able to predict how long your electronic device will run just by looking at the capacity rating of a battery. When powering high drain electronic devices like APVs, PVs, MODS, E-Cigs an alkaline battery will only deliver a small fraction of its rated capacity. For example AA alkaline batteries typically have a capacity rating of over 2,500 mAh and AA NiMH batteries have rated capacities of only 1,200 to 2,000 mAh. But when it comes to actually powering an electronic device like a APVs, PVs, MODS, E-Cigs the NiMH batteries will often run the device for three or four times a long. Even comparing the capacity ratings of similar types of batteries won’t often work since different manufacturers can measure battery capacity in slightly different ways. A NiMH or NiCd battery is likely to deliver much closer to its rated capacity when it’s powering high drain devices. (Information obtained from Allbattery.com)
WHAT TO REMEMBER – NOT ALL mAh BATTERIES ARE RATED THE SAME. Make sure you research more than just the mAh rating of a battery, later in this post I will show a chart of batteries so you can make your own decision.
Breaking Down the Battery Name
So we have been going into information about batteries, so now its time to explain what the name really means. So we IMR, ICR, 18650, 18350, 14500 etc. With all the letters and numbers it can get a little confusing. I want to make this easier to understand and easier to remember.
Breaking it down:
I = The battery is a Lithium Ion Battery Li-Ion
M = Manganese (Mn) is the positive ion for the battery
C = Cobalt (Co) is the positive ion for the battery
N = Nickle “Ni” is the positive Ion in the battery
F = Iron “Fe” is the positive ion in the battery
R = This is under debate Round or Rechargeable, I am leaning at round due to the fact that other batteries use the “R” designator for round and “F” for flat
18 = diameter of battery 18mm, making the first two digits the diameter in mm
650 = height in tenths of millimeters 65mm
850 = height in tenths of millimeters 85mm
In the below chart I am only referring to the batteries commonly used for vaping
|Battery Name||First Designator||Second Designator||Third Designator||Forth Designator||Fifth Designator|
|Battery Type||Positive Ion||Shape||Diameter in mm||height in tenths|
I hope that helps with getting the hang of that part.
High Drain vs. Regular
So now comes the discussion about high drain and what type is best for high drain INR, ICR, IFR or IMR and how can I tell if it is a high drain battery. I don’t want to get to crazy so I am combining a few things I learned from a few sources to help and I will let you draw from the information as you chose.
The IMR battery usually can handle up to 8.0C drain, which means the battery can output 8 times the capacity indicated on the label. As an example, an IMR 18650 battery with 2000mAh capacity can handle 8*2000 = 16000mah = 16amp. The Manganese chemistry is less volatile than the Cobalt chemistry, so most of this kind of batteries have no protection.
The ICR battery usually can handle up to 2.0C drain. so an 2400mAh ICR 18650 battery can output 2*2000 = 4000mah = 4.8amp. And most of this kind of batteries have the protection board built in the bodies since the Cobalt material has high volatility.
If you are using a mechanical mod, building a sub-ohm RBA, such as 0.3?, you want choose a 3.7V 18650 battery which can produce huge vapor, the IMR is the best choice for you! Here is a simple formula to calculate:
I(current)= U(Voltage) / R (resistance)
Now the R = 0.3?, U = 3.7V, so the I should be 12.3amp. Only IMR battery left for you to choose If you are using a VV/VW Mod, with a normal resistance atomizer, such as 2.4?
Some VV /VW mods have the currents limit, usually is 5A. the ICR battery is enough, and with the double protection (in battery and the mod), the ICR is more safer for you to use. If there is no currents protection in the mod, or the mod is only adjust the wattage, such as Itaste 134 (I don’t know if it has the currents limit). Here comes another formula:
P (wattage) = U (voltage) * I (currents)
As an example, you adjust the mod to 15W, and the voltage is 3.7V, So the currents should be 15/3.7 = 4.1amp, ICR battery is enough. So when you use the VV/VW mods, the ICR or IMR is all OK for you to choose.
See more at: (ECigator)
So without getting all boring and anymore drawn out I will conclude with this last piece of information
|Battery name and mah||Continuous Discharge Amps||Maximum Discharge Amps||C Rating||Safe Ohm to run|
|AW 14500 600 mah||4.8 amp||6 amp||8c||0.9 ohm|
|AW 16340 550 mah||4.4 amps||5.5 amp||8c||1 ohm|
|AW 18350 700 mah||6.4 amp||7 amp||8c||0.7 ohm|
|AW 18490 1100 mah||8.8 amp||11 amp||8c||0.5 ohm|
|AW 18650 1600 mah||16 amp||24 amp||15c||0.3 ohm|
|AW 18650 2000 mah||7.5 amp||10 amp||5c||0.5 ohm|
|Efest 10440 350 mah||1.4 amp||3 amp||8c||3 ohm|
|Efest 14500 700 mah||5.6 amp||7 amp||8c||0.8 ohm|
|Efest 16340 700 mah||5.6 amp||7 amp||8c||0.8 ohm|
|Efest 18350 800 mah||6.4 amp||8 amp||8c||0.7 ohm|
|Efest 18490 1100 mah||8.8 amp||11 amp||8c||0.5 ohm|
|Efest 18650 1600 mah||20 amp||30 amp||18.75c||0.3 ohm|
|Efest 18650 2000 mah||15 amp||20 amp||8c||0.4 ohm|
|Efest 18650 2250 mah||18 amp||20 amp||8c||0.5 ohm|
|Efest 26500 3000 mah||20 amp||30 amp||6.5c||0.5 ohm|
|Efest 26650 3000 mah||20 amp||30 amp||6.5c||0.5 ohm|
|EH 14500 600 mah||4.8 amp||6 amp||8c||0.9 ohm|
|EH 15270 400 mah||3.2 amp||4 amp||8c||1.4 ohm|
|EH 18350 800 mah||6.4 amp||8 amp||8c||0.7 ohm|
|EH 18500 1100 mah||8.8 amp||11 amp||8c||0.5 ohm|
|EH 18650 2000 mah||16 amp||20 amp||8c||0.4 ohm|
|EH 18650 NP 1600 mah||20 amp||30 amp||18.75 c||0.3 ohm|
|MNKE 18650||20 amp||30 amp||18.75c||0.3 ohm|
|MNKE 26650||20 amp||30 amp||18.75c||0.3 ohm|
|Samsung ICR INR|
|Samsung ICR18650-22P 2200 mah||5 amp||10 amp||4.5c||0.9 ohm|
|Samsung ICR18650- 30A 3000 mah||2.4 amp||5.9 amp||1c||1.5 ohm|
|Samsung INR18650-20R 2000 mah||7.5 amp||15 amp||7c||0.6 ohm|
|Sony US18650v3 2150 mah||5 amp||10 amp||4.5c||0.9 ohm|
|Sony US18650VTC3 1600 mah||15 amp||30 amp||9.5c||0.4 ohm|
|Trustfire 14500 700 mah||2 amp||4 amp||2c||2.2 ohm|
|Trustfire 16340 700 mah||2 amp||4 amp||2c||2.2 ohm|
|Trustfire 18350 800 mah||4 amp||6.4 amp||5c||1.1 ohm|
|Trustfire 18500 1300 maah||6.5 amp||8.5 amp||5c||0.7 ohm|
|Trustfire 18650 1500 mah||7.5 amp||10 amp||5c||0.6 ohm|
|NCR18650B 18650||3 amp||4 amp||1.1c||1.5 ohm|
|NCR18650PF 18650||5 amp||10 amp||3.4c||0.9 ohm|
|NCR18650PD 18650||5 amp||10 amp||3.4 c||0.9 ohm|
|NCR18650 18650||2.7 amps||5.5 amps||.5 c||1.6 ohm|
|any other protected 18650||3 amp||4 amp||1.5ohm|
|any unprotected 18650||5 amp||10 amp||0.9 ohm|
|sx22 18650||22 amp||29 amp||11 c||0.2 ohm|
Chart of C ratings vs size
These ratings are general guidelines taken from information on the internet and NOT all from the manufacturers.
1C or less for some Li-FePo4 Assume 1C for generic Li-ion unless otherwise noted 1.5C for ultra/sure/trust/-fire Li-ion 2C for AW ICR (Li-ion) 3C for BDL 10440 IMR (Li-Mn) 5C for BDL 14500 IMR (Li-Mn) 8C for AW 14500 and 16340 IMR (Li-Mn) 10C for AW 18650 IMR (1600mAh) (Li-Mn) 10C for AW Li-FePo4
Max drain rate in amps is C in mAh / 1000 x C rating
Example: an AW IMR Li-Mn 14500 battery has a capacity of 600mAh. The C rating is 8C (it can supply a load of 8 times the capacity). Therefore the max discharge current in amps is: 600 x 8 over 1000 (600 multiplied by 8 divided by 1000) = 4800 / 1000 = 4.8 amps
That should do it for todays little bit of information. Please post your questions and comments and I will do my best to answer