The most electricity-batteries for 3.7v, 6.4v, 7.4v (for GGTS and not only)

[timofius111]

I'm going to buy a GGTS, and seriously puzzled by the choice of batteries. In GGTS without lengthening can obtain the following voltages:
3.7v
6.0v
6.4v
7.2v
7.4v
Also, there are four main types of atomizers:
LR
St
HV
VHV
To use all of them in full, in fact necessary to determine the three strains under the buyout, they will be optimally used.
I think the optimal allocation is:

LR - 3.7v
St - 3.7v
HV - 6.4v
VHV - 7.4v

In GGTS these stresses can be obtained as follows:

3.7v:
1 x 14 500
1 x 14 650
1 x CR2
1 x CR123A
1 x 16 340
1 x 17 500
1 x 17 670
1 x 18 350
1 x 18 500
1 x 18 650

6.4v:
2 x 16 340

7.4v:
2 x CR2
2 x 16 340
2 x 17 280
2 x 17 340
2 x CR123A
2 x 18 350


Actually the question is: what are the batteries (the firm model) combines the highest electrical capacitance, quality, and the specified voltage to the standard size?

p.s. and another question: does the battery have to be "protected"?

 

[sailorman]

If the battery is an IMR battery (lithium manganese) it does not need to be protected as this chemistry is inherently safe.

If it is a Lithium-ion or Lithium-cobalt (ICR), it needs a protection circuit.

Be aware that LiIon and ICR batteries are longer than IMR batteries due to the PCB built in.

For the highest capacity LiIon, the 3100mah Panasonic 18650 is hard to beat. I don't have the model number, but you can find it at orbtronic.com and CalliesKustoms.com

The best IMR 18650 is the 2250mah Panasonic CGR18650CH

For the other sizes, you will have to see what is available. The best cells are made by Panasonic and Sanyo. Some of them are re-labeled with the AW label. Those are also very good.

There are really very few manufacturers of good batteries in the world. Everyone else just buys them and puts their own labels on them. Avoid the Trustfire and Ultrafire unless you can find no other battery of the size you need. Then, be sure it's protected.

Use the largest single battery you can and avoid stacking batteries whenever possible. Do not use 2 x CR2 if you can use 2 x 16340.

Some of your combinations are very long. For example, you could use 2 x CR123A for 7.4V, but 2 X 18650 would be a foot long. I think also that a CR2 is a 3.0V battery.

The problem I see is that it is hard to find a lot of those sizes from a good, reputable manufacturer. You are going to have to do a lot of hunting.

For 3.7V, I would stick with the 3100mah protected 18650 Pansonic or the 2250mah IMR panasonic CGR18650CH or the AW 900mah 14500 ICR or the 600mah 14500 AW IMR
For 6V, you have little choice but to use ***Fire CR2s. I know of no other 3V rechargeable.
For 6.4 and 7.4, you are probably going to be in the same situation of having to use a ***Fire. Just make sure they are protected. Always keep stacked batteries in pairs and check that their voltage is within 0.01V of each other.

 

[B4DJ1N64N]

For 6 volt you can get AW R123 LiFePo4 batteries. In general: try to get Panasonic or AW brands for your battery needs.