Ic3Ang3l ...
Νο.
Υοu wrong ...
This is a formula to calculate the Amperes of your device at the time you push the button:
https://liionwholesale.com/pages/regula ... calculator
But ... You should know the efficiency of your board.
For example ...:
- If the efficiency of your board is 90% and the 2 x 3.7 = 7.4 volts connection, then the current is ± 18.52 amps.
This load pulls the board out of your battery. Whether in a row or in parallel, it plays no role.
The Amperes wants to be the same.
--- The differences ---
* In serial connection, theoretically you have one battery.
Same capacity, same ampere ... but twice the current voltage.
* In parallel, the same amp ... but / 2.
That is 18.52 / 2 for each battery.
That's 9.26A from each battery.
What we see on the screen as power (Watts) is creation of the electronic circuit.
EVERYTHING you see on the screen is created by the electronic circuit.
Whatever battery or batteries you put on the device, the board asks for a quantity of power to generate the watts you requested.
If the battery is capable of recharging the amount of current, the electronic circuit wants to generate the watts you requested.
If the battery or batteries are out of power, the circuit will yield what can be expected from the battery or batteries.
If the board can not give this quantity, then it will not give you the watts you asked for.
High performance batteries can deliver the required electrical charge.
The issue is the duration that will be attributed to this power.
* The combination
- battery capacity
and
battery performance
will give the best possible result. *
In comparison between VTC5 and VTC6, even if VTC6 is capable of 15A while VTC5 for 20A, the larger VTC6 and the small difference in ampere performance eliminates differences and VTC6 ... becomes. ..more capable of maintaining VTC5 higher load.
--- Of course, VTC5 is an older one.
VTC6 is being built from 2014, but has so far improved.
The production of VTC5, if I'm not wrong, I think stopped in 2015 ...
So the comparison can be considered somewhat uneven.
Amperes - mAh ... ---
Based on some measurements I've made that VTC6 can deliver the highest 84W.
The duration of course what a joke ..... ....
What I saw through tests I have done is did a high performance 18650 Li-Ion battery of 20A can deliver 50 Watts from 4.20 V to ± 3.4 V, DEPENDING ON the efficiency of the circuit.
The differences today are very small, of course, between electronic circuits.
So as a Conclusion we have that for 100W of 2 x 18650, you are on the limit of their performance in terms of total power and duration performance.
If you ask for more Watts, you will see a weakness of 3.4 volts earlier.
If you require less Watts, you will see a longer duration and shutdown at 3.0 - 3.2 volts.
Depending on how many Watts you are requesting.
But what you see on the screen is not related to what is taking place between the battery and the board.
