1. I have 2 Sony VTC4 18650 and the specs are as followed:
- Typical Capacity: 2100mAh
- Min Capacity: 2000mAh
- Max Continuous Discharging Current: 30A
- Discharge cut-off voltage: 2.5V
- Voltage: 3.8V
- Full Charge Voltage: 4.2V
Now I am just wondering what these specs mean exactly. And if i was to input Volts, amps into a ohm calculator which one of these would I put in.
2. My Smok X Cube 2 is said to be wired series for batteries, so my next question is do I combine each batteries amps and volts into the ohm calculator?
Thank you so much for anyone who even looks at this post
Hi welcome and make sure thank your gf for picking you up some nice gear.
For 1
Typical cap 2100 mah: When putting an average load on this battery you can expect to be able to draw 2.1amps for an hour or 4.2A for 1/2 an hour etc.
Min cap 2000mah: When putting more extreme loads on the battery this will be slightly reduced to 2A for an hour. So if your ecig would pull 20A, you could expect it to be empty after pressing the fire button for 6 minutes.
Max cont discharge current: The battery can be discharged safely with a max current of 30A. It might be capable of doing higher currents for short periods but this is not advised.
Discharge volt cut off: A battery's voltage drops during usage. Typically 18650s start around 4.2Volt and the battery will stop supplying energy at 2.5V after which you need to charge it. So you can't draw a battery 'empty'.
Voltage: Average voltage. 3.8V is a half full battery or somewhere between full (4.2V) and fully empty (2.5V). (Voltage drops fast when the battery is getting low. Hence the average is not in the middle between 4.2 and 2.5)
If you want to do calculations with an ohms law calculator, you need to provide two values for it to work. Most of the time people want to calculate if the coil they are putting on their mod is safe for the mod and batteries.
So they put in the voltage (4.2V =full battery) and the resistance of their coil, say 0.4 Ohm, to see how much watts and amps they would draw from the battery. As you've seen your batteries are rated to 30 amps max discharge so you would be on the safe side. (You can do the calculation). On top of that, I think your mod takes 2 batteries so you'd be really on the safe side. Read up on parralel vs serial battery usage and safety tips. People like batitude and mooch wrote whole blogs. Just search here on the forum.
2 first to answer you, no you don't but read up on batteries as stated above. Too much to type it all out here.
For safety for now until you do fully understand your mod and ohms law, stick to the single values. 4.2V and 30 amps max discharge for your calculations and you should be alright. (Which is plenty to play with don't worry)
