I am planning my welding sheets… and i have a need for knowledge so here are some questions if you can help me i would greatly appreciate .

My firts motor will be xiongda so it takes 7 amps max i believe . But i build my pack for future setups that will probably require more continuous amps.

I have seen people make 120 amps continuous battery (i wonder what uses that but anyway)

i have vtc4 18650 cells and they can do 30amps so i could do in theory 120 amps battery if 4p.

Ill build 4p13s 48v.

Now i want to avoid building a battery of 20 amps and discover in 3 years that i need 50 amps and have to say « i wish ».

**Correct me if im wrong but 60 amps continuous should be fine right for most ambitious motors projects? Would a 60 amps batter be sufficient for most projects?If the setup asks temporarily more amps that 60 i would heat just a bit before coming back to 60 amps . I m trying to find the number of amp minimum so that i have a lot of possibilities for the future.**

Ok if i just use 7mm 0.15 stripes of 5amp each it just makes 20 amps for 4 links.

If i use 70 centimetre large full nickel sheet it makes 50 amps which is 10 less than 60

now how to allow more amps? In see three ways, which is the easiest and which should choose(cause there might be other considerations that i dont see since i am noob.

Providing i use a kweld and lipo battery.

**A) simply use a 0.20 mm thick nickel sheel 70cm wich allows 64 amps**

(note i will be my first spotwelding, i read 0.15 is easy buy 0.3 is difficult. how about 0.2 ? is it easily doable?. Is it findable 30mm wide 0.2mm thick sheet of pure nickel?)

B) add a second layer of 0.15mm(4 between each parallel groupe on top of a prior 0.15mm nickel complete sheet welded on the cells so that would allow 50 amps plus 20 =70 amps

c) overlap 2 complete sheet of 0.15 mm which gives 100 amps which might be overkill?

(note i will be my first spotwelding, i read 0.15 is easy buy 0.3 is difficult. how about 0.2 ? is it easily doable?. Is it findable 30mm wide 0.2mm thick sheet of pure nickel?)

B) add a second layer of 0.15mm(4 between each parallel groupe on top of a prior 0.15mm nickel complete sheet welded on the cells so that would allow 50 amps plus 20 =70 amps

c) overlap 2 complete sheet of 0.15 mm which gives 100 amps which might be overkill?

anything i should consider keep in mind?

tx