Eighteen 18650 cells ain't gonna fit "in your pocket," in series, in parallel, or any combination there of. It'd take a "bag of holding to do that. They are, unfortunately, only fictional and not available in the real world.
@VioAriton Yes, in the sense that switching any electrical circuit on and off will create electromagnetic waves. No in the sense that your circuit will not create waves of the proper frequency in the proper pattern for your RC receiver to pick up and understand.
Simply: That circuit is not a replacement for the transmitter that goes with your RC car.
Anything RF is a huge "can of worms" - the details get complex very quickly. Wouldn't it be easier to use a ready-made solution which is known viable? Something like duckduckgo.com/?q=RF+module&ia=about ?
Not trying to dissuade you from learning about RF, but the subject is quite complex and quite extensive. It doesn't lend itself to being tutored well at all.
@W5VO Well I didn't think I needed to include that I have BMS modules for the batteries since I thought batteries and BMS automatically go together so. But I do have a BMS for the batteries.
I have looked for something that does what I want but it is way more expensive and bulky than what I want and can make. If you get what I'm saying. It is more bulky and more expensive than what can be built for cheaper. My speaker is going to be see through. And that's the difference. The ones I have found are ridiculously priced for what you get and I don't want to waste my money on that if I can make it better for cheaper.
@W5VO That's why I originally said a large jacket pocket. It would normally be put into a backpack, but if carried to a place away from the backpack and a backpack isnt needed it would be put in a large jacket pocket
My question is how can voltage be raised while current is dropped? My question stems from my welding machine. My machine at full power without any resistive load outputs 360 amps (it does have some resistance that I have put into it but that is besides the point) with 25 - 26 volts output. (It has 41.2 volts without load) What length or size of coil should I use to get an output current of 95 - 105 amps?
It sounds like you want a boom box, but more portable.
Portable speakers come in many different sizes. There are many out there. I'm confident there are some available for what you're looking for within your budget.
@adamaero Oh I thought he was talking about a BMS. (In the last message)
The machine question is different from the speaker question I've asked. So just as a heads up. :)
I just saw the link you sent. I like the speaker in the link. But 30 hours is a little short for what I'm looking for. And the loudness is a little below what I want. I'm looking for at least 50 watts and loud enough that it can be used in a loud setting. I'm looking for at least 50 hours runtime at full power.
I will definitely save that speaker in my lists, but for what I want to have it is a little short.
@JRE Huh, never knew a "bag of holding" was a thing. It was an interesting read. :)
