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edited Jul 8, 2013 at 21:08

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what i What do I need to power a 20v 3amp20V 3A device with dusing "D" or aa"AA" batteries?

I'm going to try and build my own batteerybattery pack for a portable speaker. It uses 20 volts and 3ampere3 ampere as input and. I realize iI will burn through quite a few batteries if trying to power it willwith just AA or even D type batteries. thatsThat's not a problem, the problem is that I'm a bit rusty when it comes to my electrical knowlegdeknowledge.

What iI would like to know is if iI need some kind of regulator for something like this, or if it's enoughtenough just to keep below the 20volts20 volts and the device will automatically draw the right amount of amperes? ThisThis would mean that I could connect thirteen 1,5volt.5 volt batteries in serial to get roughly 19.5 volts out. or Or do I also need to paralellparallel connect those 13 to get the right amperes?

So, for you TL;DR people out there:

How would iI connect AA or D batteries (serial/parallel) to power my 20v20V/3amp3A device? Do Do I need some regulator type device for it, or is it savesafe if keeptkept below those values? If iI need some regulator/other for my desired setup, what can you recommend thatsthat's suitable for my situation?

Thanks in advance!

what i need to power a 20v 3amp device with d or aa batteries

I'm going to try and build my own batteery pack for a portable speaker. It uses 20 volts and 3ampere as input and I realize i will burn through quite a few batteries if trying to power it will just AA or even D type batteries. thats not a problem, the problem is that I'm a bit rusty when it comes to my electrical knowlegde.

What i would like to know is if i need some kind of regulator for something like this, or if it's enought just to keep below the 20volts and the device will automatically draw the right amount of amperes? This would mean that I could connect thirteen 1,5volt batteries in serial to get roughly 19.5 volts out. or do I also need to paralell connect those 13 to get the right amperes?

So, for you TL;DR people out there:

How would i connect AA or D batteries (serial/parallel) to power my 20v/3amp device? Do I need some regulator type device for it, or is it save if keept below those values? If i need some regulator/other for my desired setup, what can you recommend thats suitable for my situation?

Thanks in advance!

What do I need to power a 20V 3A device using "D" or "AA" batteries?

I'm going to try and build my own battery pack for a portable speaker. It uses 20 volts and 3 ampere as input. I realize I will burn through quite a few batteries if trying to power it with just AA or even D type batteries. That's not a problem, the problem is that I'm a bit rusty when it comes to my electrical knowledge.

What I would like to know is if I need some kind of regulator for something like this, or if it's enough just to keep below the 20 volts and the device will automatically draw the right amount of amperes? This would mean that I could connect thirteen 1.5 volt batteries in serial to get roughly 19.5 volts out. Or do I also need to parallel connect those 13 to get the right amperes?

So, for you TL;DR people out there:

How would I connect AA or D batteries (serial/parallel) to power my 20V/3A device? Do I need some regulator type device for it, or is it safe if kept below those values? If I need some regulator/other for my desired setup, what can you recommend that's suitable for my situation?