So what does that mean? I'm new to RC things. So I don't need to get a battery with a higher voltage? what do I need to get?Your motors will be running in parallel.... so you'd double the capacity ( mah ) you'll need, not the voltage.
So what does that mean? I'm new to RC things. So I don't need to get a battery with a higher voltage? what do I need to get?
oh i see, thank youIt's not so much just an RC thing... it's a battery thing ( electronics )... which a lot of things use.
Batteries are rated with a few different specs... Primarily voltage and capacity ( mah or milli-amp hour )... mah is sort of like how big the fuel tank is, so think of it as how long it can run, voltage is what pressure it ( the fuel, electricity in this case ) is delivered. Another is amperage which is like what amount of current it has ( the volume of fuel that can be delivered at a time ). Wattage is the amount of power the voltage and amperage can deliver.
So what you get is a battery with the voltage that is recommended for the motor ( s ) and has a high enough capacity ( mah ) so it will run how long you want ( within reason since the weight increased with capacity ) and that can deliver at least as many amps as is needed.
so if the voltage is 7.2 and that runs the 2 motors would adding another 2 motors require it to put out more voltage you run all the motors at the same speed as before?It's not so much just an RC thing... it's a battery thing ( electronics )... which a lot of things use.
Batteries are rated with a few different specs... Primarily voltage and capacity ( mah or milli-amp hour )... mah is sort of like how big the fuel tank is, so think of it as how long it can run, voltage is what pressure it ( the fuel, electricity in this case ) is delivered. Another is amperage which is like what amount of current it has ( the volume of fuel that can be delivered at a time ). Wattage is the amount of power the voltage and amperage can deliver.
So what you get is a battery with the voltage that is recommended for the motor ( s ) and has a high enough capacity ( mah ) so it will run how long you want ( within reason since the weight increased with capacity ) and that can deliver at least as many amps as is needed.
so if the voltage is 7.2 and that runs the 2 motors would adding another 2 motors require it to put out more voltage you run all the motors at the same speed as before?
oooh i see, and the capacity can be as high as I want it to?Think of it more like gas for a car/truck etc...
If it has one engine and that engine runs regular unleaded gas... so it uses 89 octane gas. If you have two or four engines... they still use the same gas.
Having more engines, you would want to probably have bigger gas tanks also. This is where you'd ( with a battery pack ) want to have a higher MAH.... since that represents the capacity of the battery.
No, I was actually planning on adding motors, the boat I have is a simple boat that turns on propeller speed, I'm just adding two more motors wired to the other motors. Really the only thing I could mess up here is the battery which is why I asked help on here and then accidentally buying the wrong propeller shaft/rod.I hope this is just a hypothetical question... since you can't just add a motor/engine to a craft ( car, boat, airplane, heli etc ) without all of the the other engineering and technical issues that are involved. That amount of info requires a lot more knowledge than what a beginner will have to properly implement without causing other problems.
If you are building or getting your first boat ( or other craft ).... stay with the original specs and recommended equipment. Trying to overspec something is for advanced users only and even then, they will often make mistakes that will cause them to have to re-engineer the whole project to meet their intended goals.
oooh i see, and the capacity can be as high as I want it to?
so if I have a battery that is 7.2 volts 1400mAH should I try to get one with 7.2 volts and 2800mAH?No... the capacity is still limited to what the craft can handle... none of this comes without a cost and consideration in other areas.
why would the controller need to be changed?If the boat is using standard brushless motors... each motor will require their own ESC to control them. If it's a brushed motor/controller... the controller will still need to be changed out to handle the additional amperage load that adding anything to it ( more motors, bigger motors, faster motors all increase amperage requirements )
It would probably be better to go with a bigger/faster motor/prop than to add an additional motor/esc with the added weight of bigger batteries... but even all of that will depend on the displacement of the hull and how it will handle that additional load... not to mention how all of this will affect the balance of the craft in the water.
And those are just some of the issues I can think of off the top of my head.
so if I have a battery that is 7.2 volts 1400mAH should I try to get one with 7.2 volts and 2800mAH?
why would the controller need to be changed?