more power to electric outboard motor

[Tero]

Hello

I bought an electric outboard
motor to my rowing boat.
Motor is made in Russia. As
you all can guess the thrust
isn´t wery good. It´s poor.
Motor works normally with 12v.
battery, and I was thinking if
it can handle two
12v. batteries in series.
Voltage and current would then
rise to double.
If the motor doesn´t break it
will go faster, right?
What do you think?
Can the motor handle the extra
12volts or will it break?

thanks.

 

[Bob]

Break!

 

[Tero]

Hello

I bought an electric outboard
motor to my rowing boat.
Motor is made in Russia. As
you all can guess the thrust
isn´t wery good. It´s poor.
Motor works normally with 12v.
battery, and I was thinking if
it can handle two
12v. batteries in series.
Voltage and current would then
rise to double.
If the motor doesn´t break it
will go faster, right?
What do you think?
Can the motor handle the extra
12volts or will it break?

thanks.

addition:
Motor has no speed control so there is only wires to the motor and the
on-off-switch in the between.
So the motor will burn? wires and switch are easy to change to bigger.

 

[Ed Price]

Hello

I bought an electric outboard
motor to my rowing boat.
Motor is made in Russia. As
you all can guess the thrust
isn´t wery good. It´s poor.
Motor works normally with 12v.
battery, and I was thinking if
it can handle two
12v. batteries in series.
Voltage and current would then
rise to double.
If the motor doesn´t break it
will go faster, right?
What do you think?
Can the motor handle the extra
12volts or will it break?

Motor is submerged (?), so it likely will not incinerate itself. BUT, much
shorter brush life, brush holders will run hotter, so maybe they will fail,
or maybe the brush springs will lose strength. Also, more load on the shaft
bearings, so they will not last as long either.

If, due to sloppy manufacture, you have a poor internal wire connection,
then this may be the first point of failure. Next most likely is the brush
structure or the brushes themselves. Possibly, the motor winding heat may
degrade the wire insulation, hastening a short (either turn-to-turn or turn
to frame).

The non-technical answer is that, yes, doubling the voltage will kill the
motor. How, and how soon, is difficult to say. It may last 2 years or 20
minutes. You are quite right, "if it doesn't break, it will go faster." And
it will go faster until it breaks. And need I add that Russian consumer
products are not, uhh, highly respected to begin with?

Ed