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How much horsepower do the 12v forklift motors that I see all over eBay put out? (Eaton, Baker, etc..)

I'm having a hard time finding the information, for the application that I'm looking at using one for, 10hp is MORE than enough (I could make do with as little as 5 even - not using it for a car, but rather as an inboard for my sailboat to get in and out of the Marina.. sorry I know this isn't technically relevant to this community, but I thought this Forum has the same intent/spirit I have, not blow money and not fill the air with smoke)

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How much horsepower do the 12v forklift motors that I see all over eBay put out? (Eaton, Baker, etc..)

I'm having a hard time finding the information, for the application that I'm looking at using one for, 10hp is MORE than enough (I could make do with as little as 5 even - not using it for a car, but rather as an inboard for my sailboat to get in and out of the Marina.. sorry I know this isn't technically relevant to this community, but I thought this Forum has the same intent/spirit I have, not blow money and not fill the air with smoke)
Hi Kar,

Forklifts rarely use 12 Volt motors. In the USA, 36 & 48 Volt systems are most common. In Europe 72 Volt systems are used. There are exceptions but 12 Volt motors are uncommon except on some pallet jacks.

http://www.diyelectriccar.com/forums/forumdisplay.php/electric-motors-37.html

I suggest you spend some time reading through the first two threads in the above sub forum.

There have been several members do EV boats. Look here: http://www.diyelectriccar.com/forums/forumdisplay.php/non-road-going-vehicles-41.html. After you read up a bit, that would be the place to start a build thread of your own.

Regards,

major
 

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HP = KW (watts) / 746

Example :
12v x 200 amps = 2400 watts / 746 = 3.21 hp

Controller and battery choice also are a factor.
Most small motor controllers start at 24v. Check out the stuff from 4QD https://www.4qd.co.uk/ or Alltrax.
A 12v motor will probably run fine on 24v as long as you limit amperage, therefore limiting total power.

I ran a 24v hyster motor on 36v for a go-kart, the limiting factor then is how much power can you dump in for how long and avoid heat build up ;)
remember, twice as fast for half as long ;)
 
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