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View Full Version : electric winch: 9500lbs


Go the Nissan
07-09-2004, 06:54 PM
Hey guys need confirmation.

A salesman from a huge chain store said i'll get 30mins of winching time with the car ignition off.

My jaw dropped lower than my balls when i heard that.

As i'm looking at buy an ox 10 000lbs with the 5.5 hp motor which is bigger again, just want feedback from people who has a winch and used one.

I always thought i'll be lucky to have 30 secs to winch with when the ignitionis off.

BLU-125
07-09-2004, 11:27 PM
You are a LOT closer than he is!

HDJ105
08-09-2004, 08:35 AM
Hey guys need confirmation.

A salesman from a huge chain store said i'll get 30mins of winching time with the car ignition off.

My jaw dropped lower than my balls when i heard that.

As i'm looking at buy an ox 10 000lbs with the 5.5 hp motor which is bigger again, just want feedback from people who has a winch and used one.

I always thought i'll be lucky to have 30 secs to winch with when the ignitionis off.


You'll get a lot further than 30 secs, but I'd doubt 30mins.

Obviously this depends on a number of factors, eg. size of battery, weight of vehicle, load on winch, number of cable layers on the winch drum, etc, etc.

As a guide, a Warn XD9000 4.6HP winch, pulling 3600kg on the first drum layer draws 415amps. (www.warn.com)

If you only have say a 100amp alternator, then with the engine running the alternators only going to supply near a quarter of the winches demand, the other 75% is coming from the battery! And even that's based on the alternator running at 100% capacity which it likely won't (temperature, engine speed and electrical demand from other components play a part in that).

Although I've never tried it, I would guess with the engine off, you should get ~10 minutes of heavy use. Of course using a pulley block will halve the load on the winch and double the battery life in that instance.

I think the key to winching longer periods is to allow suitable rest periods for everything involved, ie. winch, battery and alternator. All will take a hiding, and it's not unusual to hear of someone cooking a winch motor on a w'end.

2 BRUTAL
08-09-2004, 12:50 PM
I agree with above. i've got 2 900cca batteries being charged for a 120amp alt. and i've winched hard non stop for 10 minutes, engine stopped, and have still had plenty in reserve if needed and had no problems starting again.
30 minutes would be really stretching it. totally different story at night time if you need some sort of lighting to see what you are doing.

08-09-2004, 12:58 PM
why would you want to winch with the motor off anyway, unless of course you had drowned the motor and had no other choice. dragging the batteries down with out the motor running will only decrease the life span of your battery

mickyd
08-09-2004, 02:01 PM
We did a recovery of a 4wd corolla ( says this laughing) up in the high country in my father in laws BJ40. He had an 8000lb winch and we had this operating for about 45 mins. ( Not continuously ) This was with the engine running, but the thing was that after about 15-20 mins of operating, the thermal protection cut in and no winching was acheivable until the unit had cooled down. This was during the day so there was no other load on the battery.

I think 30 mins continuous operation is a bit optimistic.

2 BRUTAL
08-09-2004, 03:33 PM
why would you want to winch with the motor off anyway, unless of course you had drowned the motor and had no other choice. dragging the batteries down with out the motor running will only decrease the life span of your battery

with mine being a carby motor some times you have no option when it won't run on a steep slope. it coughs and splutters that much it wouldn't be charging anyway. ruddy carby motors. ;D
it's ok as long as it doesn't stall, cause then it's a bugger to get started again. no worries restarting on the flat, just not steep slopes. :(

mickyd
08-09-2004, 03:59 PM
My father in law's Lux does the same thing on steep slopes.