spike proction with winch
Submitted: Monday, Dec 24, 2007 at 10:58
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Member - bungarra (WA)
G'day all.......I am getting conflicting advice from the "experts" re spike protection when fitting a winch.....Would appreciate some knowledegable comment
I have thrown out the Rotronics and the useless Odessy battery from under the bonnet.......with Rotronics connected there was a switch that had to be operated to isolate the start battery before you could get power to the winch...that meant the battery powering the winch was not being simultaneously fed by the alternator....hence no spike
vehicle electrics is now back to OEM stage.....Hilux 3.0L TD....single battery....at this stage I have not connected winch.
some sparkies tell me to simply connect because Vehicle's alternator is sophisicated enough to handle any surge with winch operating....others tell me I need to have spike protection
(of interest I have a cc 4.5L TD V8 on order and for the first time have included the Toyoya winch as dealer fitted........they tell me they simply hook them up on the single battery no problems.....this dealer is a large dealership supplying minesites etc and fit many
winches pre delivery and so obviously dont have any problems)
I will be fitting a dual battery after market to this new one .....but that is irrelevant to this spike question post on the Hilux as you are dealing with a different vehicle and different alternator
Thanks to all in advance and enjoy your xmas break....for those that get one !
Reply By: Member - Olcoolone (S.A) - Monday, Dec 24, 2007 at 20:59
Monday, Dec 24, 2007 at 20:59
Bungarra, not so much a problem with alternators as it is with ECU's.
A ECU may be able to withstand a surge for example 20 times with no problem and the the 21st time it will destroy the ECU, an ECU is pretty robust and can handle alot however with any elctronic gear it can only handle so much.
We use relays with surge protection as the EMF from a simple 12 volt relay can be upto 4000 volts or more when the coil dengizers.
Have never been warned about
winches causing a problem but anything that denigizes can cause a problem.
Starter motors don't have any protection for surges and a winch is just a starter motor with a cable.
I would give ARB and the maker of you winch a call just to be sure.
The other option is to get a Matson surge protector like the ones the use on there jumper leads, I think the cost about $70.00.
We use the Matson anti zaps for welding on vehicles, they are a square box about 100mm X 100mm and have 3B&S cable with two clamps and they sell for about $115.00 for the 12/24 volt ones.
Regards Richard
AnswerID:
278316
Follow Up By: Mike Harding - Monday, Dec 24, 2007 at 21:22
Monday, Dec 24, 2007 at 21:22
>A ECU may be able to withstand a surge for example 20 times with
>no problem and the the 21st time it will destroy the ECU
Why is that?
Mike Harding
FollowupID:
542348
Follow Up By: Member - Olcoolone (S.A) - Tuesday, Dec 25, 2007 at 10:32
Tuesday, Dec 25, 2007 at 10:32
This was used as an example a ECU very rarely fails wih the first spike, why do quenching diodes fail.
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Follow Up By: Member - bungarra (WA) - Tuesday, Dec 25, 2007 at 10:53
Tuesday, Dec 25, 2007 at 10:53
Hi and thanks for that information......based on your information it seems prudent to fit a Matson surge protector as you suggested.
I will do that irrespective of the dealers information to me. ...Cheap Insurance at twice the price...... I gather the vehicle will be supplied without any device but argiung over a damaged ECU in town is one thing........more difficult when you are left hanging off the end of your winch outback somewhere
The surge protector shold be fitted where exactly in the circuit?
Thanks again
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Follow Up By: Member - bungarra (WA) - Tuesday, Dec 25, 2007 at 10:57
Tuesday, Dec 25, 2007 at 10:57
forgot to explain.... that I will fit one in each vehicle...the Hilux in question and the new LC when delivered
Thanks again
FollowupID:
542393
Follow Up By: Member - Olcoolone (S.A) - Wednesday, Dec 26, 2007 at 11:38
Wednesday, Dec 26, 2007 at 11:38
This is the one I would recondmend, you may want to check with Matson whether you need two of them for a dual battery setup.
http://www.matson.com.au/surge_commercial.html
As you said cheap insurance but we have never really seen a vehicle that has had a problem relating directly to surge in normal conditions.
If you have jumper leads I would fit one these to them too.
http://www.matson.com.au/surge_upgradehd.html
A surge protector has a black negative wire and a red positive wire, connect the black negative wire from the surge protector to the negative terminal on the battery and the red positive wire from the surge protector to the positive terminal on the battery.
There are other brands on the market other then Matson, Matson has a good name and like any surge protector you don't know if it is working or not, but is it saves you once it's payed for it self.
Most electronics in vehicles have good surge protection as standard due to the enviroment they work in but even they can fail with no warning.
Regards Richard
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