Thread: 24v to 12v

Garry

I spoke to cooee at cooma about this as he was having problems with his fridge .Suggested an 24/12 volt inverter (price will be relevant to size --load/current) or changing to 12volt starter and alternator . I have since spoke to him and he has made his truck all 12 volts. Give him a call.I would check what the pully system is for the ones that run air con units.

Maurice

Garry
check on the pully system on 3.5 v8 with air con

Maurice

A few jap vehicles I've worked on, namely MK/MQ SD33's all have an convertor 24/12v for such duties, its not ideal to steal from one battery only on a 2x12v series cct

Thanks Muddy - Cooee and I have spoken a bit - it was he who suggested the battery equaliser but as you said he has now fully converted to 12v.

Rovercare - you are right about taking power from one battery - was hoping a battery equaliser was cheap to get around this problem - was shocked at the cost.

Garry

Jap wreckers would be the go

Garry

I tried this at work with a 24volt system (24volt charger)running both 12 and 24 volt components. The biggest problem was trying to balance the charge going into each individual battery ,so the most effective way was to run 12 volts from an inverter and never had any more problems with battery load charging.
Garry I thing the most efficient way is to change the whole truck to 12 volt Thats if you dont run 24 volt radio gear etc. All you need to do is to change 24 volt components to 12 volt (easily available new /second hand ) and heaven forbids you need a jump start 12 volts is easy to get compared to 24 volt.

Originally Posted by muddy

Garry I thing the most efficient way is to change the whole truck to 12 volt .

^^^^

Originally Posted by muddy

Garry I thing the most efficient way is to change the whole truck to 12 volt

I have spoken to a few 101 owners about this - if the car is pulled apart like Cooee's was, not such an issue but is not just a simple matter of swapping bits.

If there is no easy way I will just stay with what I have - a seperate alternator with 2 batteries as starters (2x12v in series) and 2x12v in parallel for 12v requirements.

Was just hoping someone with a 24v system was using an battery equaliser and could advise how well it worked.

I will investigate as Rovercare has suggested to see if any jap vehicles have this system. Also I have heard that a 24v 101 does have a 12v system as well that runs off the shunt box, but I cannot find anything about it.

Garry