BigJimnyMeet (North) 2024 (12 Jan 2024)
14th July 2024
Parkwood Nr. Leeds
Click HERE for details
split charge system
- jayjay1990
- Topic Author
- Visitor
-
Public
im fitting a split charge relay soon for a second battery im aware of how they work and how to fit as ive done them before
my question is , ive read that i cant connect and load to the altinator bulb wire
how have people got round this ?
jay
Please Log in or Create an account to join the conversation.
- Posts: 3059
- Thank you received: 584
- Points: 3693.00
You could fit a 200A cut off switch and simply turn it on when the engine is running.
You can get a simple voltage sensing relay for a split charge, probably work better as it will drop out if you try to winch on a flat battery rather than set fire to the split charge wiring.
I've never thought using the ignition light to trigger a relay is a good idea.
If it suddenly breaks, go back to the last thing that you did before it broke and start looking there
Please Log in or Create an account to join the conversation.
- jayjay1990
- Topic Author
- Visitor
-
Public
i know they can be fitted as a mate had one fitted but he now has sold the jimny and he dosnt know as it was allready fitted
so please if anyone has a split charge relay fitted what is theres wired to
Please Log in or Create an account to join the conversation.
- Posts: 2185
- Thank you received: 153
- Points: 5.00
Please Log in or Create an account to join the conversation.
- jayjay1990
- Topic Author
- Visitor
-
Public
supergaz wrote: I used an intelligent voltage sensing relay.
Could you please post a link please for the one you used to give me a brief idea on what it dose and how it fits
Cheers mate
Please Log in or Create an account to join the conversation.
- Posts: 2185
- Thank you received: 153
- Points: 5.00
Please Log in or Create an account to join the conversation.
- jayjay1990
- Topic Author
- Visitor
-
Public
Please Log in or Create an account to join the conversation.
- Posts: 2185
- Thank you received: 153
- Points: 5.00
Please Log in or Create an account to join the conversation.
- Posts: 3059
- Thank you received: 584
- Points: 3693.00
Personally, I'd fit a split charge diode pack, they are about £70.
Disadvantages:
- They waste power the greater the charging current the greeter the voltage drop and the greater the power loss, won't stop the batteries charging up though.
- Cost
- the batteries don't connect together, so the winch battery can never drain the starter battery. However, trying to winch on a flat winch battery will short circuit the alternator, don't know what will happen, likely the alternator will self limit once the voltage collapses as it will run out of field current.
- Easy wiring, chop into alternator charge lead, take one diode to each battery, only needs 70A cable.
www.marcleleisure.co.uk/store/-c-366.htm...51850d26e4a6987172b6
If it suddenly breaks, go back to the last thing that you did before it broke and start looking there
Please Log in or Create an account to join the conversation.
- JerseyJimny
- Visitor
-
Public
Please Log in or Create an account to join the conversation.
- Posts: 3059
- Thank you received: 584
- Points: 3693.00
The cheapest solution is to join the battery positives with a great thick cable, then insert a battery isolator switch into the link. Turn it on when the engine is running to charge both batteries in parallel, and off to isolate the winch battery.
This has the advantage of being able to use the winch battery to jump start the car if you left the lights on overnight.
The disadvantage is forgetting to turn it off.
If it suddenly breaks, go back to the last thing that you did before it broke and start looking there
Please Log in or Create an account to join the conversation.
- jayjay1990
- Topic Author
- Visitor
-
Public
All the cable and 1000cca deep cycle batterys
Really this is my perfect set up for maximum power to run two winches so would rather stick with this rather than buy mor
I'm entering punch challenges next year hence wanting all this power and fast charging
All I need is somwhere to trigger the relay I'm thinking about trying it of a ignition triggered 12v source IE stereo
Please Log in or Create an account to join the conversation.