National Luna Charge splitter

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jwilkinson
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National Luna Charge splitter

Post by jwilkinson »

Hi Everyone

I am in a bit of a spot as I am leaving for Namibia tommorrow minus a working charge splitter...

I baught the vehicle fitted with a National luna charge splitter but to date never had a second battery connected. I connected my new battery and battery box yesterday but from what I can see the splitter is not working. I have tested all other cabling to and from the batteries up to the splitter which is fine. The Duel battery monitor is also not detecting the second battery.

I can rewire the splitter this evening as the smaller wirring for the monitors are a bit sketchy and hope it is something simple like that and then based on that take issue further..

Is there any basic test I can do without doing the above to veryfy the splitter is working? I am as bit squeezed for time so the quicker the diagnostic procedure the better.

When motor is running I am getting about 14.5v charge so as far as I know it should be sufficient for the system to work. I also made sure their is no cross polarity.
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Re: National Luna Charge splitter

Post by Tinus lotz »

If you are getting 14.5v at the second battery the power part is working....?
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Re: National Luna Charge splitter

Post by IanT »

Just a quick one you are waiting 5 mins from start up till the solenoid engages arn't you? There is a way to bypass the solenoid have it done on my 4500 but it is in Jhb and I am am in kzn. I think it my just be bridging out the solenoid? Anyone???
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Re: National Luna Charge splitter

Post by G-MAN »

Your charge needs to be more than 13.9v at the N/L system or it wont kick in.
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Re: National Luna Charge splitter

Post by jwilkinson »

Hi All

I have waited 5 minutes and I am getting about 14.5v on the splitter's connector on the primary batteries side. I have in the meantime ordered another splitter to try tonight.
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Re: National Luna Charge splitter

Post by IanT »

I think that sounds like the right plan, to me it sounds like your solenoid is not working, best of luck!
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Re: National Luna Charge splitter

Post by jwilkinson »

Does the second battery have to drop to a specific threshold before any activity will be noticed on the split charge unit?
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Re: National Luna Charge splitter

Post by IanT »

Not that I know of, that is what the solenoid is there for, it allows your main battery to charge after start up then 5 mins later opens up the solenoid to allow charging of your 2 nd battery, then when you switch off the ignition it closes again so you do not drain both batteries while using your fridge ect
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Re: National Luna Charge splitter

Post by jwilkinson »

Thanks Ian. Hopefully the new one will give me some luck. Also bought the double battery monitor controller unit that I can manually activate the solenoid with. So no need for the 5 minute wait periods etc.
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Re: National Luna Charge splitter

Post by Tinus lotz »

If you have hassles with it along the way......take wire from body to the small black wire on solenoid , there are only 2 a red and a black take it to the black . It will force the solenoid in .
Had to do that to 4 cars in botz once battery goes to low when it kicks in and alternator voltage are low becouse of flat battery pulling it down it will not stay in . With this plan you can get the voltage up and then disconnect it before you turn of the engine
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