Hi Guys, there are numerous threads out there that cover some of my questions but i thought i would post my situation for those of you that are electrically connected so to speak as i am not one of them.
My 2006 D4D GLX has a dual battery system installed with the aux battery an Allrounder MRV70 connected via a Matson dual battery isolator (140 amp) which states on the cover : cuts in 13.3 v and cuts out 12.8 .
I have an anderson plug wired from the cranking battery which feeds into the jayco discovery offroad caravan to charge the two van batteries while travelling and i also run the fridge on 12 volt while travelling as well. When we stop for short periods say an hour i also disconnect the anderson plug so as not to drain the cranking battery and when we camp i also immediately disconnect the anderson plug and swing the fridge over to gas.
The caravan also has a solar panel on the roof that charges the two van batteries as well. The caravan has a Powertech MP3722 PV charge controller wired with batteries + - and PV + -.
That said, i also run a 12 volt plug fed from the aux battery to the rear of the Prado to run the Waeco fridge. In the past i have found the fridge giving me the death blick when i pear through the rear window in the morning thus indicating a flat aux battery. Since then i have installed the new allrounder but am wondering if there is sufficient charge from the alternater to maintain the charge to the caravan two batteries as well as keep the aux battery topped up as well. I am getting an ABR sidewinder dual battery monitoring system installed so at least i will know when the aux battery is low and then perhaps i can hook up the honda generator to charge the aux battery.
Sorry about the long post but really my question is, what else can i do to ensure the aux battery remains charged or should i install a better alternator or some sort of charging booster as i need to get this sorted before i head off around australia nex year.
Thanks in advance
Wazza (Frederick)
My 2006 D4D GLX has a dual battery system installed with the aux battery an Allrounder MRV70 connected via a Matson dual battery isolator (140 amp) which states on the cover : cuts in 13.3 v and cuts out 12.8 .
I have an anderson plug wired from the cranking battery which feeds into the jayco discovery offroad caravan to charge the two van batteries while travelling and i also run the fridge on 12 volt while travelling as well. When we stop for short periods say an hour i also disconnect the anderson plug so as not to drain the cranking battery and when we camp i also immediately disconnect the anderson plug and swing the fridge over to gas.
The caravan also has a solar panel on the roof that charges the two van batteries as well. The caravan has a Powertech MP3722 PV charge controller wired with batteries + - and PV + -.
That said, i also run a 12 volt plug fed from the aux battery to the rear of the Prado to run the Waeco fridge. In the past i have found the fridge giving me the death blick when i pear through the rear window in the morning thus indicating a flat aux battery. Since then i have installed the new allrounder but am wondering if there is sufficient charge from the alternater to maintain the charge to the caravan two batteries as well as keep the aux battery topped up as well. I am getting an ABR sidewinder dual battery monitoring system installed so at least i will know when the aux battery is low and then perhaps i can hook up the honda generator to charge the aux battery.
Sorry about the long post but really my question is, what else can i do to ensure the aux battery remains charged or should i install a better alternator or some sort of charging booster as i need to get this sorted before i head off around australia nex year.
Thanks in advance
Wazza (Frederick)
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