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Lightwater



Member Since: 21 Aug 2014
Location: Sydney Northern Beaches
Posts: 4702

Ukraine 2013 Freelander 2 2.0T SE Auto Fuji White
DC to DC converter

I have installed a DC to DC converter, actually 2 as you can connect them in parallel. The first one was not quite large enough so I added another one. The next model up was physically too large so I stacked these ones. So now 2 Victron 12v to 12v 9amp converters. Typically the one converter was charging at about 5amps depending on battery voltage. But if the auxiliary battery is a bit low there is now more capacity to charge up quicker.

I did a torture test running the compressors off the auxiliary batteries & the charging briefly got up to 19.5amps. The batteries are actually for the fridge. One controller was briefly outputting 11.5amps so I was a bit concerned with the 20amp fuse!

So the maximum amps is ok. The typical maximum will be around 12amps. When the batteries are charged it is about 3amps.

The DC to DC converters are at the bottom stacked one in front of the other, slightly offset vertically so I can get to all the terminals. Above is the 100/20 MPPT solar controller, it has heatsinks front & back for hot weather as they start running less efficiently above 40°C.

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2 or the 3 26ah batteries under the seat.
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MPPT 100/20 controller.
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 Procrastination, mankind's greatest labour saving device!

Acoustic insulation ARB TPMS 3xARB air compressors After cooler Air tank On-board OCD pressure air/water cleaning Additional 50L fuel Carpet in doors ABE 2x1kg Waeco 28L modified fridge Battery 4x26ah Solar 120w Victron MPPT 100/20 DC-DC 18amps 175amp jumper plug Awning 6x255/60R18

Post #374180 28th Jun 2019 6:27 am
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jules



Member Since: 13 Dec 2007
Location: The Wilds of Warwickshire
Posts: 4515

United Kingdom 2014 Freelander 2 SD4 SE Auto Firenze Red

Bow down Im always impressed with your mods - may they long continue Jules

Post #374190 28th Jun 2019 9:09 am
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