Announcement

Collapse
No announcement yet.

DCDC charger - do i need two

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • DCDC charger - do i need two

    I have bought a camper and am thinking of putting 260ah in with a dcdc charger so i run solar and charge from my prado.
    Camper currently has a 100ah that i was thinking of putting in the prado as an aux.
    Heres' my question - am i best getting a dcdc charger in prado and one in camper, or just one charger and if only one where do i put it? prado or camper?
    Thats a long question - sorry

  • #2
    Petrol or diesel? I seem to recall the petrol alternator has a higher voltage output...

    You can use two DCDC chargers but you don"t have to. Given the distance to the camper a DCDC in the camper with a good 6B&S twin cable feed works well. Obviously the feed is fused and an Anderson plug is a good option between the car and camper. You will need a trigger wire to tell the DCDC when to switch on and off. This nneans another connector though you can use the infeed for that purpose and use something like a Redarc SBi12 or other voltage sensing relay (VSR) to switch power on and off the feed.

    For the auxiliary in the car you can fit a compensating diode to boost the voltage from the alternator (leighw sells these) and then just hook up the second battery. If you are running a fridge or something then look at a means of disconnecting the main and auxiliary when the engine is off. Again you could use the SBi12 or other VSR.

    Most DCDC chargers can have solar to charge the battery when the car is off using a changeover relay. Depends on the DCDC you choose.

    Redarc have some excellent wiring diagrams to give you ideas on their site even if you ultimately use another brand.

    Also what type of auxiliary battery? AGMs aren't fond of under bonnet heat and arebest in the back.
    mjrandom
    Out of control poster!
    Last edited by mjrandom; 06-02-2018, 08:10 PM.
    My 150 build - http://www.pradopoint.com/showthread.php?27423-A-Random-approach-to-a-Bluestorm-150-GXL-D4D-automatic

    Comment


    • #3
      As mjrandom wrote, I would use a VSR setup (have a look at the traxide unit) and booster diode for the car aux as it would perform better but you'll need a battery that can accept high charge rates. I would then try charging the battery trailer straight off the camper via a VSR setup many do with good results. If you find you have trouble charging the trailer battery you can always add a DCDC charger to the trailer setup later.

      If you decide to go the DCDC charger route I would go for one of the smarter units such as the Enerdrive as these don't need trigger circuits, just a connection to the main via suitable cable.
      HKB Electronics, manufacturer of the Alternator Voltage Booster, Silver 2008 D4D,Lifted,Underbody protection, Alternator Voltage Booster, Tiger Z winch, Lightforce DL, Air Horns, Tanami Drawers, Drop down fridge slide, Outback cargo barriers, Rotronics dual Battery system, Polaris GPS, HF/UHF/VHF, Radio speaker combiner, Long ranger water tank, Diff breathers, Inverter, Snorkel and others

      Comment


      • #4
        hi. my 2c: I have a redarc 1240. locate this closest to the second battery as the charger will step-up a poor input voltage and keep ur aux charging at the optimal level. you will still have to run a cable suitable enough for the current draw from your main battery to the charger (just because it steps the voltage up, doesn't imply you can get away with inferior cable with voltage drop prior). as mentioned above, careful where you place an AGM - most wont warrant them if exposed to high temps as they don't do well...

        Comment

        canli bahis siteleri bahis siteleri ecebet.net
        mencisport.com
        antalya escort
        tsyd.org deneme bonusu veren siteler
        deneme bonusu veren siteler
        gaziantep escort
        gaziantep escort
        asyabahis maltcasino olabahis olabahis
        erotik film izle Rus escort gaziantep rus escort
        atasehir escort tuzla escort
        sikis sex hatti
        en iyi casino siteleri
        deneme bonusu veren siteler
        casibom
        deneme bonusu veren siteler
        deneme bonusu veren siteler
        betticket istanbulbahis
        Working...
        X