Announcement

Collapse
No announcement yet.

Booster Diode and Solenoid to Redarc BCDC

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

  • #31
    I'm just displaying what the logger displays. It's nominally an 82Ah battery, or was two years ago when new... might be down on that a little now. Not sure where you got the 100 Ah from.



    Originally posted by drivesafe View Post
    You have either a miracle battery or battery charger!
    Cool. Long may the miracles continue.

    Comment


    • #32
      Sorry dBC but your STORY defies the laws of physics.

      As posted earlier, the final stage of the charge is controlled by the battery, not the charging source, and even an 82Ah battery would require far, FAR longer to recharge from 60% SoC to fully charged.

      Again, you should be looking at at least 3 to 4 hours before the DC/DC device went into FLOAT mode.

      Comment


      • #33
        How are you finding the DC Charger Justin?

        What do you think of recharge time and are you still seeing a fully charged battery?

        I'm interested in your thoughts.
        Cheers
        Micheal.

        2008 GXL D4D Auto. GOING... GOING... GONE
        2015 GXL 1GD Auto. And it begins again...

        Comment


        • #34
          I find the recharge time so far very quick. You have to remember the current is restricted by the battery, and they dont just take what you throw at them. So for one battery 25 amps is plenty, even with a fridge. if you had bigger multiple batteries then the 40 amp would be the go.

          I also find the battery gets topped off better, and you get a bit more out of it on any given day, but its only a bit.

          Comment


          • #35
            Hi Justin and can you post up more details.

            Like what size and type of auxiliary battery are you using.

            How low did you discharge your auxiliary battery.

            How long did you drive for when recharging the battery.

            Comment


            • #36
              I havent done much since fitting the BCDC, The battery I have is a 90 Ah. I discharge it often to 11.5 volts when i use all the lights and the fridge. I havent done this since fitting the BCDC.

              But with the bit or driving around I have done, I dont think its any slower than the solenoid with a 90 Ah Deep cycle

              Comment


              • #37
                Originally posted by Justinvv View Post
                You have to remember the current is restricted by the battery, and they dont just take what you throw at them.
                It should while you're in Bulk mode. What Absorption mode voltage have you set on your BCDC, i.e. what did you do with the yellow wire? As you chuck 25A at the battery, the voltage will rise until it hits that set voltage, then the BCDC will maintain that voltage and as you say, the battery will then determine how much current it draws from there on in. Maybe your discharges to date have been shallow enough that it's hitting the set-point voltage almost immediately and going straight into Absorption mode?

                I've attached an old pic of my morning recharge cycle after an overnight camp. That 4A notch in the charge current (Yellow) for about 5 mins at about 9:20 is the fridge kicking on. This capture pre-dates my recent install of a load-changeover relay which will remove those notches. The other interesting note is that it switches to Absorption mode (Yellow starts to decay) slightly early ... at about 15.1V instead of 15.3V. I suspect that 0.2V is voltage drop between the output of the BCDC and the battery... the BCDC is seeing 15.3V at its end but due to the 25A flowing, the battery is only at 15.1V. That's not helped by the fact that I have to introduce a small shunt resistor in that circuit to measure the current, so at least some of that voltage drop is measurement-induced. You can see as the current drops away the voltage as measured at the battery end (Pink) climbs up to the nominal 15.3V. It then goes into Float mode when the current drops to 4A, and even then it's still pumping 1A in, so it's not full yet.

                Originally posted by Justinvv View Post
                I discharge it often to 11.5 volts when i use all the lights and the fridge. I havent done this since fitting the BCDC.
                I think those deep discharges will be the real test. That's when your old VSR/alternator setup is most likely to outperform, especially given you have the luxury of a booster diode so see decent alternator output voltages. In my plot below, you'll see my Aux voltage is higher than the Cranker voltage throughout (apart from when it's gone into Float mode at the end). There's no booster diode option for my 2.8L.

                I'll be interested to hear what you find after a deeper discharge.
                Last edited by dBC; 29-07-2018, 10:51 AM.

                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