24 volts system

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Novaz
Novaz Solar Expert Posts: 57 ✭✭✭✭
in Caravan, Recreational Vehicle, and Marine Power Systems #1
Trying to plan how my batteries are going to fit in my campervan
I have two areas at the rear of camper used for hanging clothes and shelves for misc
more space vertically than horizontally so i was thinking that 2*12 volts would be better than trying to rebuild the area to take 4*6volts
both areas can be sealed off and made accesable from the outside without too much of a problem
my estimated amp hours required are 450 originaly i had planned using 4*250 watt panels i feel i could probably use less now based on low current
devices i can run.
Thanks for any input
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  • CDN_VT
    CDN_VT Solar Expert Posts: 492 ✭✭✭
    #2
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    Re: 24 volts system

    Weight , 6v GC are 60# each with connectors & cable So 240-250 # .

    VT
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  • techntrek
    techntrek Solar Expert Posts: 1,372 ✭✭✭
    #3
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    Re: 24 volts system

    Sounds like an odd voltage.
    4.5 kw APC UPS powered by a Prius, 12 kw Generac, Honda EU3000is
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  • Novaz
    Novaz Solar Expert Posts: 57 ✭✭✭✭
    #4
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    Re: 24 volts system
    techntrek wrote: »
    Sounds like an odd voltage.

    4* 6 volts or 2*12 volts its 24 volts whats odd
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  • Mountain Don
    Mountain Don Solar Expert Posts: 494 ✭✭✭
    #5
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    Re: 24 volts system

    Maybe odd because this is going into a vehicle which is likely 12 volts ?
    Northern NM, 624 watts PV, The Kid CC, GC-2 batteries @ 24 VDC, Outback VFX3524M
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  • AuricTech
    AuricTech Solar Expert Posts: 140 ✭✭
    #6
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    Re: 24 volts system
    Mountain Don wrote: »
    Maybe odd because this is going into a vehicle which is likely 12 volts ?

    Since Novaz referred to a "campervan" that will host this PV system, my guess is that the 24V PV system (which is likely inverter-driven) won't interact with the vehicle's 12V systems. If that's the case, then a 24V system may well make sense.
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  • CDN_VT
    CDN_VT Solar Expert Posts: 492 ✭✭✭
    #7
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    Re: 24 volts system

    Could also have a 24V Toyota Landcruiser Diesel . Seen one of those with nice PV .
    Mines the 12Vdc BJ series

    VT
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  • techntrek
    techntrek Solar Expert Posts: 1,372 ✭✭✭
    #8
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    Re: 24 volts system

    That's why I'm asking, since most vehicles are 12 volts.
    4.5 kw APC UPS powered by a Prius, 12 kw Generac, Honda EU3000is
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  • Novaz
    Novaz Solar Expert Posts: 57 ✭✭✭✭
    #9
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    Re: 24 volts system

    My question was purely about on a 24 volt system is 4 *6 volt batteries a better setup than 2*12 volt batteries for a given amp/hour requirement
    being a Brit perhaps my writing of the American English is not so good
    this system is for other than running my vehicle electrics which i have already taken care of with a 200 watt pv system
    i will be using an inverter to run a couple of appliances outside of the main vehicle
    Thanks
    Roy
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  • CDN_VT
    CDN_VT Solar Expert Posts: 492 ✭✭✭
    #10
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    Re: 24 volts system

    Roy , I'm also a Brit, Jerseyman
    6Vdc GC style are more along the line over 12 Vdc type as being a deep-cycle type. Many marine type deep cycle are not in the same league as the GC 6Vdc type.

    I would use 24 V system with one of these : Pyle PSWNV720 24V to 12V DC Power Step Down 720 Watt , for the 12Vdc toys , leaving the Truck alone & for itself .
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  • Novaz
    Novaz Solar Expert Posts: 57 ✭✭✭✭
    #11
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    Re: 24 volts system

    ok got it now thanks
    ex Spurs and gunners man here LOL
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  • westbranch
    westbranch Solar Expert Posts: 5,183 ✭✭✭✭
    #12
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    Re: 24 volts system

    FYI GC stands for Golf Cart and they are designed for heavy discharge daily and quite durable in that environment.
     
    KID #51B  4s 140W to 24V 900Ah C&D AGM
    CL#29032 FW 2126/ 2073/ 2133 175A E-Panel WBjr, 3 x 4s 140W to 24V 900Ah C&D AGM 
    Cotek ST1500W 24V Inverter,OmniCharge 3024,
    2 x Cisco WRT54GL i/c DD-WRT Rtr & Bridge,
    Eu3/2/1000i Gens, 1680W & E-Panel/WBjr to come, CL #647 asleep
    West Chilcotin, BC, Canada
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  • Novaz
    Novaz Solar Expert Posts: 57 ✭✭✭✭
    #13
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    Re: 24 volts system

    Thanks yeah i had been looking at the T105s
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  • ZoNiE
    ZoNiE Solar Expert Posts: 100 ✭✭
    #14
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    Re: 24 volts system

    Two 12V batteries will give you half the AH of four 6V batteries, something to consider. Your cell count will be the same in series, but the GC's have twice the capacity per cell.
    Since you are using 24V, at least you won't have any parallel cells to contend with.
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