12 volt panels to charge 24 volt battery bank

islanderdreamsislanderdreams Registered Users Posts: 1
I have a set of three solar panels I use to charge my 12 volt battery bank. Could I link these 12 volt panels to my 24 volt battery bank and switch them off the 12 volt bank and on the 24 volt bank when I wish to charge the 24 volt bank ?


  • westbranchwestbranch Solar Expert Posts: 5,183 ✭✭✭✭
    Yes it is possible but you will have to have an MPPT charge controller and rearrange the 3 panels into a series connection (at ~ 36V nominal voltage), not in parallel (12V) as it appears you presently have.  There is more but you have to have an MPPT CC... like the MidNite Solar KID... or a Morning-star. 
    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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