Results 1 to 7 of 7
  1. 09-14-2023, 05:57 PM #1
    TR-20XGlenn
    TR-20XGlenn is offline
    Member
    Join Date
    Oct 2006
    Location
    Williamsburg, VA
    Posts
    757

    HDS Pro's / AT 2 - Switching to Lithium power, and just realized I may need to rewire

    Here's something I've never run into and need some advice on...


    Right now, all of my electronics are hooked up to my cranking battery. Everything Lowrance wise is connected to a Sea Clear harness, with one exception - the yellow power-on wire for my AT 2. That wire is connected to a factory accessory switch on my Triton dash. That power is also coming from the cranking battery, as it is connected to the fuse box.


    Future setup - My Lithium battery is finally on order. Paid for a 165 ah Monster Marine yesterday (super nice, helpful people). Should be shipped this week, so I'm prepping, and just realized this:

    I'll just be moving my Sea Clear harness from the cranking battery to the new Lithium. Simple - Right? Well... how about that one yellow turn on wire that is still connected to the cranking battery? The cranking battery is an AGM. So I'll have the AT2 power coming from the Lithium, but the "wake up" coming from the AGM.


    Is this going to cause problems, in your opinion?

    All the best,
    Glenn
    Reply With Quote Reply With Quote
  2. Bass in the grass
    Bass in the grass is offline
    Banned
    Join Date
    Jan 2023
    Location
    Texas
    Posts
    3,012
    #2 09-14-2023, 07:05 PM
    No, power is power. Might need to make a jumper ground wire, but that would be all and “if” needed.
    Reply With Quote Reply With Quote
  3. NoCAL
    NoCAL is offline
    Member
    Join Date
    Dec 2004
    Location
    Woodland, CA
    Posts
    1,353
    #3 09-14-2023, 07:42 PM
    The yellow wire just supplies the wake up boost. Power is actually supplied by the red wire. So, it is going to be powered by your new lithium

    NoCAL
    2004TR-21X/2015 250 ProXS
    2B112175
    Reply With Quote Reply With Quote
  4. TR-20XGlenn
    TR-20XGlenn is offline
    Member
    Join Date
    Oct 2006
    Location
    Williamsburg, VA
    Posts
    757
    #4 09-18-2023, 04:14 PM
    Well... I tested it today. Works fine just the way it is - no jumper between batteries or anything. Red and Black are on Lithium. Yellow wake up wire and the AT2 Module Chassis ground are connected to the boat's starting battery.
    All the best,
    Glenn
    Reply With Quote Reply With Quote
  5. NoCAL
    NoCAL is offline
    Member
    Join Date
    Dec 2004
    Location
    Woodland, CA
    Posts
    1,353
    #5 09-18-2023, 06:59 PM
    You are running the main power from the new lithium through a switch right?
    2004TR-21X/2015 250 ProXS
    2B112175
    Reply With Quote Reply With Quote
  6. Whiteboat
    Whiteboat is online now
    Member
    Join Date
    Jun 2004
    Location
    Lake Mary, FL
    Posts
    4,348
    #6 09-18-2023, 08:01 PM
    Just had the Sea Clear harness installed on my boat. My rigger put seperate switches for the Active Target box and the Side Scan box. Other than the connection at the battery, the boats system and my electronics are totally separate and stand alone..
    Reply With Quote Reply With Quote
  7. TR-20XGlenn
    TR-20XGlenn is offline
    Member
    Join Date
    Oct 2006
    Location
    Williamsburg, VA
    Posts
    757
    #7 09-18-2023, 08:36 PM
    Quote Originally Posted by NoCAL View Post
    You are running the main power from the new lithium through a switch right?
    Correct. Sea Clear harness with the positive side through a cut-off switch.
    All the best,
    Glenn
    Reply With Quote Reply With Quote
« Previous Thread | Next Thread »