can anyone recommend a good Battery load tester

MEK1954MEK1954 Registered Users Posts: 23 ✭✭
I see a lot of automotive battery testers on amazon that are rated for CC amphr batteries but can anyone recommend a good Battery load tester that would work for 200 amphr battery's.


  • mike95490mike95490 Solar Expert Posts: 9,291 ✭✭✭✭✭
    Your inverter !
       Figure out how you want to test the battery, at the C20 rate, or for a 10 min max load.
    Size the load on the properly rated inverter, and start cooking !   Use a DC clamp on ampmeter to verify the load calculation is correct.
    Use a DC voltmeter to monitor the battery sag & recovery voltage

     However, most true deep cycle batteries don't have a CCA spec, and many have a peak allowable surge spec (max amps) before the internals start to melt
    Powerfab top of pole PV mount | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
    || Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
    || VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A

    gen: ,

  • Dave AngeliniDave Angelini Solar Expert Posts: 5,948 ✭✭✭✭✭
    Headlight application from older vehicles. Old sealed beam 12VDC lamps are inexpensive.
    "we go where power lines don't" Sierra Mountains near Mariposa/Yosemite CA
    E-mail [email protected]

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