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  1. J

    Two year old Relion 100-HP battery bank going south rapidly

    Thank you all for the ideas and contributions regarding this unfortunate incident. I now have 3 new batteries thanks to Relion who quickly covered their warranty agreement. Batteries have been individually charged, rested, interconnected in parallel and are now stabilizing with no load or charge...
  2. J

    Two year old Relion 100-HP battery bank going south rapidly

    Thank you for your info/opinion. I read that PD was a decent charger and one of the better chargers. More BS I suppose if what you say is true. Now the real problem. My batteries are not sitting on a bench inside a very large room within a very large building. RVs are a fine example of 10 pounds...
  3. J

    Two year old Relion 100-HP battery bank going south rapidly

    The first 1/2 hour was a steady load of about 8 amps, my refrigerator plus one LED light. Going to 13 volts with that light load on three 100 ah is normal? The stacked loads were to show overall poor performance under modest RV loads, less than 30 amps per battery. And that load generated low...
  4. J

    Two year old Relion 100-HP battery bank going south rapidly

    Thank you for the info. My charger is a Progressive Dynamics PD4655LIV, specifically designed for lithium batteries and has no adjustments or settings. Just a lithium configuration jumper wire (installed). It replaced the WFCO panel standard battery charger/power supply installed in the RV. I...
  5. J

    Two year old Relion 100-HP battery bank going south rapidly

    This is a two year old 300 ah LiFePO4 battery bank discharge profile. I have the individual battery discharge profiles too. Very similar but things happen much quicker.
  6. J

    Two year old Relion 100-HP battery bank going south rapidly

    Test for what, exactly? Are there testers especially made for LiFePO4 batteries? Who makes them? I have charge and discharge profiles (graphs of voltage vs current from the Victron BMV-712 SmartBMV app "Trends" page) of the 3-battery bank and individual batteries if you would like to see them. I...
  7. J

    Two year old Relion 100-HP battery bank going south rapidly

    Thanks. But I'll need a 150 amp charger. Three 100 ah batteries in parallel. Each will take 50 amps. I have nothing that large AND I'm in the middle of a cross country tour, 1000 miles from home. Relion is shipping replacements to me this Friday. And 90% discharge followed by a maximum charge...
  8. J

    Two year old Relion 100-HP battery bank going south rapidly

    Specs were never exceeded, not even close. BMV-712 tracked voltage/SOC spot on when charge efficiency was set to 90%, setup indicates 99%. That efficiency never happened. Gross discharge and charge numbers proved this out over time from new. There might have been an issue with the batteries from...
  9. J

    Two year old Relion 100-HP battery bank going south rapidly

    This spring, April, batteries were all separated and charged to full capacity separately and reconnected after sitting idle for 24 hours after being retested for voltage (within .1 volt). Connections are solid.
  10. J

    Two year old Relion 100-HP battery bank going south rapidly

    Storage at 50% SOC (by voltage reading and SOC which was tracking well at the time) is incorrect? Says who? I was told by Relion support that this is the procedure for long term (several months) storage.
  11. J

    Two year old Relion 100-HP battery bank going south rapidly

    Has anyone experienced big-name LiFePO4 batteries rapidly loosing their ability to hold power after just two years of easy use? I have, in my class C RV, a bank of three 100 ah batteries with 400 W solar, 40 amp controller and 2kW inverter which was used only a few times. The RV was mostly...
  12. J

    Two chargers on one bank of batteries

    I have charged my bank of three 100 ah batteries by simultaneously using the RV's DC converter (12 volt power supply/charger), the engine alternator (through the BIRD solenoid) and solar controller with four 100 W panels. I got close to a 100 amp charge current. Pretty close to adding up the...
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