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  • Post in thread: Wiring mixed age LiFePO4 batteries: best practices

    Going to do as you recommended and I have a balancer coming in tomorrow as well. Will post results after the process is complete. Thanks for all the advice!
  • Post in thread: Wiring mixed age LiFePO4 batteries: best practices

    Well, I thought I was confident with my plan....seems I still have some confusion. After our last discussion, the tech from eco-worthy advised to connect parallel first, as "it weaker battery doesn't then dictate how the string behaves. In parallel the stronger battery will absorb charge before...
  • Post in thread: Wiring mixed age LiFePO4 batteries: best practices

    Hello, (all batteries I'll mention in this thread are LiFePO4) Current setup I have 2 x 12V batteries that are about 1 year old. I also have 2 x 12V batteries that are pretty new. I have a 24V system consisting of 2 batteries in series, which are then hooked up in parallel to another 2...
  • Post in thread: Adding new LiFePo4 batteries to existing system. Not same brand. Originals are 1 yr old with about 100 cycles.

    Good morning, I'm looking to do something similar and figured I should post here before creating a new thread. I'm using LiFePO4 batteries. I read link #6 and went down the rabbit hole of information, it was awesome. If I understood the issue of expanding a battery bank with newer batteries...
  • Post in thread: Wiring mixed age LiFePO4 batteries: best practices

    That makes sense. I took measurements today when the charge controller had entered the Boost stage for approximately an hour. String 1: 14.25V + 14.35V=28.6V String 2: 13.40V + 15.25V=28.65V *some numbers rounded up/down at the 100th decimal place. I also took measurements under discharge...
  • Post in thread: EAsun MLV 3KW-U hybrid off grid solar inverter 1st week review and updated for 1 year of usage.

    @Mattb4 Amazing thread and great review with reasons. I understand that most would suggest MPP or Growatt but at almost 40% cheaper, should one not at least consider if these SRNE rebadges are reliable? I think so. It seems I'm considering the same unit and it's on sale right now on Amazon in...
  • Post in thread: Wiring mixed age LiFePO4 batteries: best practices

    Thanks for the detailed responses. Do you recommend a battery balancer? Or is it sufficient to ensure the bank is charged to full capacity I.e. cut-out voltage monthly?

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