Re: Battery isolator question Reply #25 – October 21, 2022, 02:20:01 pm "A [clamp meter] drawback is that just one current carrying lead can be inside the pickup loop."I know we're talking about DC wiring here, but it's worth mentioning that an inexpensive "line splitter" makes it possible to measure AC current with a clamp meter. 1 Likes
Re: Battery isolator question Reply #26 – October 21, 2022, 02:27:42 pm "I think the rapid charge generally degrades the battery faster over time, and my goal was to preserve the lifetime, to reduce the overall long term cost."Fair enough. And since few of us (including me) have enough charging power to hit the recommended maximum charging limits of any of the LiFePO4 batteries we've been discussing, my concern was pretty much a moot point.
Re: Battery isolator question Reply #27 – October 23, 2022, 07:00:17 pm Quote from: Jane and Scott - October 21, 2022, 01:02:44 amI know Lithium.is generally supposed to charge at 2% of capacity (could vary per manufacturer) at least i found this in several sources including from amsolar.Solar Panel DIY Installation Help & RV Solar Power Setup | AM SolarAmpere says to use 2% as optimal maxcharging (improves life of battery). For us (200ah) would be 40 amps. I am guessing you are seeing different suggested charging specs for your battery brand.The 2% is the 'tail current'. This is the current below which the batteries are considered fully charged. The batteries can accept the full 100A charge current, and when fully charged, the BMS will stop accepting a charge. The tail current spec is used by battery monitoring systems to recalibrate their reading to 100% state of charge (auto-synchronization).Steve 1 Likes
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Topic: Battery isolator question (Read 473 times)
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