TimC wrote:
90 aHr usable on the 120 aHr rated battery is my number not Lynx. I don't know a lot about LiFePo4 batteries but have read that the less frequently they are deeply discharged the longer their expected life.
yes doing the 90 to 20% charge/discharge should give 5000 cycles, doing the 100% to 0% should be 3000 cycles.
TimC wrote: My normal demand is probably less than 25 aHr per day and is easily recovered the next day. On a sunny day usually by noon. Using 90 aHr would be rare if it ever happened but I want the cushion for a long trip with unpredictable solar generation.
look my my post I just did one real life battery and solar
TimC wrote: I realize I could source materials and build myself cheaper but I don't feel confident doing that. I'm ok with paying for a complete battery and BMS. Just hoping when it comes time to replace my AGMs the prices have come down more. Competition in the market for these batteries seems to be heating up.
Doing a diy battery is less complicated than wiring your fuse panel. Its 4 buss bars on the battery, 5 little wires on the bms, a big wire from the bms to the battery and your done. Plus if you get a smart bms it will bluetooth to your phone and give you state of charge.
But I understand, I wish at this point I had done a diy battery. Heck I will sell you my two 60 ah lifepo4 batteries for 600, they have less than 5 full cycles on them, and about 30 partial cycles. I would then diy a 280 ah battery and break even.