battery voltage ??'s and more
Been a while since I've been on here and thought I new enough about my system until I installed 4 new Surrette s-550's
I'm now confused about voltage readings and there relation to temp. My classic 150 says they are 9.2C which I believe, as the ambient temp where they are is about 6-7C. So when I set my absorb volts to say 14.5 classic display runs them at 15v. (BTS)on batts. If I put volt meter on batts reads 15.1v So my question is, Is voltage reading only correct at 25C? Is the controller upping voltage to correct for this? and would I be correct in assuming if batts were 35C controller would show lower V than set point ?
Now if above was correct I have a problem with old Trace 2012 as it is shutting down, according to specs, at 15.2V and returning at 14.8. Rolls literature claims abs. at 15V at 25C and 15.3V at 10C. I don't remember inverter shutting down before with old batteries but believe set points were below 15. What should I set absorb V at and can I get around inverter shut down??