The best indicator of health IMO is the Amp-Hour capacity compared to the manufacturers rating and historical measurement. Typically you would measure them at a C/20 rate from 100% 50% so a 100AH battery would test at 5 amps for 10 hours.
The problem with typical resistance loads is that as the voltage drops so does the current. The load has to be regulated. It would also be nice if the load didn't over discharge your battery. I have a Computer Battery Analyzer (CBA) from West Mountain Radio that will perform this test nicely. Check them out. Josh Muckley S/V Sea Hawk 1989 C&C 37+ Solomons, MD On Oct 3, 2016 2:21 PM, "David Knecht via CnC-List" <[email protected]> wrote: > I would like to be able to monitor the health of my batteries without > having to haul them off the boat. I looked at Amazon and found many > battery testers (load and conductance) from $15 to $250. Has anyone tried > any of these devices and have any suggestions on what to buy or not to buy? > Dave > > Aries > 1990 C&C 34+ > New London, CT > > > > _______________________________________________ > > This list is supported by the generous donations of our members. If you > like what we do, please help us pay for our costs by donating. All > Contributions are greatly appreciated! > >
_______________________________________________ This list is supported by the generous donations of our members. If you like what we do, please help us pay for our costs by donating. All Contributions are greatly appreciated!
