Originally Posted by TheDL
So you're saying a SLA outputing only 11.89 volts has 0% capacity? Dang! So with my battery "fully charged" now I could probably take a multimeter and measure the voltage coming out, yeah? Or can I test the battery charger with a multimeter?
The values in the chart are approximate. The best thing, as Ken pointed, is to find the manufacturer's specs. Make sure you let the battery stabilize, i.e. disconnect the charger and/or the load then wait a while before you take voltage measurements.