Xantrex Technology TS400 manual 6WDWHRI&KDUJH

Battery Types and Sizes

Battery State of Charge You can measure battery state of charge with a hydrometer or approximate state of charge with a voltmeter. Use a digital voltmeter that can display tenths or hundredths of a volt when measuring 10 to 30 volts. Make your measurements when the battery has not been charged or discharged for several hours. For a deep-cycle battery at 77 ºF (25 ºC), use the following table:

%DWWHU\￿9ROWDJH	6WDWH￿RI￿&KDUJH
12.7–13.0	100%
12.5–12.6	80%
12.3–12.4	60%
12.1–12.2	40%
11.9–12.0	20%

B–8 975-0055-01-01