There are a number of battery monitors on the market today, However. nearly all of the other battery monitors on the market loose their calibration with alternator charging (i.e in boats where engines are not run for a long period of time), and the meter does not recognise correctly the incoming charge cuffenr. Technically this is called Peukerts Exponent, but in basic words, the meter is not using the incoming charge current to accurately recalculate the battery state of charge.

This becomes evident after a number of discharge / recharge cycles, and as the company supplying the battery chargers to many of these customers, there is nothing more frustrating to be told the battery charger is not working. How have they determined this - because the battery monitor that they are using says the batteries are still flat. The Xantrex XBM, Lite & PRO models DOES NOT HAVE THIS ISSUE. Any charge is shown accurately.

Bar Graph. A simply, easy to read indicator bar showing battery status just like a fuel gauge.