What maintenance do batteries need at a remote mine site?

A structured programme rather than an inspection habit. A register of installed batteries with date codes captured at installation. Condition testing on a schedule, impedance trending as the routine tool, with a capacity test at a defined interval or when the trend crosses a threshold, remembering that impedance indicates trend rather than measuring capacity. State of charge and health visibility through monitoring, so that the schedule can shift from calendar-based to condition-based and the number of trips falls. And planned replacement on a defensible age or condition policy rather than on failure. The saving on a remote fleet is almost never in the batteries; it is in converting emergency callouts into scheduled work. —