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e Purkeys’ Select™ ligate charging system allows charging from multiple
sources and improves the charging of ligate batteries by utilizing a DC/
DC converter to boost the voltage for optimal charging. e boost in
voltage overcomes the normal voltage drop caused by the extended distance
between the ligate batteries and the vehicle charging system. Also, in cold
temperatures batteries require increased charging voltages to maintain a high
state of charge. e DC/DC converter in the Select system compensates for
temperature by providing higher charging voltages in cold weather. e result
is well-charged ligate batteries that will last longer and have ample power for
ligate operation.
e Select system is automatic and has easy-to-interpret LED indicators
to assure drivers and technicians of proper system function. e Select
Controller increases the time that the DC/DC converter can charge the
ligate batteries by automatically choosing the best available source of power
(tractor or reefer) and by monitoring the source power and “extending” the
ligate battery charge time to take full advantage of the available power,
without compromising the source batteries’ ability to crank the engine.
e Select system provides opportunity charging for ligate batteries that is
essential in low mileage, high frequency ligate operation applications. e
LED indicators clearly show the status of the source as well as the status of
the ligate batteries. A quick glance at the Select Controller assures the driver
that the ligate batteries are ready to go, or alerts the driver that the batteries
need maintenance.
e Purkeys Direct™ ligate charging system improves the charging of ligate
batteries by utilizing a DC/DC Converter to boost the voltage for optimal
charging. e boost in voltage overcomes the normal voltage drop caused by
the extended distance between the ligate batteries and the vehicle charging
system. Also, in cold temperatures batteries require increased charging
voltages to maintain a high state of charge. e DC/DC Converter in the
Direct system compensates for temperature as well as for voltage drop and
provides the best voltage to the remotely located ligate batteries. e result
is well-charged ligate batteries that will last longer and have ample power for
ligate operation.
GENERAL INFORMATION
