I have a loading arm on a vehicle powered by a hydraulic motor powered by a 12 volt motor. The motor is initiated by proximity switches on the hydraulic spool valves. In normal use the dedicated crane battery is charged via a split charge relay from the vehicles alternator between destinations.
I wish to use the crane for extended periods on site.
I have, so far, 3 options:
1. A power supply capable of meeting the systems fused rating of 170 Amp start current at 12 volts (dismissed due to expense)
2. Have an intelligent battery charger connected to the crane battery at all times. The start current being taken from the battery and the charger maintaining the battery.
3. Have the positive of a non intelligent battery charger (max 4 Amps) connected to the crane battery via a relay. This relay is controlled by a timer relay. When the proximity switch energises the crane motor solenoid, it also energises the timer relay which in turn disconnects the charger from the battery. When the timer relay elapses the charger is re-connected to the battery.
Which is the best option ?
I wish to use the crane for extended periods on site.
I have, so far, 3 options:
1. A power supply capable of meeting the systems fused rating of 170 Amp start current at 12 volts (dismissed due to expense)
2. Have an intelligent battery charger connected to the crane battery at all times. The start current being taken from the battery and the charger maintaining the battery.
3. Have the positive of a non intelligent battery charger (max 4 Amps) connected to the crane battery via a relay. This relay is controlled by a timer relay. When the proximity switch energises the crane motor solenoid, it also energises the timer relay which in turn disconnects the charger from the battery. When the timer relay elapses the charger is re-connected to the battery.
Which is the best option ?
