User Manual
// Simpro Dumpmaster®
Original Instructions // English // v119.0 // October 2022 // Page
24
3.4.4
Batteries
The Dumpmaster is fitted with two 12V/20Ah deep-cycle VRLA Gel batteries connected in
series to deliver 24VDC (nominal) to the motor and control circuits.
The batteries are sealed and maintenance-free, with a nominal lifespan of five years.
However, battery life is dependent on several factors, including the number of charge
cycles, the average discharge depth, and environmental conditions.
3.4.4.1
Maximising battery life
Observing the following rules can help to maximize the life of the batteries:
-
Place the batteries on charge every night (not just when they are flat).
-
Do not allow the machine to sit with flat batteries for more than 24 hours.
-
Do not operate the machine when the voltmeter reads less than 24V.
Batteries are supplied with a 12-month warranty, separate from the warranty on the rest
of the machine.
3.4.5
Battery charger
The Dumpmaster is fitted with a digital smart charger which accepts 1-phase mains power at
85-264VAC (multi-voltage) and 50/60Hz, with a maximum current draw of 3 Amps.
The charger outputs up to 6 Amps of continuous direct current at 27.2 Volts, for a maximum
power output of 160 Watts.
The battery charger is in an enclosed plastic case and protected against short-circuit,
current overload, over-voltage, and over-temperature conditions.
3.4.6
Appliance inlet
The Dumpmaster is fitted with an IP66-rated appliance socket on the right-hand side of the
machine (opposite the control panel). This allows the machine to be charged using a regular
1-phase mains extension lead.
3.4.7
Isolator switch
The Dumpmaster is fitted with an isolator switch on the forward side of the powerpack cover.
This switch isolates the batteries from the electrical systems, and should be turned OFF if the
machine is to be placed in storage, or if the powerpack cover needs to be removed.
On some older machines, the batteries will not charge if the isolator switch is turned OFF.
3.4.8
Circuit breaker
The Dumpmaster has an auto-resetting 75A circuit breaker fitted to the main battery cable.
This cuts power to the machine if excessive current is being drawn, helping to protect the
electrical systems. It automatically resets after a period of 1-2 minutes.
Because electric motors draw more current as the voltage decreases, operating the
machine with a flat battery may trigger the circuit breaker.
Machines produced prior to 2020 were fitted with an 60A automotive blade-fuse instead
of a circuit breaker. Fuses are available from Simpro
Summary of Contents for DUMPMASTER DM0700
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