User guide
Manufacturer
Kung Long Batteries Industrial Co., Ltd.
Cat No
WP4.5-12
Rating
12 Vdc, 4.5 Ah
POWER USAGE INSTRUCTION
General Summary
! A built-in switching power supply allows for AC power inputs ranging from 100 ~ 240volt and an
external 24~32volt DC power supply, if required.
! A built-in AC power supply powers the unit itself and provides recharging to the built-in lead-acid
rechargeable batteries, too.
How to use AC power input
! After putting the power plug into the AC input socket of the device, the 4 battery meter indicators
will glow immediately, no matter if the power switch is on or off. This means that the built-in
switching power supply is functioning normally and the built-in rechargeable batteries are fully
charged. If the battery meter indicators are blinking this means that the built-in switching power
supply is working normally and the built-in rechargeable batteries are in an under charged
condition. After a couple of minutes, the battery meter indicators will stop blinking and continue a
glowing condition, indicating the batteries are now fully charged.
! AC power provides power to both the unit itself and to the built-in lead-acid rechargeable batteries.
! When using the AC power, you can remove or plug the power cord freely with no need to turn off
the power switch first. If or when an unfortunate power cut happens during usage, the MA-708 will
activate the DC power automatically to maintain continuous operation.
How to use DC power input
! Two built-in series connection lead-acid batteries with models WP 4.5-12 are used. When the
batteries are fully charged, the unit can be operated continuously for approximately 7~8 hours in
standby mode (CD player and two receivers are turned on); 6~7 hours for audio and 5~6 hours
for music. (The above figures are references for brand new batteries only)
! The built-in rechargeable batteries can be recharged when the unit is plugged into an AC or DC
power outlet.
! In the case of no AC power connection, if the power switch is not turned on, the battery meter
indicators will not be shining. When the power switch is turned on, the red LED on it will be
shining; meanwhile, if 2 to 4 battery meter indicators are shining, it means the battery power is
enough for normal operation. The number of the shining indicators is in direct proportion of the
battery power. If only 1 battery meter indicator is shining or the red LED on the power switch is
sparking, it means the battery power is insufficient and immediate charge is necessary. If no
battery meter indicators are shining after the power switch is turned on, it means the batteries are
completely discharged or possibly faulty.
! Always store MA-708 system with the batteries fully charged if needing to store the system for
more than 3 months. Leave the system plugged into an AC power outlet when not in use.
! The rechargeable batteries will not function properly if not recharged for an extended period of
time. It is therefore, recommended to recharge after every use regardless of the usage time to
preserve battery life.
Please only use the following rechargeable internal battery (MIPRO MB-70 x 2 or MB-80 x 2)
or an equivalent rechargeable battery of the same type, rating & specifications when it is
required to be replaced.
A connector is included which allows users to make DC wiring. See diagram below for
illustration:
AC power and DC power can not be used at the same time.
CAUTION:
! Always change both rechargeable batteries at the same time.
! Do not mix battery types and do not mix old and new batteries. Replace both batteries
at the same time.
! Replace with the same type and rating rechargeable battery only.
! Rechargeable battery can be purchased from authorized MIPRO distributors & dealers.
! Danger of explosion if battery is incorrectly replaced.
! Do not try to heat, ignite, disassemble or throw batteries into a fire.
08
09
PORTABLE WIRELESS PA SYSTEM PORTABLE WIRELESS PA SYSTEM
1
4
3
2
DC V
_
+
DC V: 24~32V/10A
1
4
3
2
DC JACK Diagram
(Connector)