Backup Battery - Motorola ACE3600 RTU Owner's Manual

Backup Battery

Overview
The ACE3600 backup 12V Lead-Acid battery provides backup for the main input power. The
battery is available in two capacities: 6.5 Ah and 10 Ah. Switching from main input power to
the battery and charging of the battery is performed by the ACE3600 power supply module.
Sealed Lead Acid technology batteries can be recharged and discharged at a temperature range
of -30º to +60ºC. Storage and operating temperatures affect the battery capacity and lifespan.
ACE3600 power supply modules include a special charging power supply designed to fit the
specific temperature-compensated float-voltage-charging curve of the battery.
Lead Acid batteries will self-discharge if they are stored without charging. Self-
discharge below the manufacturer's recommended voltage will result in internal
permanent damage to the battery rendering it inoperable. When this occurs, if
connected to a power supply/charger, the battery may produce excessive internal heat
and therefore deform and/or leak.
The batteries are shipped disconnected from the power supply/charger. To ensure that
there are no battery problems on your ACE3600 project, each Lead Acid battery
MUST be fully charged and checked before connecting it to the ACE3600 power
supply/charger. To verify that the battery is fit for use, measure the BATTERY OPEN
CIRCUIT voltage (when the battery is not connected to the power supply/charger)
with a digital voltmeter. If the battery voltage is less than 12.5 V DC, DO NOT use
the battery and replace it with a new ACE3600 battery that measures more than 12.5
V DC.
Before transporting the battery, read and follow all safety information located on the
battery case.
If the RTU main power (AC/DC) is disconnected and the power supply module is shut
off, disconnect the battery from the power supply to maintain battery capacity.
ACE3600 batteries are shipped from the factory tested, fully charged and with a label
stating the next time it should be recharged when stored at temperatures of 30ºC or
less.
Power Supply Module and Backup Battery
3-15