1
Model PAD-5
Battery Size Calculations
38
Siemens Industry, Inc.
A6V101030358_en--_c
Smart Infrastructure
4 Battery Maintenance
Perform the following tests at the recommended interval. Replace the battery set
every four years or if any of the test criteria are not met.
Initiation / Reacceptance
1. Charger Test
—With the batteries fully charged and connected to the charger,
measure the voltage across the battery set. It must read 27.3V +/- 0.3V.
2. Discharge Test
—With full system alarm load, the voltage on a fully charged
battery must not fall below 20.4V after 30 minutes.
3. Load Voltage Test
—With full system alarm load, the voltage on a fully charged
battery must not fall below 24.6V after one minute.
Testing Interval
1. Semiannually
—Perform the Load Voltage
Test.
2. Annually
—Perform the Charger Test and
Discharge Test.