Copyright © Azoteq (Pty) Ltd 2022
AZBAT24100A User Manual
Page 10 of 13
All Rights Reserved.
Revision 1.02
September 2022
Azoteq
PowerSense
®
Series
multi-meter on the terminals of the battery and measuring the voltage which should always be larger
than 24Vdc.
In the case of a shut-down the battery needs to be manually reset by following the procedure below:
1. Connect AC power to the inverter after following the procedures as recommended in the
inverter installation manual. With some inverters models the battery will automatically reset
once power is applied to the inverter.
2. If the battery did not switch ON, disconnect the AC power to the inverter.
3. Use an isolated power supply or a battery charger with an output voltage of 24-29V and a
current output larger
1A
but less than
10A
.
4. Apply the voltage to the terminals of the battery for a few seconds until the voltage on the
battery is >24V after which the external voltage source can be removed.
5. The input capacitors on the inverter will remain charged while the battery is connected to the
inverter
Battery pack voltage is low or zero
1. If the battery is fully charged it will open-circuit to prevent overcharging.
a. Applying a load will reset the protection feature.
2. If the battery has been in storage for a long period or over-discharged it will open-circuit to
prevent further discharging.
a. Follow the battery start-up procedure in Section
7.1
to re-energize the battery.
3. Unstable battery voltage or irregular charging.
a. Make sure that there is proper connections on the battery terminals.
4. Battery voltage between 0V and 16V.
a. The battery has been over-discharged and may have lost some capacity. Apply a
charging voltage with a maximum of 10A charging current to re-energize the battery
cells.
b. If the battery voltage reaches 24V, increase the charging current and continue to
charge to full capacity.
c. Otherwise,
immediately stop charging
the battery as it has failed and will no longer
hold charge. Continuing to charge such a battery will result in over-heating and
eventually cause a fire or cell combustion.
Insufficient Energy Capacity
Cycle the battery 4
– 5 times by discharging to 80% DoD and then charging with a low
charging current between 2A to 10A.
