Copyright © Azoteq (Pty) Ltd 2022
AZBAT24100A User Manual
Page 9 of 13
All Rights Reserved.
Revision 1.02
September 2022
Azoteq
PowerSense
®
Series
4. Ensure that the batteries are wired in a diagonal fashion, as shown in Figure 3, with the
positive connection from the inverter first connected to the first battery and the negative
connection from the inverter connected first to the last battery
Figure 3: Parallel Battery Diagonal Wiring
Series connection
The AZBAT24100A battery can be used in series with batteries of the same model, capacity and
manufacturer.
1. Ensure that both batteries are fully charged and all cells are balanced before connecting
them in series.
2. DO NOT connect batteries in series without a battery balancer module.
a. This is due to the protection nature of the BMS used in Li-ion batteries.
b. If a single battery reaches full charge it will prevent the other battery that it is
connected to, in series, from continuing to charge.
c. If a single battery reaches full discharge it will prevent the other battery that it is
connected to, in series, from discharging further.
Troubleshooting
Battery start-up procedure
In some cases the battery will go into a safe mode in the event of a short circuit or over-discharge.
The Short Circuit Protection (SCP) circuit in the battery can potentially be activated when connected
to an inverter or parallel battery for the first time. Since some inverters have large input capacitors,
there is a significant inrush current from the battery to the capacitors inside the inverter which
activates the SCP on the battery.
The BMS inside the battery switches off output voltage resulting in an open-circuit. This is visually
evident when the display on the battery does not switch on. This can be confirmed by connecting a
