Alliance Intelligent Battery Series
TM
User’s Guide
© 2020 American Battery Solutions Inc. All rights reserved. The data herein is intended as a guide and does not reflect the specification range for any particular property of this
product. Such data is based upon analysis of representative samples and not the actual product shipped. We based the information on data believed to be reliable on the date
compiled, but we do not represent, warrant, or otherwise guarantee, expressly or impliedly, the merchantability, fitness for a particular purpose, freedom from patent
infringement, suitability, accuracy, reliability, or completeness of this information or the products, materials or processes described.
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voltage measurement device.
Over-Charge Protection (Over-Voltage Protection)
Similar, but opposite to the case at low states of charge, the Alliance Intelligent Battery
Series™ terminal voltage begins to rise rapidly at high states of charge. The Alliance
Intelligent Battery Series™ is considered at 100% SOC when the cells are balanced
and terminal voltage measures 57.4 volts or above. At this point, the average cell
voltage is the terminal voltage divided by 14, or 4.1 volts. The Alliance Intelligent
Battery Series™ is designed to enter an Over Voltage Protection (OVP) state if any cell
rises above 4.1 volts. In the OVP state, the Alliance Intelligent Battery Series™ will
disconnect its terminals and not accept further charge current. To exit the OVP state,
apply a load to discharge the Alliance Intelligent Battery Series™. The battery’s
internal balancing circuitry will also cause an automatic exit of this state, but it may
take longer. The Alliance Intelligent Battery Series™ will return to Normal State once
the cell voltages fall below 4.08 volts. For further details, refer to the section:
“Balancing”.
The Alliance Intelligent Battery Series™ battery supports 3 level of Over Voltage
protection.
1.
Overvoltage Warning
– Overvoltage Warning sets a warning flag if any of the Battery
cell voltage goes above Maximum Charge Voltage. This notifies the user to take
appropriate actions and will not allow entry into charging without opening the FETs.
2.
Overvoltage Moderate
- Overvoltage Moderate flag is set if any of the Battery cell
voltage goes further above Maximum Charge Voltage. This fault will exit the charge
state to stop further charging of the battery without opening the FETs.
3.
Overvoltage Severe–
Overvoltage Severe protections is set if any of the Battery cell
voltage goes above the Charge Over Voltage Protection limit. Setting this fault
opens the FETs. This helps battery from protecting itself from over Charge
conditions.
Over-Temperature Protection
The Alliance Intelligent Battery Series™ battery’s circuitry continuously monitors the
battery’s temperature. The battery will open its terminals before the temperature is too
high for safe operation. Do not operate the battery outside of the operational
temperature range specified in Table 6.
