4
discoverbattery.com
2. Battery Operating Limits
2.1 Maximum Battery Operating Limits
The battery should not be operated outside the Maximum Operating Limits, the BMS will open its internal relay and disconnect
the battery if any of the following limits are exceeded.
Maximum Operating Limits
14-24-2800
12-36-6700
12-48-6650
Continuous Charge Current*
110 Adc
150 Adc
130 Adc
Continuous Discharge Current*
110 Adc
150 Adc
130 Adc
Charge Voltage
27.2 V
40.8 V
54.4 V
Operating Voltage (Min / Max)
22.4 V / 29.2 V
33.6 V / 43.8 V
44.8 V / 58.4 V
Charge Temperature (Min / Max)
0°C / 45°C (32°F / 113°F)
Discharge Temperature (Min / Max)
-20°C / 50°C (-4°F / 122°F)
Storage Temperature (Min / Max)
-20°C / 45°C (-4°F / 113°F)
* Effects of AC Ripple must be taken into consideration when sizing and configuring your system.
2.2 Current Protections
The programmed over current protections of the BMS follow the curves seen in the next two figures:
▲
NOTE!
Intentional bypassing of BMS to operate the battery
outside maximum and minimum limits voids warranty.
2.3 Recommended Battery Operating Limits for High AC Ripple Applications
The battery maximum operating limits are specified for DC current and voltage and do not account for AC ripple typically caused
by frequency conversion electronics such as inverter/chargers. The following operating limits are recommended for these types
of systems.
Recommended Operating Settings
14-24-2800
12-36-6700
12-48-6650
Max Continuous Charge Current
< 78 A
< 106 A
< 92 A
Max Continuous Discharge Current
< 78 A
< 106 A
< 92 A
Charge Voltage (Bulk/Absorb)
27.2 V
40.8 V
54.4 V
Charge Voltage (Float)
26.8 V
40.2 V
53.6 V
Low Voltage Disconnect
24 V
36 V
48 V
Operating Temperature
20°C (68°F)
High Current Interrupt Time (100-150%)
% of Fuse Rating
110%
120%
130%
100%
140%
150%
160%
% of Fuse Rating
200%
300%
400%
500%
600%
700%
High Current Interrupt Time (200-600%)