5.2. Calibrating Your HAB™
Calibrate the State of Charge calculator and kWh using the following procedure.
• Fully charge the battery to 56V.
o If a high voltage alarm occurs, you can ignore it. You will still be below the high voltage
protection. Note: If this does occur, the alarm will not clear until the voltage falls below 54.4
±0.5 V.
o Even if the SoC (State of Charge) on the front panel gets to 100% before the voltage gets
to 54.4 V, continue to charge until you reach 56V.
o Once the battery has reached 56v, discontinue charging even if the SoC is not yet showing
100% it should recalibrate to 100% at this time. You may want to record the displayed kWh
for your records.
Or Fully discharge your battery(s) to 48.5v
o If a low voltage alarm occurs, you can ignore it. You will still be well above the low voltage
protection threshold. Note, if this does occur, the alarm will not clear until the voltage rises
above 49.6 V ± 5 V.
o If a high voltage alarm occurs, you can ignore it. You will still be below the high voltage
protection. Note: If this does occur, the alarm will not clear until the voltage falls below 54.4
±0.5 V.
• The HAB™ unit’s SoC and capacity should now be calibrated.
5.3. Charging Settings
Your battery charger (solar, inverter, or AC), should be set to stop charging at a maximum voltage
and your inverter should be set to shut down at a certain voltage. See the inverter and charge con-
troller settings in the following table:
Device
Setting
Under 40A
Charger
40-60A
Charger
60-150A
Charger
All
Standard Charge
Voltage
56V
Peukert
Coefficient
1.05
Internal
Resistance
≤15mΩ
Recommended
Charge Current
100 Ah per HAB™ in Parallel (Solar Charge Controller Amps +
Percentage of Inverter/Charger Maximum DC Output).
Example: For a single HAB™ system with an inverter/charger
maximum DC output of 100 A and a solar charge controller
capable of 50 A, limit the inverter/charger output to 50 A (so the
total is 100 A).
This manual
is f
or
use b
y qualified personnel
onl
y
Rev: 5.0
2022
33
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HAB Inst/UserManual REV5.0.indd 33
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