3.4. Charging and Discharging
The battery should be charged and discharged within the operating temperature windows as outlined within
the specifications and as indicated in the Charge Discharge table below “Connected PCE Programming
Requirements”. All currents are maximum for each battery, and should be taken into consideration when
multiple devices are charging the battery.
3.4.1. Primary Charging Source
A Primary Charging Source should be identified in the system and programmed to charge the batteries as
outlined in the table below. A primary charging source, is the charging device that will be used to charge
the battery for 75% of the time (charge energy) or higher.
3.4.2. Secondary Charging Source
A Secondary Charging Source can also be used, the preference is to also have these devices programmed
to the charging settings in the table “Connected PCE Programming Requirements”. However if this is not
possible, they can be used as long at the output voltage does not exceed the upper voltage of the
Operational Voltage Window of the battery, does not exceed the Max Charge Current, and does not
account for more than 25% of the charging (energy) of the battery.
Example
Primary Charging Source = Solar PV will be used to perform 75% of charging and will be programmed as
per below table.
Secondary Charging Source = Wind Turbine will be used to supply approximately 25% of the charging,
however can not have the voltage adjusted as per the specific charging voltages as specified in the table
“Connected PCE Programming Requirements”, and will not exceed the Operational Voltage Window or Max
Charge Current/Power of the battery.
3.4.3. Calibration to 100%
Calibration to 100% every 7 days (minimum) is required to perform a cell balance maintenance
charge. Cell balancing allows the BMS to equalise the battery cells to limit battery capacity slip and
ensures battery will accept the charge voltage correctly.
Calibration to 100% is achieved by:
Charge batteries at specified “Continuous Charge Voltage” and no greater than the specified Maximum
Charge Current.
Battery
is considered full after battery is absorbing less than 1% of maximum charge current after being
held at specified charge voltage for 30minutes minimum.
If PowerPlus Energy has released Custom Charge Settings for your connected PCE,
then these instructions
can be followed instead.
Eco P Series Installation Manual V3.0
21/10/2021
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