Settinging For Victron MPPT:
Settings for Victron MPPT Charge Controllers:
Battery Voltage: Set depending on system, normally 12v.
Max Charge Current: OK to set as high as desired, but no more than 50a per battery
Charger: Enabled
Battery Preset: User Defined
Expert Mode: ON
Absorption Voltage: 14.6v
Float Voltage: 13.8v
Equalization Voltage: 14.6v
Rebulk Voltage Offset: 0.40v
Absorption Duration: Fixed
Absorption Time: 15 Minutes (This allows for proper cell balancing)
Tail Current: Disabled
Equalize Current: 0% (For safety we don’t want equalization at all.)
Automatic Equalization: Disabled
Equalize Stop Mode: Automatic (On voltage)
Maximum Equalize duration: 0 Minutes
Manual equalization: DO NOT CLICK START
Temperature Compensation: Disabled
Low Temperature Cutoff: Disabled (unless you add a temp sensor, the BMS has this protection built in)
Settings for Renogy Charge Controller (Wanderer, etc.)
IMPORTANT: For battery type, select “USER”
High Voltage Disconnect: 15.0
Charge Limit Voltage: 14.6v
Equalize Charge Voltage: 14.4
Boost Charge Voltage: 14.6v
Float Charge Voltage: 13.8v
Boost Charge Return Voltage: 13.4
Over Discharge Return Voltage: 12.0v
Low voltage Alarm:11.8v
Over Discharge Voltage: 11.0v
Discharge Limit Voltage: 10.5
Over Discharge Delay Time: 5 Seconds
Equalize Charge Time: 0
Boost Charge Time: 15 Minutes
Equalize Charge Interval: 0
Temperature Compensation: 0
Setting for Epever solar charge controller
Select the “User” battery type.
Press the “ENTER” button and hold 5s under the battery voltage interface.
Press the “SELECT” button when the battery type interface is flashing.
Press the “ENTER” button to confirm the battery type.
Over Voltage Disconnect 14.7 V
Charging Limit Voltage 14.6 V
Over Voltage Reconnect 14.6 V
Equalize Charging Voltage shut off or 14.4 V
Boost Charging Voltage 14.6 V
Float Charging Voltage 13.6 V
Boost Reconnect 13.3 V
Low Voltage Reconnect 10
Under Voltage Warning Reconnect Voltage 11.5
Under Voltage Warning 11.5
Low Voltage Disconnect 11.0
Discharging Limit Voltage 10.5
Equalize Duration 0
Boost Duration 180 minutes
What about a very inexpensive Rich 20 amp MPPY?