Minimum Battery Sizing Recommendations - Victron Pylontech US2000B Manual

Last update:
battery_compatibility:pylontech_phantom https://www.victronenergy.com/live/battery_compatibility:pylontech_phantom
2019-02-18 22:06
MPPTs. There are regular updates to improve performance and reliability.
1.3 All 48V Multi, MultiPlus, MultiGrid and Quattro are compatible
The minimum firmware version is 422. Though updating to the latest firmware is recommended where
possible.
These inverter/charger units must be connected to the
1.4 All 48V VE.direct BlueSolar and SmartSolar MPPT Chargers are compatible
For proper operation, the Pylontech battery needs to be able to control the charge current. Therefor it
is recommended to use Victron 48V compatible MPPTs models with VE.Direct port for charging.
MPPTs with a VE.Direct port
MPPTs are controlled via the Venus-device. Make sure the
MPPTs to 1.37 or the latest available version.
The MPPT requires connection to the
require (due to temperature, etc) To test operation, try disconnecting the
MPPT. After a time-out, the MPPT will stop charging and flash an error code on its LEDs. The error
code is error #67: no
MPPTs with a VE.Can port
Use of VE.Can MPPT's with Pylontech batteries is not supported or documented.

2. Minimum Battery Sizing Recommendations

Each US2000B Plus battery module is approximately 50Ah at 48V, can provide 25A continuous charge
and discharge and 100A peak for 1 minute.
The charge and discharge rates are managed automatically by the Pylontech battery and
device.
Using very large solar arrays with battery banks that are too small can exceed the limits of the
batteries ability to charge and possibly lead to the BMS triggering over-current alarms.
You must have the minimum number of units to supply the potential current demand of the load
connected to the inverter. It is more desirable to have the inverter/charger overload than the battery.
Some suggested battery sizings for common Victron inverter/chargers are listed below. These are
suggestions for reliable operation for single phase off grid and are not specified by Pylontech.
https://www.victronenergy.com/live/
Venus-device
BMS.
Venus-device via the VE.Bus connection port.
Venus-device
to regulate charge currents as the batteries
runs v2.15 or later, and the
Venus-device from the
Venus-
Printed on 2019-02-19 08:06