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Not recommended. the battery voltage that every controller detected has a minor difference. When the battery is nearly full, it is possible that some controllers are charging, and others not, or some are charging with a big current and others are charging with a small current.

13 July 2021

Can multiple units be connected in parallel to charge the same battery bank?

Not recommended. the battery voltage that every controller detected has a minor difference. When the battery is nearly full, it is possible that some controllers are […]
13 July 2021

Can the lithium battery be chosen via the LCD and button on the controller?

Yes, the XTRA series charge controller (softwareSV200 or above version ) supports choosing lithium battery via LCD. But WiFi/Bluetooth module or PC is required if the […]
13 July 2021

Why the charge controller will have noise when the battery is nearly getting full?

When the battery is nearly full, in order to prevent the battery from overcharging, the PWM controller will adjust the switching frequency of MOS to adjust […]
13 July 2021

Can all settings be done via the buttons on the unit?

Yes, all parameters can be set via the LCD and buttons on the charge controller
13 July 2021

What's the type of display?

The display of VS-BN is dot-matrix LCD which can show the data more vividly.
13 July 2021

Is the USB output controlled by the load mode?

Yes, the USB output is the same as load output which is controlled by load mode(Manual, Light ON/OFF, Light ON/OFF+Timer, Time ). If the load is […]
13 July 2021

What is the rated current of the USB output? Would it be damaged if overloaded?

The two USB ports are paralleled, the total power is 2.4A/5V, so it is 2.4A/5V too if the only USB port is used. If overloaded, there […]
13 July 2021

Is the Max. charge or discharge current settable?

Yes. This series can not only set the total charging and discharging limiting current of the battery but also set the charging current of the utility. […]
13 July 2021

Can the product operate with PV or Utility only, but without battery?

Yes, it has no No-Battery mode. The parameters can be set without a battery connection.
13 July 2021

Can the product work with lithium battery without communicating with BMS?

Yes. The inverter can work with a lithium battery without communicating with BMS. However, the real-time monitoring data and protection point will be the sampling data […]
13 July 2021

Does upower support lithium battery?

No, Upower supports a sealed battery. It is not compatible with lithium batteries.
13 July 2021

Can utility charging and inverter output run run at the same time?

Yes. The utility charging circuit (AC-DC) and inverter output circuit (DC-AC)are independent. The inverter output can be used while the utility is charging, in this case, […]
13 July 2021

What are the accessories to set the parameters of the controller?

RC-10 and RC-11
13 July 2021

How to choose the controller according to the LED lamp?

① Make sure the LED street lights do not have a built-in LED driver. ② Make sure the rated output voltage of the charger is higher […]
13 July 2021

Can it be used in LED street lights?

Yes, it has a built-in LED driver which can work with LED lights that have no drivers.
13 July 2021

Can discharging and charging run at the same time?

No, because the charging and discharging share the same circuit designed to perform charge during the day and discharge at night.
13 July 2021

Can it work with MT50?

Yes, use EPEVER cable CC-RS485-RS485-150U-4LLT
13 July 2021

Can it be used in LED street lights?

Tracer-BP can work with LED light, but the condition is that the LED lights must have a built-in LED driver.
13 July 2021

How to connect it to the PC for configuration?

Use EPEVER cable CC-USB-RS485-150U-4LLT
13 July 2021

What is the red indicator used for?

It is a load on/off button and indicator, load on/off control can be done with this button when the Load Working mode is Manual.
13 July 2021

Does Tracer-BN support lithium battery?

Not supported, Tracer-AN/TRIRON/XTRA support lithium battery
13 July 2021

Can I have both MT50 and WiFi module in the system?

The Tracer-AN (50A ~ 100A) has two communication ports but that's for easy daisy chain connection when multiple chargers are connected together, directly connecting MT50 and […]
13 July 2021

Can multiple units be connected in parallel to charge the same battery bank? how?

Max. 6 chargers can be connected in parallel, parallel managing module PAL-ADP-50AN is needed for better state syn between chargers, e.g., all chargers go to Float […]
13 July 2021

Can I set Max. charge current?

No such feature, the only way to limit the Max. charge current is to connect fewer solar panels.
13 July 2021

Why battery current is negative on the LCD?

Negative battery current means battery is discharging, this could happen when no PV or PV power is not enough to power the loads.
13 July 2021

Would the unit be damaged if the battery polarity is reversed?

It is required to connect the battery first, if the battery polarity is reversed in this step, the controller has the protection and would not be […]
13 July 2021

Can the inverter output be connected to the Grid?

TPower is an off-grid inverter, not allowed to connect to the Grid.
13 July 2021

Can inverter be installed horizontally?

It is ok, as long as the ventilation conditions are good.
13 July 2021

Can the two Load output ports be connected in parallel so that a heavier load can be powered?

It is forbidden to connect the outputs in parallel or series, or the inverter will be damaged. The inverter works standalone only.
13 July 2021

Can Load1 and Load2 be set with different output voltage , e.g., one with 12V and the other with 24V? Can such setting be performed when the unit is on?

Yes. Both load output voltages can be set as 12V or 24V independently. The setting will take effect immediately.
13 July 2021

How to enter into the No-battery mode and what should I pay attention to in No-battery mode?

To enter into No-Battery mode, it needs to use Windows PC software or remote meter MT92 to choose "Auto" for Rated System Voltage. In No-Battery mode, […]
13 July 2021

Why constant voltage output is needed?

Some electronics (e.g., surveillance cameras) might be sensitive to a high or low power source, constant voltage output is the best for these loads.
13 July 2021

What is constant voltge output?

Constant voltage output means that the load output voltage remains constant regardless of the battery voltage value.