Warning
Please read this guide carefully to avoid incorrect connections that can cause the battery monitor to malfunction and/or create a fire hazard. Disconnect the negative pole of the battery before installation.
[Note] The Renogy Battery Monitor can't be exposed in the sun for a long time or in the environment with large amounts of ultraviolet radiation when using or storing, in winter (< -10°C) and summer (>60 °C) otherwise the life span of the LCD will be shortened.
Battery Safety
- Do NOT let the positive (+) and negative (-) terminals of the battery touch each other.
- Explosive battery gases may be present while charging. Be certain there is enough ventilation to release the gases.
- Be careful when working with large lead acid batteries. Wear eye protection and have fresh water available in case there is contact with the battery acid.
- It is the user's responsibility to operate the equipment in a safe manner. Do not charge batteries in an enclosed environment unless allowed by the manufacturer of the battery.
- Never connect a load to a battery without using fuses or circuit breakers.
- Please follow the battery manufacturer's safety instructions.
General Information
The Renogy Battery Monitor is a high precision device (also known as coulometer), which can test the voltage, current, and capacity of a battery to help users know the state of charge at any time. The Renogy Battery Monitor has a memory function which allows users to set a low voltage capacity alarm. It is suitable for mobile and portable equipment, e-bike, motorcycles, electric wheelchairs, and so on.
[Note] The Renogy Battery Monitor is suitable for lithium batteries, lead acid batteries and nickel-metal hydride batteries that have voltage from 10-120V.
Identification of Parts
Image of the Renogy Battery Monitor device.
LCD Interface
Shunt/Sampler Holder
500A Shunt/Sampler
20ft (6m) Shielded Wire
3ft (1m) 20 AWG B+ Wire
Dimension
Dimensional drawings of the Renogy Battery Monitor and the 500A Shunt/Sampler, showing measurements in inches and millimeters.
Installation
Connection/Setup
First, connect the Shunt in series to the negative circuit of your battery. B- of shunt connects to B- of the battery. P- of shunt connects to P- of output and C- of charge.
Then take a wire of 0.3-0.75 mm². One end of the wire connects to positive of battery, another end connects to B+ of Shunt (either one is ok).
Finally connect the Shunt to the Renogy Battery Monitor by the shielded wire and the screen of the Renogy Battery Monitor display should turn on.
Connection diagram illustrating how to connect the Shunt/Sampler to the battery and the Renogy Battery Monitor using the shielded wire. It shows connections for Battery B-, Battery B+, Shunt B-, Shunt B+, Shunt P-, and Shunt P+.
Attention: Please connect as shown. The shunt must be series connected to the negative circuit, DO NOT connect to the positive circuit.
Mounting
The Renogy Battery Monitor is fixed by tabs, so it is easy to install. First, open a rectangular orifice on your equipment panel according to the size. Then put The Renogy Battery Monitor into the rectangular orifice, and make sure the tabs are locked.
Panel cutout dimensions for mounting the monitor.
Operation
Interface Description
Diagram of the Battery Monitor's LCD interface, labeling 'Present capacity', 'Dynamic indication', 'Present voltage', 'Charge-discharge indicator', 'Capacity percentage', 'Remaining time', 'Present power', and 'Present current'.
Use Steps
Wiring and Checking the Current
Power on after the connection as shown in the figure. The battery voltage, current and capacity percentage should be displayed on the screen. If there is no display, the power should be turned off to check if the connection is correct. Then discharge or charge the battery and check if the current value and the actual value are consistent. If the error is large, check the wiring again. Make sure that all current flowing through the battery passes through the sampler.
Detection and Setting of Battery Effective Capacity
The battery's effective capacity (CAP) needs to be set correctly before first use, see "Usage Settings". If the effective capacity of the battery is unknown, you need to follow the steps below:
- Enter the capacity setting interface and set the capacity value as large as possible. (For example, it is set to 30Ah if the estimated value is 20Ah.)
- Empty the battery pack and clear the capacity of electric meter to zero, and then charge the battery pack.
- The display's capacity is set to the CAP of the electric meter when fully charged.
Capacity Homing
The capacity displayed on the electric meter is not the actual value of the battery after the first use or replacement of the battery. And zero or full capacity operation is required:
- Press and hold the button [checkmark] after the battery is discharged (empty) and the capacity value is cleared to 0%.
- Or Press and hold the button [up arrow] after the battery is full charged and the capacity value is set to 100%.
Then it will work as expected and you don't need to do this later.
User Settings
Press and hold the button [OK button] for 3 seconds to enter the settings.
Line cursor setting options: Capacity setting (CAP), Full capacity voltage (Full V), Zero-capacity voltage (Zero V), Shutdown voltage (PowOff), Low capacity alarm (Alarm), Battery attenuation ratio (Atten). Includes navigation instructions for selecting values.
CAP
Effective capacity of battery: The default is 100Ah. Please set according to the actual effective capacity of the battery pack, otherwise the capacity percentage display will be incorrect.
Full V
Full capacity voltage: When the voltage is higher than the set value, the capacity will be automatically set to 100%.
Zero V
Zero capacity voltage: The capacity value is automatically set to 0% if below this voltage. The voltage value will flash, and the buzzer will alarm once per 10s if the discharge continues.
PowOff
Shutdown voltage: Backlight and LCD OFF and no display if below this capacity.
Alarm
Low capacity alarm: The percentage and battery symbol will flash, and the buzzer will sound per 10s if below this capacity.
Atten
Battery attenuation ratio: After the battery Capacity cumulatively once per cycle, The capacity value is automatically changed according to this ratio.
Precautions
Do not set Full V and Zero V without knowing the voltage characteristics of battery pack (full voltage and vent voltage).
The default of Full V and Zero V is 0V. It is invalid.
While charging the battery, the LCD screen's backlight will also be slowly flashing. In order to turn off the backlight function, Long press front Keyboard can turn off the backlight, Long press again Keyboard can Wake up the backlight.
Troubleshooting
- When connecting the load, if the backlight is blinking, the B- and P- of the shunt are wired inversely.
- When the battery current is low the Renogy Battery Monitor will enter a low power (sleep mode) and the backlight will turn off, press any button and the backlight will turn on for 10s.
- When the current changes frequently the data acquisition may produce an error, and it may affect the accuracy.
- When charging or discharging. The Renogy Battery Monitor will be working and the capacity displayed will be real-time numbers.
Technical Specifications
| Description | Parameter |
|---|---|
| Working Voltage | 10.0 - 120.0 V |
| Working dissipation | 10.0 - 15.0 mA |
| Standby dissipation | 1.0 - 2.0 mA |
| Voltage accuracy | [plus-minus]1.0% |
| Current accuracy | [plus-minus]1.0% |
| Capacity accuracy | [plus-minus]1.0% |
| Backlight on current(>50A) | 100 mA |
| Preset capacity value | 0.1 - 9999.0 Ah |
| Temperature range | -10-60°C (14-140°F) |
| Weight (LCD Interface) | 2.6 oz / 75 g |
| Size (LCD Interface) | 3.9*2.4*0.7 inch (9.9*6.1*1.8 cm) |
| Shielded Wire | 20ft (6m) |
| B+ Wire | 3ft (1m) |
Contact Information
RENOGY.COM
Renogy reserves the right to change the contents of this manual without notice.
