RENOGY RBC20D1U DC Battery Charger Owner's Manual

Owner's Manual for RENOGY models including: RBC20D1U DC Battery Charger, RBC20D1U, DC DC Battery Charger, Battery Charger, Charger

Renogy 12V 20A/40A DC-DC Battery Charger

10 oct. 2024 — Read the quick guide carefully before operation and save it for future reference. Failure to observe the instructions or precautions in the quick guide can ...

Oct 10, 2024 — Read the quick guide carefully before operation and save it for future reference. Failure to observe the instructions or precautions in the quick guide can ...

Oct 10, 2024 — For how to distinguish a smart alternator from a traditional one, see the user manual of the battery charger. ... All information in the quick guide is subject to ...

File Info : application/pdf, 33 Pages, 3.53MB

QG RENOGY 12V 20A40A Battery Charger A0 ?srsltid=AfmBOopPnLx66K20RX6j-Bx3EdLOiK9NPXM8jUbStipHz1G--0zWmL1r

Renogy
DC-DC Battery Charger
12V 20A/40A
RBC20D1U/RBC40D1U

VERSION A0 October 10, 2024

QUICK GUIDE

Before Getting Started
The quick guide provides important operation and maintenance instructions for Renogy 12V 20A/40A DC-DC Battery Charger (hereinafter referred to as battery charger).
Read the quick guide carefully before operation and save it for future reference. Failure to observe the instructions or precautions in the quick guide can result in electrical shock, serious injury, or death, or can damage the battery charger, potentially rendering it inoperable.

Online Manual

Quick Guide

User Manual

Table of Contents
What's In the Box?............................................................................................................................ 1 Dimensions .......................................................................................................................................2 Get to Know Renogy Battery Charger ...........................................................................................3 System Setup ...................................................................................................................................5 Required Tools..................................................................................................................................6 Step 1. Wear Insulating Gloves .......................................................................................................6 Step 2. Plan a Mounting Site........................................................................................................... 7 Step 3. Connect the Battery Charger to an Auxiliary Battery ...................................................8 Step 4. Connect the Battery Charger to a Starter Battery ......................................................10 Step 5. Install a IGN Signal Wire (for Smart DC Alternator)....................................................... 12 Step 6. Install a Battery Temperature Sensor............................................................................ 13 LED Indicators................................................................................................................................14 Set a Battery Type ......................................................................................................................... 16 USER Mode...................................................................................................................................... 17

Monitor the Battery Charger........................................................................................................ 18 Short-Range Monitoring via DC Home App ................................................................................. 20 Wireless Long-Range Monitoring.................................................................................................... 21
Important Safety Instructions ................................................................................................... 22 Renogy Support ............................................................................................................................ 24 FCC Statement.............................................................................................................................. 26 FCC Radiation Exposure Statement............................................................................................27 Disclaimer .......................................................................................................................................27

What's In the Box?
Renogy 12V 20A/40A DC-DC Battery Charger × 1

Renogy
DC-DC Battery Charger 12V 20A/40A
RBC20D1U/RBC40D1U

VERSION A0 October 10, 2024

QUICK GUIDE
Quick Guide × 1

ST4*16 mm Mounting Screws x 4

Battery Temperature Sensor (2 m) × 1

IGN Signal Wire (3 m) × 1

Make sure that all accessories are complete and free of any signs of damage.
The accessories and product manual listed are crucial for the installation, excluding warranty information and any additional items. Please note that the package contents may vary depending on the specific product model.

-- 1 --

Dimensions
20A DC-DC Battery Charger (RBC20D1U)

40A DC-DC Battery Charger (RBC40D1U)

2.75 in (70 mm) 3.56 in (90.5 mm)

8.56 in (217.5 mm) 9.31 in (236.5 mm)
1.59 in (40.5 mm)
5.17 in (131.5 mm) Dimension tolerance: ±0.2 in (0.5 mm)
-- 2 --

8.56 in (217.5 mm) 9.31 in (236.5 mm)
1.59 in (40.5 mm)
6.00 in (152.5 mm)

Get to Know Renogy Battery Charger
Battery Type Indicator Fault Status Indicator Battery Status Indicator

Battery Type Setting Button Positive Output Terminal

Negative Output Terminal Mounting Hole RS485 Communication Port

-- 3 --

Mounting Hole
Battery Temperature Sensor (BTS) port

Positive Input Terminal

Mounting Hole

Negative Input Terminal

IGN Signal Wire Port

Mounting Hole

The Battery Temperature Sensor (BTS) port can only be used with lead-acid batteries.

-- 4 --

System Setup
Positive

Negative

Temperature

Communication

IGN Signal

+Starter Battery

IGN
2
Bluetooth Module
Smart DC Alternator Renogy BT-2 Bluetooth Module

12V Auxiliary Battery

-- 5 --

Required Tools

3 4 5 6

Phillips Screwdriver (#1)

Insulating Gloves

Measuring Tape

Insulation Tape

Prior to installing and configuring the battery charger, prepare the recommended tools, components, and accessories.

Step 1. Wear Insulating Gloves

Insulating Gloves

-- 6 --

Step 2. Plan a Mounting Site
The battery charger requires adequate clearance for installation, wiring, and ventilation. The minimum clearance is provided below.

5.91 in (150 mm)

5.91 in (150 mm)
5.91 in (150 mm)

5.91 in (150 mm)

-40°F to 185°F -40°C to 85°C

0% to 95%
KEEP DRY

FRAGILE VENTILATION

INDOOR

The battery charger should be installed on a flat surface protected from direct sunlight.

-- 7 --

Step 3. Connect the Battery Charger to an Auxiliary Battery
The battery charger can only be connected to deep-cycle gel-sealed lead-acid batteries (GEL), flooded lead-acid batteries (FLD), sealed lead-acid batteries (SLD/AGM), or lithium iron phosphate batteries (LI).

Recommended Components & Accessories

9V to 16V
+

RBC20D1U: 30A RBC40D1U: 40A

RBC20D1U: 10 AWG RBC40D1U: 8 AWG

*12V Battery

*ANL Fuse × 1

M10

Battery Adapter Cables × 2

M10 Fuse Cable × 1

Accessories marked with "*" are available on renogy.com.
For installation details, see the user manual of the battery in use.
To ensure optimal system performance, a 10 AWG/8 AWG cable should be no longer than 3 meters. Choose higher gauge cables for longer distances. For details, see the user manual of the battery charger at www.renogy.com/support/downloads.

-- 8 --

STEP-1 Install cables on the battery charger

STEP-2 Install an ANL fuse

STEP-3 Install the cables on the battery

-- 9 --

Battery Adapter
Cable

ANL Fuse
Fuse Cable

Auxiliary Battery

Step 4. Connect the Battery Charger to a Starter Battery
Before installing the charger, consult your vehicle's user manual or contact the vehicle manufacturer to ensure that the alternator power does not exceed 720W with the output current within the range of 75A to 100A.

Recommended Components & Accessories

RBC20D1U: 40A RBC40D1U: 80A

RBC20D1U: 8 AWG RBC40D1U: 6 AWG

*ANL Fuse × 1

M10

Battery Adapter Cables × 2

M10 Fuse Cable × 1

Accessories marked with "*" are available on renogy.com.

Traditional DC Alternator (IGN connection not required): The starter battery begins charging the auxiliary battery when its voltage reaches 13.2V & 15s and stops charging when the voltage drops to 12.7V.
Smart DC Alternator (IGN connection required): The starter battery begins charging the auxiliary battery when its voltage reaches 12V & 15s and stops charging when the voltage drops to 11V.
-- 10 --

STEP-1 Install cables on the battery charger

STEP-2 Install an ANL fuse

STEP-3 Install the cables on the RV starter battery

-- 11 --

Battery Adapter
Cable
ANL Fuse
Fuse Cable +-
Starter Battery

Step 5. Install a IGN Signal Wire (for Smart DC Alternator)
IGN signal wiring is required for smart alternators only. For how to distinguish a smart alternator from a traditional one, see the user manual of the battery charger. If the DC alternator of the vehicle is a smart alternator, insert the IGN Signal Wire connector into IGN signal wire port, and then connect the other end to the smart alternator's ignition signal port.
Consult the RV supplier for wiring details.
IGN Signal Wire
Smart DC Alternator
-- 12 --

Step 6. Install a Battery Temperature Sensor
The temperature sensor measures the surrounding temperature of the battery and compensates the floating charge voltage when the battery temperature is low.
Do not use the temperature sensor on a LiFePO4 (LFP) battery which comes with a battery management system (BMS). Mount the sensor securely
at a suitable location in close proximity to the battery.
Battery Temperature Sensor
-- 13 --

LED Indicators

The battery charger turns on automatically after power on with the LED indicators working in accordance with the relative operating status.

Battery Status Indicator
Solid: The battery charger is in standby mode*, or the auxiliary battery is fully charged.
Flash: Charging the auxiliary battery

Battery Type Indicator
Solid: SLD/AGM
Solid: GEL
Solid: LI (lithium battery activation disabled)

Fault Status Indicator
Off: No fault
Slow flash: Reverse contact protection for starter battery

Solid: LI (lithium battery activation enabled)
Solid: User Mode
Solid: FLD

Solid: Overtemperature protection for auxiliary battery
Slow flash: Overtemperature protection for battery charger
Fast flash: Overvoltage protection for auxiliary battery Jumping flash: Overdischarge shutdown protection for auxiliary battery

Standby Mode*: The battery charger is only connected to the auxiliary battery, and the auxiliary battery voltage is greater than 12V.

-- 14 --

Graphic indications of ON and OFF LED ON

LED OFF

Graphic expression of Solid, Slow Flash, Fast Flash, and Jumping Flash

LED Pattern Solid
Slow Flash Fast Flash Jumping Flash

Description
The LED remains continuously illuminated without any variation.
In this mode, the LED alternates between being on and off at a relatively slow and regular interval of 1s.
In this mode, the LED alternates between being on and off at a relatively fast and regular interval of 0.1s.
In this mode, the LED alternates between brief 0.5s on-off cycles followed by a longer 2.5s off period.

Graphic Expression

0.1s 0.1s 0.2s

0.5s 0.5s 0.5s

2.5s

-- 15 --

Set a Battery Type
Upon installing the battery charger, set a correct battery type by using the Battery Type Setting Button.

It is essential to ensure that the battery type setting is configured correctly to avoid any potential damage to the battery charger because any damage to the battery charger resulting from an incorrect battery type setting voids the warranty.

SLD/AGM Sealed Lead Acid Battery

GEL

(Lithium battery

Gel Battery activation disabled)

FLD Flooded Battery

User Mode

Custom Battery (Lithium battery

activation enabled)

-- 16 --

USER Mode
Setting the battery type to User Mode allows you to customize your battery parameters. You can modify the parameters in the DC Home app.
RBC20D1U
User
When customizing settings, consult the user manual provided by the battery manufacturer. If necessary, contact the manufacturer for further assistance. For detailed parameter settings, see the user manual of the battery charger at renogy. com/support/downloads.
-- 17 --

POWER LINK
2
Bluetooth Module

Monitor the Battery Charger
Recommended Components
2
Bluetooth Module
*Renogy BT-2 Bluetooth Module
Accessories marked with "*" are available on renogy.com. Before adding this product to the DC Home app or Renogy ONE, please ensure that both the app version and the firmware version of Renogy ONE have been updated to the latest version. You can customize the charging current through the DC Home app.
-- 18 --

Download the DC Home app. Login to the app with your account.

DC Home App

Download on the
The version of the DC Home app might have been updated. Illustrations in the user manual are for reference only. Follow the instructions based on the current app version. To ensure optimal system performance, keep the phone or RENOGY ONE within 10 feet (3 m) of the battery charger. You can receive fault alarms on DC Home and Renogy ONE when the battery charger is faulty. Please login to the DC Home app or Renogy ONE for troubleshooting details.

-- 19 --

Short-Range Monitoring via DC Home App
Pair the battery charger with the DC Home app. Monitor and modify the parameters of the battery charger via the app.

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-- 20 --

Wireless Long-Range Monitoring
Recommended Components

*RENOGY ONE Core

2
Bluetooth Module
-- 21 --

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Important Safety Instructions
General z Wear proper protective equipment and use insulated tools during installation and operation.
Do not wear jewelry or other metal objects when working on or around the battery charger. z Keep the battery charger out of the reach of children. z Do not dispose of the battery charger as household waste. Comply with local, state, and
federal laws and regulations and use recycling channels as required. z In case of fire, put out the fire with a FM-200 or CO fire extinguisher. z Installing the battery charger improperly on a boat may cause damage to components of the
boat. Have the devices installed by a qualified electrician. z Do not expose the battery charger to flammable or harsh chemicals or vapors. z Clean the battery charger regularly. z Do not puncture, drop, crush, penetrate, shake, strike, or step on the battery charger. z Do not open, disassemble, repair, tamper with, or modify the battery charger. z Connect the negative prior to the positive terminal when connecting any device. z It is recommended that all cables should not exceed 10 meters because excessively long
cables result in a voltage drop. z The cable specifications listed in the quick guide account for critical, less than 3% voltage
drop and may not account for all configurations.
-- 22 --

Battery Charger Safety z Install the battery charger on a vertical surface - protected from direct sunlight, high
temperatures, and water. Make sure there is good ventilation. z Keep the battery charger away from heating equipment. z Do not insert foreign objects into the battery charger. z Confirm the polarities of the devices before connection. A reverse polarity contact can result
in damage to the battery charger, thus voiding the warranty. z Do not touch the connector contacts while the battery charger is in operation. z Disconnect all connectors from the battery charger before maintenance or cleaning. Battery Safety z Do not use batteries if there is any damage. z Do not touch the exposed electrolyte or powder if the battery is damaged. z Risk of explosion! Never install the battery charger in a sealed enclosure with flooded
batteries! Do not install the battery charger in a confined area where battery gases can accumulate. z Prior to installing the battery charger, ensure all battery groups are installed properly.
-- 23 --

Renogy Support

To discuss inaccuracies or omissions in this quick guide or user manual, visit or contact us at:

renogy.com/support/downloads

contentservice@renogy.com

Questionnaire Investigation

To explore more possibilities of solar systems, visit Renogy Learning Center at: renogy.com/learning-center
-- 24 --

For technical questions about your product in the U.S., contact the Renogy technical support team through:

renogy.com/contact-us

1(909)2877111

For technical support outside the U.S., visit the local website below:

Canada Australia United Kingdom

ca.renogy.com au.renogy.com uk.renogy.com

Japan Germany Other Europe

jp.renogy.com de.renogy.com eu.renogy.com

-- 25 --

FCC Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference. (2) This device must accept any interference received, including interference that may cause undesired operation.
Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
(1) Reorient or relocate the receiving antenna. (2) Increase the separation between the equipment and receiver. (3) Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. (4) Consult the dealer or an experienced radio/TV technician for help.
-- 26 --

FCC Radiation Exposure Statement
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body.

Disclaimer

RENOGY and

are registered trademarks of Renogy.

z All information in the quick guide is subject to copyright and other intellectual property rights of Renogy and its licensors. The quick guide may not be modified, reproduced, or copied, in whole or in part, without the prior written permissions of Renogy and its licensors.
z The registered trademarks in the quick guide are the property of Renogy. The unauthorized use of the trademarks is strictly prohibited.
z Renogy ensures the accuracy, sufficiency, and the applicability of information in the quick guide at the time of printing due to continual product improvements that may occur.

-- 27 --

z Renogy assumes no responsibility or liability for personal and property losses, whether directly and indirectly, caused by the user's failure to install and use the product in compliance with the quick guide.
z Renogy is not responsible or liable for any failure, damage, or injury resulting from repair attempts by unqualified personnel, improper installation, and unsuitable operation.
z The illustrations in the quick guide are for demonstration purposes only. Details may appear slightly different depending on product revision and market region.
z Renogy reserves the right to change the information in the quick guide without notice. For the latest quick guide, visit renogy.com.
-- 28 --

Renogy Power PLUS
Renogy Power Plus allows you to stay in the loop with upcoming solar energy innovations, share your experiences with your solar energy journey, and connect with like-minded people who are changing the world in the Renogy Power Plus community.

@Renogy Solar

@renogyofficial

@Renogy

Renogy reserves the right to change the contents of this quick guide without notice.

RENOGY.COM

References

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