1. Alaye Aabo
Please read all instructions and warnings in this manual carefully before installation and operation. Failure to follow these instructions may result in electric shock, fire, or severe injury. Keep this manual for future reference.
- Always wear appropriate personal protective equipment, including eye protection, when working with batteries and electrical systems.
- Ensure all connections are tight and secure to prevent loose connections that can cause excessive heat and damage.
- Do not operate the charger in wet or damp awọn ipo.
- Ensure adequate ventilation around the charger to prevent overheating.
- Disconnect all power sources before performing any maintenance or troubleshooting.
- Do not attempt to disassemble or repair the charger yourself. Contact qualified service personnel.
2. Ọja Ipariview
2.1 Key Awọn ẹya ara ẹrọ
- Ibamu Batiri Wapọ: The Renogy DC-DC charger is compatible with multiple alternator types and sub-battery types, including AGM, flooded, gel, and lithium-ion batteries.
- Smart 3-Stage gbigba agbara: This battery charger charges the sub-battery from the starter battery using a 3-stage charging process (bulk, boost, float), ensuring optimal and automatic 100% charge.
- Main Battery Over-Discharge Protection: The DC-DC battery charger identifies whether the generator is running, preventing over-discharge of the starter battery and protecting the main battery.
- Imudara Aabo: Provides over-voltage protection, over-temperature protection, and reverse polarity protection, ensuring safe operation. It also isolates input and output to prevent voltage transmission errors and protect the house battery from overcharging.
- Apẹrẹ ti o tọ: Features a compact and robust construction for reliable performance.
2.2 ọja Mefa

The image above shows the Renogy DC-DC Charger with its dimensions: 31.1 cm length, 17.5 cm width, and 6.8 cm height.
2.3 Parts Apejuwe

This diagram illustrates the various ports and indicators on the Renogy DC-DC Charger.
| # | Samisi | Apejuwe |
|---|---|---|
| 1 | Iṣawọle (+) | Main Battery Positive |
| 2 | Iṣawọle (-) | Main Battery Negative |
| 3 | Atọka agbara | Atọka Agbara LED |
| 4 | Atọka aṣiṣe | Error Indicator LED |
| 5 | S1 S2 S3 S4 S5 | Battery Type Setting Switch (DIP Switches) |
| 6 | RJ11 | Temperature Sensor Connection Port |
| 7 | D+ | Signal Line Connection Port |
| 8 | LC | Current Limit Port |
| 9 | Ijade (+) | Sub-battery Positive |
| 10 | Ijade (-) | Sub-battery Negative |
3. Eto ati fifi sori
3.1 Asopọ aworan atọka

This diagram illustrates the wiring connections for the DC-DC Charger in a typical RV setup, connecting to both the main (starter) battery and the sub-battery (house battery).
- DC-DC Charger ↔ Main Battery Wiring
- DC-DC Charger ↔ Sub-battery Wiring
- DC-DC Charger D+ Port ↔ Alternator D+ Terminal Wiring
Akiyesi: All wiring requires separate purchase. Cables are not included with this product; please prepare them separately if needed.
3.2 DIP Yipada Eto

The image shows the DIP switches used to configure the charger. By operating the 5 switches (S1-S5), you can adjust the battery type and charging voltage.
- S1 and S2: Set Absorption Voltage
- S3 and S4: Ṣeto leefofo idiyele Voltage
- S5: Set Charging Mode
3.3 Aṣayan Iwon USB

Refer to this table for recommended cable sizes and fuse ratings based on your specific DC-DC charger model and cable length.
| Awoṣe | USB | Kere Cable Iwon | Fiusi | |||
|---|---|---|---|---|---|---|
| DCC-1212-20 | Main Batiri | 0.61m 5.5sq | 2.44m 5.5sq | 4.88m 8.0sq | 9.75m 22sq | 30A |
| Batiri kekere | 0.61m 3.5sq | 2.44m 3.5sq | 4.88m 5.5sq | 9.75m 14sq | 25A | |
| DCC-1212-40 | Main Batiri | 0.61m 14sq | 2.44m 14sq | 4.88m 22sq | 9.75m 38sq | 60A |
| Batiri kekere | 0.61m 8.0sq | 2.44m 8.0sq | 4.88m 14sq | 9.75m 22sq | 50A | |
| DCC-1212-60 | Main Batiri | 0.61m 22sq | 2.44m 22sq | - | - | 90A |
| Batiri kekere | 0.61m 14sq | 2.44m 14sq | 4.8m 22sq | - | 75A | |
| D+/LC | 0.75~1.2SQ | |||||
3.4 D+ and LC Ports

The image highlights the D+ and LC ports on the charger.
- D+ Port: Connects to the alternator's D+ terminal for smart alternator detection.
- LC Port: By connecting to the LC port, the charging current can be limited by half. (Recommended cable size: 0.75~1.2SQ)
4. Isẹ
4.1 3-Stage Ilana gbigba agbara

The graph above illustrates the 3-stage charging process (Bulk, Absorption, Float) that fully charges the battery.
- Olopobobo: Gba agbara batiri naa ni agbara ina ti o pọju titi ti o fi de iwọn didun ti a ṣetotage.
- Gbigba: Awọn idiyele ni iwọn didun igbagbogbotage, reducing current as the battery approaches full charge.
- Leefofo: Maintains the battery at a constant, lower voltage to prevent self-discharge.
4.2 LED Atọka
The charger features LED indicators to communicate the charging status and battery type. Refer to the tables below for detailed explanations.
| Batiri Iru Atọka | ||
|---|---|---|
| Àwọ̀ | Ipo | Apejuwe |
| Alawọ ewe | ON | SLA (Aiyipada) |
| Yellow | ON | GEL |
| Pupa | ON | FLD (Flooded) |
| Buluu | ON | LI (Lithium) |
| Funfun | ON | User (Requires BT-2 Module and Renogy DC Home App) |
| Atọka Batiri Iṣẹ | ||
|---|---|---|
| Àwọ̀ | Ipo | Apejuwe |
| Alawọ ewe | ON | Batiri Kun |
| Yellow | ON | Batiri voltage deede |
| Pupa | ON | Batiri undervoltage |
| Pupa | Fifọ lọra | Batiri ti yọ kuro |
| Pupa | Iyara ìmọlẹ | Batiri lori voltage / lori iwọn otutu |
Akiyesi: Olufihan Ngba agbara le yipada labẹ awọn ipo wọnyi:
- Pupa si Yellow: Nigbati voltage de ọdọ 12.2V labẹ voltage imularada.
- Yellow to Red: Nigbati voltage ṣubu si 12.0V labẹ voltage ìkìlọ.
- Yellow si Alawọ ewe: A. Nigbati o ba de vol nigbagbogbotagipo gbigba agbara e, lọwọlọwọ gbigba agbara kere ju 3A, o duro fun awọn aaya 30; B. Nigbati lọwọlọwọ gbigba agbara ba ga ju 3A, o tọju gbigba agbara titi yoo fi de ọdọ vol nigbagbogbotage ipinle ati awọn ti isiyi sil below ni isalẹ 3A, na 30 aaya.
| Atọka / Atọka Gbigba agbara | ||
|---|---|---|
| Àwọ̀ | Ipo | Apejuwe |
| Alawọ ewe | ON | Alternator n ṣaja batiri iṣẹ naa |
| Pupa | Fifọ lọra | PV ngba agbara batiri ti n bẹrẹ lọwọ |
| PAA | Ko gbigba agbara | |
4.3 Alternator Type and Starting Battery Voltage
| Alternator Iru | Starting Battery Voltage | |
|---|---|---|
| Ge-ni | Ge kuro | |
| Ibile Alternator | >13.2V, for 15 seconds | <12.7V |
| Smart Alternator | >12.0V, for 15 seconds | <11.5V |
4.4 Charging Current Distribution (Solar + Alternator)
| Awoṣe | RBC30DIS | RBC50DIS |
|---|---|---|
| Solar nikan | 30A | 50A |
| Only Alt | 30A | 50A |
| Solar + ALT | 15A + 15A | 25A + 25A |
When using both solar and alternator inputs, the current is split. For example, the RBC30DIS model will provide 15A from solar and 15A from the alternator, totaling 30A.
5. Itọju
Regular maintenance ensures optimal performance and longevity of your Renogy DC-DC Charger.
- Periodically check all wiring connections for tightness and corrosion. Clean any corroded terminals.
- Inspect the charger for any physical damage or signs of overheating.
- Ensure the area around the charger is free from dust and debris to maintain proper ventilation.
- Verify that the battery type settings are correct for your installed batteries.
6. Laasigbotitusita
If you encounter issues with your DC-DC Charger, refer to the following basic troubleshooting steps:
- Ko si Agbara/Awọn LED Pipa: Check all battery connections and fuses. Ensure the starter battery voltage is above the cut-in threshold.
- Error Indicator On: Refer to the LED Indicators section (4.2) for the specific error type (over-voltage, over-temperature, reverse polarity, etc.) and take corrective action.
- Batiri Ko Ngba agbara: Verify that the correct battery type is selected using the DIP switches. Check solar panel connections and output, and ensure the alternator is functioning correctly.
- Reduced Charging Current: Ensure the LC port is not connected if full current is desired. Check cable sizes against recommendations in section 3.3.
For persistent issues, please contact Renogy customer support.
7. Awọn pato
| Sipesifikesonu | Iye |
|---|---|
| Brand | IGBESANJU |
| Àwọ̀ | Dudu |
| Awọn iwọn Ọja (D x W x H) | 17.5 x 31.1 x 6.8 cm |
| O wujade Voltage | 12 Volts |
| Awọn Ilana Ibamu | CE, RoHS |
| Ti won won Lọwọlọwọ | 60 Amps |
| Nọmba awoṣe olupese | RNG-DCC1212-60-JP |
| GTIN (Nọ́mbà Ìdámọ̀ Ìṣòwò Àgbáyé) | 00810009715924 |
| UPC | 810009715924 |
| Ọja Iru | DC-DC Ṣaja |
| Awọn irinše to wa | Japanese Instruction Manual, DC-DC Charger Unit |
8. Official ọja Video
This video provides a visual guide on how to install and connect the Renogy DC-DC MPPT Charger, demonstrating connections to a starter battery, a lithium house battery, and a solar panel. It also covers setting battery types and understanding LED indicators for charging status.
9. Atilẹyin ọja ati Support
Ọja yi wa pẹlu kan 1-odun olupese ká atilẹyin ọja.
For any questions or support regarding your Renogy DC-DC Charger, please contact our customer service team:
- Foonu: 1-909-287-7111 (M-F 8:30am-5pm PST)
- Webojula: https://www.renogy.com
- Imeeli: atilẹyin@renogy.com