Renogy 12V 20A DC to DC On-Board Battery Charger
Description
The DC-DC Battery Chargers are the most effective way to charge your house batteries from the starter battery. Compatible with a multitude of alternator types, the DC-DC battery charger offers correct charging for AGM, Flooded, Gel, and even Lithium deep cycle batteries!
Featuring a 3-stage battery charger and multiple electronic protections, users can feel confident that their batteries are being charged optimally and automatically. For additional safety, it isolates the input from the output preventing incorrect voltage transmission. Easily install the compact yet sturdy DC-DC battery charger on RV's, commercial vehicles, boats, yachts, and many more applications!
| PRODUCT HIGHLIGHTS | |
| Compatible Multiple Battery Types | Compatible with a multitude of alternator types, the DC-DC battery charger offers correct charging for AGM, Flooded, Gel, and Lithium batteries. |
| Smart 3-stage Charging | The DC-DC battery charger will charge your house batteries from the starter battery by 3-stage charging (Bulk, Boost, and Float), to make sure it optimally and automatically charge to 100%. |
| Various Protections For Ultra Safety | The DC-DC battery charger isolates the input and output to prevent voltage transmission errors and interfere with house battery charging. It has multifunctional safety technology including over-voltage protection, over-temperature protection, and reverse polarity protection to make it safer for use. |
| Protect Your Starter Battery | This Renogy DC-DC battery charger is compatible with traditional and smart alternators. The D+ Ignition cable is capable of identifying whether the generator is started, to prevent over-discharge of the starting battery and protect the generator. 18-16AWG copper cable recommended. |
| Protect Your House Battery | The LC wire can automatically adjust the charging current to prevent excessive charging current from damaging the house battery. 18-16AWG copper cable recommended. Please note the LC cable is not included. |
| Prolonged Battery Lifespan | The charger needs to select the charging mode according to the battery voltage. By utilizing the DC-DC temperature sensor, this charger is able to protect your battery from high or low temperature by giving -3mV/°C/2V compensation so that the charger recognizes the voltage more accurately and assures stable and constant charging to the battery. Please note the temperature sensor is not included and it cannot use with Lithium batteries. |
Note:
FAQ
What is a DC-DC charger? What is its purpose?
A DC-DC battery charger is installed between the starter battery and the house battery in an RV system. Its purpose is to ensure a stable power supply to the starter battery and use any excess power from the starter battery to supply power to the house battery.
How to choose a suitable battery charger?
Make sure that the entire system is a 12V system.
Ensure that the maximum charging current provided by the DC-DC battery charger does not exceed the maximum charging current allowed by the house battery.
How to set the charging voltage value of the charger?
The DC-DC battery charger is designed with a DIP switch that provides 6 charging voltage settings through five gears. These six charging voltages meet the requirements of lithium batteries and lead-acid batteries, offering more charging options. The SW5 switch is the selection switch for switching between lead-acid batteries and lithium batteries.
What is the D+ Ignition cable? Is it necessary to connect?
The D+ Ignition cable is a design method used to identify whether the generator is started. This design method prevents the starting battery from being over-discharged during the charging process. When the generator is started, a signal will be obtained on the D+ Ignition cable, which will light up the charger's indicator light.
The DC-DC charger will not power on or operate until the D+ ignition cable is connected.
How can I get these cables?
The battery temperature sensor for DC-to-DC car battery chargers can be purchased at the Renogy store. The D+ ignition cable can be purchased at the local store or online, and it suits both D+ and LC terminals. We recommend using 18-16AWG copper cable.
SPECIFICATIONS
| System Voltage | 12VDC |
| Rated Charge Current | 20A |
| Rated Max Power | 250W |
| Idle Power Consumption | <0.4A |
| Input Voltage Range | 8V-16V |
| Weight | 3 lbs. / 1.3 kg |
| Equalization Voltage | N/A |
| Float Voltage | 13.2-13.8v |
| Boost Voltage | 14.1-14.7v |
| Operating Temperature | -20°C to +50°C |
| Dimensions | 8.3 x 6.9 x 2.7 in / 211 x 175 x 68 mm |
| Certification | CE ROHS |
| Accessories | 1-year material warranty |
PRODUCT DOCUMENTATION
Shipping
Orders are processed within 72 hours. We do our best to ship as quickly as possible. You can expect delivery within 7 to 14 business days from order to delivery (US). For more info please see our Shipping policy.
Larger Freight items: Shipping times depend on the destination & the size of the order. Please contact us for shipping time estimates or for a custom freight quote.
Warranty
Full Manufacturer warranty included.
100% protected against defects or malfunctions with full manufacturer warranty.
Our dedicated customer service team is always available to assist you with help locating warranty information for any product, ensuring a smooth resolution process.
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How long will it take to get my order?
Most orders are processed within 72 hours. Delivery to US mainland can range from 3-7 business days.
Larger freight / back stock orders might require extra processing time.
You will receive your tracking information via e-mail as soon as your order ships.
Do you ship overseas?
Yes, we ship all over the world. Shipping costs will apply, and will be calculated at checkout.
For large freight items, please contact us for a custom quote.
Customer is responsible for all import fees imposed by their respective country.
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Other locations: shipping rates are calculated at checkout.
For larger freight orders, please contact us to inquire about shipping & special requests.
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You could apply for a 30% Federal Tax credit, When you install a solar system in your home.