Renogy 40A 12V DC to DC On Board Battery Charger Flooded Gel AGM LFP Battery RV

Description

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Renogy offers a variety of shipping methods as listed below as well as free ground shipping on many of our products. Any items that qualify for free shipping will be identified on the product listing page. Shipping times are based on business days (Monday to Friday) excluding Holidays and weekends. Depending on your order, your purchase may arrive in multiple packages. For orders with a value of 0 or more, a signature may be required.
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At Renogy, we work hard to ensure a positive shopping experience with us. For purchases made directly from our online store, if for any reason you are not fully satisfied with your purchase, you may return your products with original package within 30 days as long as they are new, undamaged, and unmodified. We cannot guarantee that your item will be accepted for a refund or exchange if it does not meet these requirements. Return requests outside of 30 days require special authorization.
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REPLACEMENT POLICY
If you have received a defective product or one damaged during shipping, you are eligible for a refund or replacement.
In the event of a replacement, Renogy will arrange for return shipment of the defective unit, and once the part has been received and inspected, we will ship out the replacement part.
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- 12V 40A DC to DC On-Board Battery Charger -
categories
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.
Specification
System Voltage: 12VDC
Rated Charge Current: 40A
Rated Max Power: 500W
Idle Power Consumption: 0.4A
Input Battery Voltage Range: 8V-16VDC
Operating Temperature: -20°C to +50°C
Temperature Compensation: -3mV/C° /2V
Dimension: 10.3 x 6.9 x 2.7 in / 261 x 175 x 68 mm
Weight: 4 lbs. / 1.9 kg
2-year Material and workmanship warranty
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.
Please note the D+ Ignition Cable is
not included
.
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
.
Prolong 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.
This diagram shows the whole connection of the DC - DC Battery Charger.
Specification
Manual
Specification
Renogy 12V 40A DC-DC Battery Charger
System Voltage:
12VDC
Equalization Voltage:
N/A
Rated Charge Current:
40A
Float Voltage:
13.2-13.8v
Rated Max Power:
500W
Boost Voltage:
14.1-14.7v
Idle Power Consumption:
＜0.4A
Operating Temperature:
-20°C to +50°C
Input Voltage Range:
8V-16V
Dimensions:
10.3 x 6.9 x 2.7 in / 261 x 175 x 68 mm
Weight:
4 lbs. / 1.9 kg
Certification:
CE/ROHS
Warranty
FAQs
Q/A
1. What is a DC-DC charger? What is its purpose?
The DC-DC battery charger is installed between the starter battery and the house battery. For the RV system, The generator ensures stable power supply to the starter battery, and uses the extra power of the starter battery to supply power to the house battery.
2. How to choose a suitable battery charger?
1. Make sure that the entire system is a 12V system
2. 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
3. How to set the charging voltage value of the charger?
The DC-DC battery charger adopts the design of the DIP switch and it provides 6 charging voltage settings through five gears. These six charging voltages meet the requirements of lithium batteries and lead-acid batteries in order to provide more charging options. SW5 switch is the selection switch for switching between lead-acid batteries and lithium batteries.
4. 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 can well prevent 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 indicator light of the charger.
(
Notes
: The DC-DC will not power on or operate until the D+ ignition cable is connected. )
5. 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, it suits both D+ and LC terminals. 18-16AWG copper cable recommended.
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Feedback
excellent quality battery at a great price, super fast delivery recommended
Renogy 12V 100Ah LiFePO4 Lithium Iron Battery W/ Built-in Bluetooth IP65 BMS (#
203596124852
)
I installed this on my system that uses a renogy DC50S DC-DC MPPT solar controller. This replaced an old AGM. I hooked this up. My app found it on bluetooth, and that was it! I immediately ordered a second battery. Update! 200 ah of juice and 200 watts of solar all seamlessly installed and balanced.
Renogy 12V 100Ah LiFePO4 Lithium Iron Battery W/ Built-in Bluetooth IP65 BMS (#
203596124852
)
On Jun 19, 2022 at 05:50:15 PDT, seller added the following information: