Renogy 12V 40A DC to DC On-Board Battery Charger

Renogy 12V 40A DC to DC On-Board Battery Charger for Flooded

Renogy 12V 40A DC to DC On-Board Battery Charger for Flooded, Gel, AGM, and Lithium Batteries, Using Multi-stage Charging in RVs, Commercial Vehicles, Boats, Yachts

  • 【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】 Offers Over-voltage Protection, Over-temperature Protection, and Reverse Polarity Protection to ensure operation safety. It also isolates the input and output to prevent voltage transmission errors and interfere with house battery charging.
  • 【Protect Your Starter Battery】The DC-DC battery charger is capable of identifying whether the generator is started, to prevent over-discharge of the starting battery and protect the generator.
  • 【Reliable Quality】The compact and robust design makes it suitable for all conditions. CE certification.
SKU: B08QYL35P1
Dimensions: 17.5 x 26.11 x 6.81 cm; 1.42 Kilograms
Model: RNG-DCC1212-40
Manufacture: Renogy
Origin: China

Product Description

11DC to DC Battery Charger Renogy 40A Battery Charger Lithium Using Multi-Stage Charging for RV1311

Q&A

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 a stable power supply to the starter battery and uses the extra power of the starter battery to supply power to the house battery.

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.

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.

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. The DC-DC 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, it suits both D+ and LC terminals. 18-16AWG copper cable recommended.

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