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Rich Solar

RICH SOLAR 12V 40A DC-DC Battery Charger for RVs, Vans, Boats & Off-Grid Systems | Lithium & Lead-Acid

SKU RS-DC40
$127.99
$127.99

Estimated Delivery: 4-7 Business Days from Order Date

Free Standard Shipping on All Orders to the Contiguous USA

30 Day Return Policy with 25% restocking fee applies to change-of-mind returns. See full policy

Estimated shipping time

You can typically expect your items to arrive within 4–7 business days, depending on your location and product availability.

What is your Return Policy?

At Wildhaven Curator, we want every customer to shop with confidence. If something doesn’t go as planned, we’ve made returns and refunds simple and fair. Here’s how it works:

1. Return Window

You can request a return within 30 days of receiving your order. Unfortunately, we’re unable to accept returns after that time frame.

2. Who Pays for Return Shipping?

  • If your item arrives damaged, defective, or incorrect, we’ll cover the return shipping cost.
  • If you’re returning an item because you changed your mind, you’ll be responsible for return shipping fees.

3. Damaged or Defective Items

Received something broken or not working properly? Contact us within 30 days. We’ll provide a prepaid return label and once the item is returned and inspected, we’ll issue either a full refund or a replacement—including any original shipping costs.

4. Changed Your Mind?

If you no longer want the item, you can return it within 30 days—as long as it's unused, in its original packaging, and in resellable condition. You’ll need to handle the return shipping, and once we receive and inspect it, we’ll refund the product cost (excluding shipping).

5. Refund Processing

Once we receive and approve your return, we’ll send a confirmation email and issue a refund to your original payment method within 7 business days. Please allow additional time for banks or credit card companies to process and reflect the refund.

If it’s been over 10 business days since your refund was approved and you still don’t see it, contact us at support@wildhavencurator.com and we’ll look into it immediately.

6. Restocking Fees

In some cases, a restocking fee may apply depending on the item and return reason. If applicable, we’ll clearly communicate this during your return request process.

Rich Solar

RICH SOLAR 12V 40A DC-DC Battery Charger for RVs, Vans, Boats & Off-Grid Systems | Lithium & Lead-Acid

SKU RS-DC40
$127.99
RICH SOLAR 12V 40A DC-DC Battery Charger for RVs, Vans, Boats & Off-Grid Systems | Lithium & Lead-Acid

Product Description

The RICH SOLAR 12V 40A DC-DC Battery Charger is designed for RVs, vans, boats, and off-grid systems. It combines an isolator and charger in one unit and supports AGM, Flooded, Gel, and Lithium batteries for flexible system compatibility.

This 40A charger works with both smart and traditional alternators and provides charging modes for lithium and lead-acid batteries. Built-in circuit protection, battery isolation, engine-safe charging, and low-current mode help support safe and reliable battery operation in mobile and off-grid setups.

Key Features

12V 20A/40A/60A DC-DC Battery Charger

  • Combines isolator and charger
  • Compatible with alternators
  • Supports AGM, Flooded, Gel, and Lithium batteries
  • Suitable for RV, Marine, Van, and Off-grid applications

Power Your System Without Limits

  • Multi-Battery Ready: Works with 12V AGM, Flooded, Gel, and Lithium batteries. Simply use the Mode Selection Switch to choose the correct battery type for flexible and safe upgrades.
  • Alternator Friendly: Supports both smart and traditional alternators through the 12V starter battery connection.
  • Built for Any Setup: Ideal for RVs, vans, boats, and off-grid systems, minimizing compatibility issues and installation effort.

Charge Smarter, Last Longer

  • Adaptive Charging for Lithium: Adaptive Charging for Lithium - 2-stage charging safely reactivates over-discharged lithium batteries and charges them to 100%.
  • Optimized Lead-Acid Charging: 3-stage charging maximizes battery life and charges to 100%.

Keep Your System Safe

  • Smart Circuit Protection: Guards against over-voltage, over-temperature, and reverse polarity to keep your system safe.
  • Battery Isolation: Prevents reverse current between batteries, protecting both the starter and auxiliary batteries.
  • Peace of Mind: Ensures safe, worry-free operation in RVs, vans, boats, and off-grid systems.

Safe, Reliable Battery Operation

  • Engine-Safe Charging: D+ ignition terminal charges only when the engine is running, safeguarding the starter battery.
  • Low-Current Mode: LC terminal supports small alternators or weak power sources, preventing system overload.
  • Temperature-Adaptive Charging: RJ11 sensor port adjusts voltage for cold or hot environments to extend battery life (not for lithium batteries). *D+, LC cables, and a temperature sensor are not included.

Versatile Charging for All Setups

  • RV
  • Van
  • Marine & Boats
  • Off-Grid Cabins

Specification

Model RS-DC20 RS-DC40 RS-DC60
Product Name 20A Battery Charger 40A Battery Charger 60A Battery Charger
Input Nominal Voltage 12VDC 12VDC 12VDC
Operating Voltage Range 10–16VDC 10–16VDC 10–16VDC
Output Nominal Power 250w 500w 750w
Output Nominal Current 20A 40A 60A
Operating Current Range 18-22A 37-43A 55-65A
Weight 4.0 lb 4.9 lb 6.2 lb
Dimensions 8.4 * 7.4 * 3.1 in 10.3 * 7.4 * 3.1 in 12.3 * 7.4 * 3.1 in
Efficiency >85%, @14VDC, 30% load >85%, @14VDC, 30% load >85%, @14VDC, 30% load
Battery Charging Mode 2-stage for lithium; 3-stage for lead-acid 2-stage for lithium; 3-stage for lead-acid 2-stage for lithium; 3-stage for lead-acid

Downloads

Specifications

Manual

Warranty

This product is covered by the official RICH SOLAR manufacturer limited warranty. Warranty terms, coverage period, and claim requirements are provided by RICH SOLAR.

View RICH SOLAR Warranty Details

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Why Choose RICH SOLAR

RICH SOLAR has been a leader in the off-grid solar industry since 2005, with a focus on bringing the world's best solar products to market while providing world-class customer service.

Free Shipping
U.S. Local Warehouse
Lifetime Service
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