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RICH SOLAR

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

SKU RS-DC40

Regular price: $189.99

Regular price: $189.99

Quantity

Estimated Shipping

Free Standard Shipping on all orders within the United States.

Processing Time: Orders are processed in 1–2 business days. Orders placed before 2:00 PM EST begin processing the same day.
Transit Time: Standard items arrive in 3–7 business days. Larger freight items may arrive in 10–21 business days.
Freight Delivery: The carrier will contact you via phone to schedule a delivery window.
Inspection is required upon arrival; please note any damage on the receipt before signing so we can expedite a replacement..

See Shipping Policy for more info.

Return Policy

Returns & Support
We offer a 7-day return window for all unused and unopened gear. Returns are subject to a 15%–25% restocking fee, and return shipping is the responsibility of the customer.

See Return & Refund Policy for more info.

Product Description

Features

Smart Charging by Battery Type

Lithium Charging: 2-stage adaptive charging for safe and complete lithium battery charging.
Lead-Acid Charging: 3-stage charging extends battery life.
Lithium Activation: Reactivates over-discharged lithium batteries.
Multi-Battery Ready: Supports AGM, Flooded, Gel, and LiFePO₄ (LFP) via Mode Switch.

Alternator Compatibility

Alternator Friendly: Works with smart and traditional alternators (12V systems)
Low-Current Mode (LC): Limits output to 20A for small alternators or weak sources.

Intelligent Safety & Charging Control

D+ Ignition Control: Charges only when the engine is running.
Battery Isolation: Prevents reverse current between batteries.
Smart Circuit Protection: Guards against over-voltage, over-temperature, and reverse polarity.
Certifications: CE & RoHS compliant for quality and safety assurance.

* D+ cable, LC control cable, and temperature sensor not included.

Specifications

Output Nominal Power: 500W
Rated Charge Current: 40A
Low Current Mode: 20A
Idle Power Consumption: ＜0.6A
System Voltage: 12VDC
Input Voltage Range: 10-16VDC
Input Current Limit: ≤68A
Float Voltage: 13.5–13.8V
Boost Voltage: 14.4–14.8V
Battery Charging Mode: 2-stage for lithium; 3-stage for lead-acid
Compatible Battery Types: AGM, Flooded, Gel, Sealed, LiFePO₄ (LFP), Lithium-ion
Efficiency: >85% (@ 14VDC, 30% Load)
Operating Temperature: -4 °F to 122 °F
Dimensions: 10.3 × 7.4 × 3.1 in
Weight: 4.9 lb
Certifications: CE, RoHS