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BLUETTI D40 DC-DC Battery Charger for RV Batteries, 12V/400W Output RV Battery Charger for Charging LiFePO₄, AGM/Gel, Lead-Acid, and Calcium Batteries
✅ In stock
F
Grade
Analysis Confidence
55%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 20, 2026 12:04 AM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- 💰The current price is slightly above the going rate for this product — worth watching for a drop.
- 📉No lower price has surfaced in the past twelve months, making this one of the standout deals in recent memory.
- 📈Prices have been moving higher lately — waiting risks paying more if that momentum continues.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0/22
Market Standing
0/20
Deal Strength
16/20
Momentum
0/10
📝 Product Overview
🏪 Sold by
Bluetti
🚚 Shipping
Free Shipping
Product Details
✓[Function] - Used to charge RV batteries including LiFePO₄, AGM / Gel, Lead-acid, and Calcium batteries via BLUETTI portable power stations, solar panels or starter batteries.
✓[Input Requirements] - Portable power station with 48V output, solar panels with 12-36V OCV and 12V stater batteries.
✓[Pair Recommendations] - BLUETTI AC200L portable power station, PV120 solar panel, PV200 solar panel.
✓[What You Get] - BLUETTI D40 400W DC-DC battery charger, DC input cable for power station, Anderson connector accessory, mounting screws, Anderson connector and user manual.
⚙️ Specifications
Connector Type
Anderson connector
Brand
BLUETTI
Color
Black
Battery Cell Composition
Lead Acid
Recommended Uses For Product
Camping, Residential
Power Source
Solar Powered
Number of Ports
1
Compatible Devices
LiFePO₄, AGM, Gel, Lead-acid, Calcium batteries, BLUETTI portable power stations, solar panels, starter batteries
Output Wattage
400 watts
Antenna Location
Camping, Residential
Battery Cell Type
Lead Acid