How does "green priority really work? if i'm driving and can pull 50a from truck alternator or 10a from solar what is my actual charge current?

The solar has priority, so 10 from solar and the remainder from your alternator.

Can a 50a redarc dc-dc charger be paralleled with a 25a charger to get a 75a charge rate?

Hi John, Thanks for your question. Ideally we like to match the chargers together when parallel connecting - eg 2x 50A, 2x 40A or 2x 25A etc. Our best thought would be 2x BCDC1240D units to keep it balanced, but in theory the 25A and 50A should still work ok. There may just be inefficiencies in charging output due to the mismatch is all. We hope that's helpful! Best regards, REDARC

Compatible with ford e 350 van 6.8 ltr v-10 ? van is 2008.

In general, yes, this is compatible with your Ford V-10. This DC-DC charger has so many features that you need to be more specific about what you are interested in. I have used several Redarc products in my van and RV builds and have never been disappointed. They get a premium price, but it is worth every penny.

The product literature mentions "Auxiliary battery," but not starting battery. Is this not suitable as an isolator between battery different banks ?

Hi there, Thanks for your question. Indeed the BCDC will be able to isolate between the Start and Aux batteries when the vehicle is turned off and the Vehicle input voltage to the unit is below 12.7V. The unit isn't able to 'charge back' to the Start battery or anything when using Solar, no. We hope that's helpful! Best regards, REDARC

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REDARC Dual Input 50A in-Vehicle DC to DC Battery Charger with MPPT Solar Regulator, Green Power Priority, 12V/24V Compatible, for Lithium, AGM, Gel, Lead Acid, Calcium, LiFePO4 Batteries

Product ID: 170175166

Details

Brand
REDARC
Color
Green
Item Weight
1.5 pounds
Output Voltage
12 volts
Product Dimensions
5"D x 13"W x

⚡50A dual input power

☀️MPPT solar optimization

🛡️rugged all-terrain durability

€ 1284.50

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Description

🔋 Power your adventure, anywhere, anytime.

BUILT FOR THE WILD - Engineered to endure dust, water, heat, and vibration—your ultimate off-road companion.
DUAL INPUT POWERHOUSE - Simultaneously charges from alternator and solar for unstoppable energy flow.
SOLAR SMART WITH MPPT - Maximize green energy with intelligent solar priority and efficiency.
TRUSTED AUSSIE RELIABILITY - 45+ years of rugged innovation backed by a 2-year warranty and global support.
UNIVERSAL BATTERY COMPATIBILITY - Seamlessly supports Lithium, AGM, Gel, Lead Acid, Calcium & LiFePO4 batteries.

The REDARC Dual Input 50A DC to DC Battery Charger combines vehicle alternator and solar inputs with MPPT technology to efficiently charge a wide range of 12V/24V batteries. Designed for extreme conditions, it delivers reliable, multi-stage charging for battery banks 200AH and up, making it ideal for overlanding, RVing, and off-grid lifestyles. Backed by decades of Australian engineering and a 2-year warranty, it ensures dependable power wherever your journey takes you.

Specifications

ASIN	B07MT9T1Q5
Amperage	50 A
Best Sellers Rank	#267,902 in Automotive ( See Top 100 in Automotive ) #879 in Battery Chargers
Brand	REDARC
Color	Green
Current Rating	50 A
Customer Reviews	4.8 4.8 out of 5 stars (35)
Global Trade Identification Number	09338628004690
Input Voltage	12 volts
Item Dimensions D x W x H	5"D x 13"W x 3"H
Item Weight	1.5 pounds
Manufacturer	REDARC
Mfr Part Number	BCDC1250D
Model Number	BCDC1250D
Number of Items	1
Number of Ports	3
Output Voltage	12 volts
Specification Met	Multiple

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€ 1284.50

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Greece.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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