Does this have Bluetooth connectivity?

nope. You'd most likely want that functionality from a separate battery monitor anyway, though. As far as I understand, most chargers will only know when to float your battery. They won't know what percentage your battery is at between dead and full, or the calculated time to full discharge based on usage, or a handful of other useful stats/info.

What is the maximum volts for the solar input?

Hi there, Thanks for your message and apologies for the late reply. The maximum open circuit voltage (VOC) that our chargers can accept is 32V. You are needing to use '12V nominal' type solar panels with our BCDC units. Best regards, REDARC

On the lifepo4 set up,the redarc chart does not specify if that set up is for 1 or 2 lifepo4 batteries, does it mean is the same size wire regardless?

Hi there, Thanks for your question. Technically the BCDC can be used on either one, two or three batteries - we normally ensure that the amount of AH the unit is trying to charge isn't too large for it (eg around 200AH maximum). So yes the wire size chart is still applicable no matter how batteries you wire on the output side of the charger, just go by the length of the cable runs instead. We hope that's helpful! Best regards, REDARC

Is this unit water tight? can it be mounted unter the travel trailer?

its water proof but you need to mount it: 1-As close as possible to the battery being charged (auxiliary battery) 2-Away from any direct engine heat. 3-For Caravan or camper, near or in the battery compartment is generally the best position. 4-Mount the BCDC to a metal surface if possible to ensure heat dissipation. So I guess the answer is no

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REDARC Dual Input 40A 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

REDARC Dual Input 40A 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: 280604582

Details

Brand
REDARC
Colour
Black
Item weight
35.3 Ounces
Output voltage
24 Volts
Specification met
SEMA

⚡40A dual input power

☀️MPPT solar efficiency

🛡️IP67 sealed rugged design

219988 kr

Duties & taxes included

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Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔋 Power your off-grid lifestyle with unstoppable, smart energy!

DUAL INPUT POWER BOOST - Simultaneously charges from alternator & solar for unstoppable energy flow
SOLAR OPTIMIZED CHARGING - MPPT tech maximizes solar harvest, prioritizing green power to save your engine
TRUSTED AUSSIE ENGINEERING - 45+ years of rugged reliability backed by a 2-year warranty and global support
BUILT FOR EXTREME ADVENTURES - Waterproof, dustproof, and heat-resistant up to 176°F—ready for any terrain
UNIVERSAL BATTERY COMPATIBILITY - Smart multi-stage charging for Lithium, AGM, Gel, Lead Acid & more

The REDARC Dual Input 40A DC to DC Battery Charger is a rugged, in-vehicle power solution designed for 12V/24V systems. It simultaneously charges your auxiliary battery from both your vehicle alternator and solar panels using advanced MPPT solar regulation and green power priority. Compatible with a wide range of battery types, it features multi-stage charging for optimal battery health and is engineered to withstand extreme environmental conditions. Trusted for over 45 years and backed by a 2-year warranty, this charger is ideal for off-grid adventurers, RV owners, and professionals needing reliable, efficient power on the move.

Specifications

ASIN	B077JR6NH5
Amperage	40 Amps
Brand	REDARC
Brand Name	REDARC
Colour	Black
Current Rating	40 Amps
Customer Reviews	4.6 out of 5 stars 74 Reviews
Global Trade Identification Number	09338628004355
Input Voltage	12 Volts
Input voltage	12 Volts
Item Weight	35.3 Ounces
Item weight	35.3 Ounces
Manufacturer	REDARC Electronics
Manufacturer Part Number	BCDC1240D
Model Number	BCDC1240D
Number of Items	1
Number of Ports	2
Output Voltage	12 Volts (DC)
Output voltage	12 Volts (DC)
Specification Met	SEMA
Specification met	SEMA
Unit Count	1.0 count

Reviews

L**L

Works flawlessly, and fantastic customer support!

This unit is built like a tank! Easy to install, just make sure you follow the instructions to the letter. I initially hooked up the grounds to both of my batteries and this does not work. Must be vehicle or frame grounded. Also do not cheap out on resettable 60 amp breakers. They overheat and trip. I then bought the recommended 60 amp blade fuse breakers from Redarc and the whole setup works amazingly! Full 50 amp charge going to my RV battery bank. Service was also off the charts as I had questions about my initial set up. Absolutely worth the money over the other DC to DC chargers available.

15.10.2021

S**X

Life changer in a good way

Love it. Does what its supposed to do. Holds up to rough roads and vibrations.

22.04.2026

C**�

Very Good product

Great product

24.05.2024

K**R

Pricey, but worth it...

I've installed 20 DC-to-DC converters. This is it. At $475, or whatever, easily $150 more than similar, it is quality. And you can mount it almost anywhere saving valuable protected space. Simple to install, virtually not setup and works as advertised. Smaller than the 50A Kisae and no fan. This is the 40A version but I'm reasonably sure the 50A is equally good.

15.10.2022

D**R

REDARC BCDC1240 performs

Easy install and works great for both the solar and alternator charging. Love the product and would recommend to anyone thinking of buying.

2.02.2021

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