The REDARC BCDC1250D Dual Input 50A Vehicle DC Battery Charger from Nomadic Supply Company is a 12V, 50A In-vehicle DC to DC Battery Charger designed to keep your auxiliary battery charged when driving or with portable solar panels when parked. REDARC BCDC1250D Dual Input 50A Vehicle DC Battery Charger uses multi-stage DC-DC charging, a system that allows optimum charging levels for your auxiliary battery. It is solar ready and suitable for many battery types including lithium, AGM, GEL, standard lead acid and calcium.
The REDARC BCDC1250D is a 12V, 50A In-vehicle DC to DC Battery Charger designed to keep your auxiliary battery charged when driving or with portable solar panels when parked. It uses multi-stage DC-DC charging, a system that allows optimum charging levels for your auxiliary battery. It is solar ready and suitable for many battery types including lithium, AGM, GEL, standard lead acid and calcium.
Dual Battery Charger with solar input
The BCDC1250D has been developed to provide a higher current output, it features an additional charging stage known as SoftStart which has been engineered so that it can handle more demanding applications.
Best DIY dc battery charger
For self installation, we recommend also purchasing the REDARC FK60 60amp fuse kit.
Multi-stage charging profile
Featuring a Maximum Power Point Tracking (MPPT) solar regulator, the BCDC1250D will charge from both solar and the alternator simultaneously. And, with built-in Green Power Priority it will select solar charging first, meaning less load on the alternator.
Suitable for 12 or 24-volt vehicle systems, the unit will also work with either standard or variable/smart alternators.
It is compatible with all common types of batteries used in automotive and recreational vehicles such as AGM, Gel, standard lead acid, Calcium and LiFeP04.
As a guide, the BCDC1250D is used for battery bank sizes over 200AH. For smaller batteries of 75-200AH, REDARC recommends the Redarc BCDC1225D.
Built tough for all conditions
REDARC BCDC1250D Dual Input 50A Vehicle DC Battery Charger with solar input has been proven to work in all types of terrains, including deep water crossings, and stands up against extreme heat (up to 176°F). It’s fully sealed against the risk of infiltration from water and dust and will hold up to the adventure at hand. It’s designed to maximize the performance and life of your auxiliary battery and is suited for battery bank sizes of 200AH and above in most applications.
Made in Australia by REDARC this amazing range has undergone years of testing in some of the harshest conditions on the planet. REDARC has been in business for nearly 40 years and all of our products are made tough enough to take anything nature can throw at them.
*Suitable for use on vehicles with conventional alternator charging systems.
What Is Green Power Priority?
Green Power Priority is used to describe the priority given to a solar input when charging an auxiliary battery in your vehicle. For example, if a solar power input is available the maximum available solar power will be used before topping up the output charge current from another power source. Priority is given to the solar input then to AC Mains power (where applicable), then to DC Vehicle Power, the advantage of this is that it places less load on the alternator.
Which of our products use Green Power Priority?
A number of our products use Green Power Priority including In-Vehicle Dual Battery Chargers:
REDARC BCDC1225D Dual Input 25A Vehicle DC Battery Charger
REDARC BCDC1240D 40A Vehicle DC Battery Charger
REDARC BCDC1250D Dual Input 50A Vehicle DC Battery Charger
Best DIY DC battery charger
For self installation, we recommend also purchasing the REDARC FK60 60A Fuse Kit.
REDARC BCDC1250D Dual Input 50A Vehicle DC Battery Charger Documents:
Dual Input 25A In-vehicle DC Battery Charger Product Brochure
How to determine if you have a variable voltage (smart) alternator
How to access an ignition source (for the blue wire) when your BCDC is installed in a trailer.
REDARC BCDC1250D Dual Input 50A Vehicle DC Battery Charger Specifications:
Input Voltage 9 – 32VDC
Output Voltage 12V
Maximum Charging Voltage 15.3V
Output Current Rating (Cont.) 50A
Output Power 750W
Input Fuse Rating 60A
Output Fuse Rating 60A
Length (in) 6.50
Width (in) 4.72
Height (in) 1.46
Weight (lbs) 2.3
Standby Current Draw <8mA
Warranty 2 Years
WARNING: This product may expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to