Redarc In-Vehicle BCDC Battery Charger 331-BCDC1225D For Charging Teardrop Trailer Battery
Updated 12/22/2025 | Published 10/14/2024
Question:
I’ve installed your ETBC7 7-pin trailer wiring kit on my 2024 Subaru Outback. I’m towing a small tear trailer with a lithium battery/solar setup, and would like to be able to charge the tears battery from the car battery via the 7-pin. Would the redarc dc to dc charger work Redarc In-Vehicle BCDC Battery Charger -: 331-BCDC1225D?
asked by: Robert B
Expert Reply:
Hello Robert, thanks for reaching out. It sounds like you are on the right track here because the Redarc In-Vehicle BCDC Battery Charger # 331-BCDC1225D is exactly what you will need for keeping your trailer battery charged. As long as your battery bank is rated between 75 and 200 amp hours this charger will work great for you.
Product Page this Question was Asked From
Redarc In-Vehicle BCDC Battery Charger - Dual Input - DC to DC - 12V/24V - 25 Amp
- Battery Charger
- Battery Charger
- RV/Camper
- Trailer
- 12V
- Charges and Maintains
- AGM
- Calcium
- Gel
- Lead Acid
- Lithium
- Solar Panels to Auxiliary Battery
- Vehicle Battery to Auxiliary Battery
- Smart Charge
- Trickle Charge
- Redarc
more information >
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Jesse M.
12/22/2025
Hey Robert, how did things go using the Redarc BCDC charger with your teardrop trailer’s lithium battery? Did it keep the battery topped off while towing with your Outback? Your update could make it easier for the next person setting up a similar system.