Recommended Wire Gauge for Redarc 331-BCDC1250D In-Vehicle BCDC Battery Charger
Question:
Should I endeavor to go larger if the BCDC is within 6 feet of the battery bank? According to calculation charts online, the only way I can stay within an acceptable voltage +/-1.5 from the front battery/alternator to the rear of the vehicle where the BCDC is located is to run 1/0AWG for no more than 15 feet. At this point, what is the most effective way to join the 1/0 cable with the BCDC cable looks to be 10AWG? without introducing more voltage ? And should I run 1/0 from the other BCDC cables green/brown/yellow to the batteries/solar panel - no matter how far away they are - to again avoid more voltage ?
asked by: Sam J
Helpful Expert Reply:
It's recommended you place the charger as close to the battery being charged as is possible.
According to my contact at Redarc, if the wire length will be 3-16 feet, 6 gauge cable is recommended. If that distance is greater than that, say between 16 and 30 feet, 4 gauge cable is recommended. Per Redarc, if you stay within those guidelines, the voltage drop wouldn't be an issue.
I've linked to a product demonstration video featuring the Redarc # 331-BCDC1250D charger.
Product Page this Question was Asked From
Redarc In-Vehicle BCDC Battery Charger - Dual Input - DC to DC - 12V/24V - 50 Amp
- Battery Charger
- Battery Charger
- RV/Camper
- Trailer
- 200 Ah
- Charges/Maintains
- 12V
- Solar Panels to Auxiliary Battery
- Vehicle Battery to Auxiliary Battery
- Redarc
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Search Results: shunt
- Search Results: redarc
- Search Results: battery charger
- Shop: Xtreme Off-Road Swing-Up Trailer Jack w/ Dual Wheels - Sidewind - 10" Lift - 1,650 lbs - Black
- Shop: Go Power Solar Flex Eclipse Charging System w/ MPPT Solar Controller and 190 Watt Solar Panel
- Shop: Go Power Overlander Expansion Kit - 200 Watt Solar Panel
- Shop: Go Power RV Battery Monitor Kit with 25' Cable
- Shop: BOLT brand vehicle and hitch locks
- Shop: Floor Mats
- Search Results: bus bar
- Search Results: battery
- Search Results: windshield
- Search Results: battery monitor
- Shop: 60-Amp MIDI Fuse Kit for Redarc In-Vehicle 40-Amp BCDC Battery Charger
- Shop: H-Channel for Enclosed Trailer - 93-1/2" Long x 2" Tall x 1-1/8" Deep - Aluminum
- Shop: Go Power Solar Cable Entry Plate for MC4 Cables
- Video: Redarc 60-Amp MIDI Fuse Kit Review
- Video: Review of Quick Fist Tie Down Straps - QF40050
- Q&A: What Gauge Wire Works With The Redarc In-Vehicle 40-Amp BCDC Battery Charger
- Q&A: Charging Lithium House Battery with DC to DC Battery Charger
- Q&A: Recommended DC To DC Battery Charger For 400AH Lithium Battery Bank
- Q&A: Recommended In-Vehicle Battery Charger for House Battery on Ford Transit
- Q&A: Does 60-Amp Relay Kit for Redarc In-Vehicle BCDC Battery Charger Need Connecting to Ignition Source
- Shop: Trailer Wiring
- Q&A: Is the Redarc 60 Amp Mini Fuse Weather Resistant
- Video: Review of Redarc Battery Charger Parts - Battery to Fuse Holder Cable - RED66FR
- Shop: Roof Rack
- Article: How to Charge a Dump Trailer Battery
- Video: RVS Rear View Safety Backup Camera System Review
- Article: How to Charge a Trailer Battery While Driving: 3 Common Problems (And How to Fix Them)
on Battery Charger
Mark
11/12/2021
Currently have a redarc DC charger charging a second battery in the front of 4wd I have 6 g wire running to the rear of the car 3 MTRS from the second battery. The second battery runs a fridge. I have a camper with 2 batteries and a redarc DC charger. I want to connect the trailer DC DC charger to the wires at the rear of the vehicle which are from the secondary battery. Is this ok or do I need to run a new set of wires from the starter batter to the rear and then subsequently to the trailer DC charger. PS Al fused with 30amp