Which Converter Will Charge Batteries And Power Electronics In DIY Off-Grid Camper Build
Published 02/17/2026
Products Featured in This Question
Question:
I’m doing a cargo trailer build and don’t have a power center. Which of these WFCO converters makes the most sense?
asked by: Ryan
Expert Reply:
Hey there Ryan, since these are standalone deck-mount converters, they’re actually perfect for a cargo trailer build where you’re using a simple DC fuse block instead of a full power center which usually has a built-in converter.
- # WF58FR 45A is great for light-duty builds - LED lights, fan, small fridge.
- # WF38FR 55A works well if you’ve got two batteries or expect moderate loads.
- # WF56FR 100A is more for large lithium banks or heavier off-grid use.
The choice really comes down to your battery size and how fast you want to recharge when plugged into shore power or running a generator. What size battery bank are you planning to run in the build?
Product Page this Question was Asked From
WFCO Auto-Detect RV Converter Charger - Deck Mount - 12V - 45 Amp
- Power Converter
- Converter Only
- Automatic Switch
- 12V
- 45 Amps
- AC to DC
- AGM
- Gel
- Lead Acid
- Lithium
- RV
- Multi-Stage Charge
- WFCO
more information >
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