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RV DC Electrical System: Expert Guide to 12 Volt Systems
Electrical Medium 30 min read 131 👍

RV DC Electrical System: Expert Guide to 12 Volt Systems

Opened my RV this morning to find the 12V system going haywire — lights dimming randomly, fans slowing down, and the inverter shutting off despite full batteries.

Specifically, I need to understand the fundamentals of RV batteries - different types, proper sizing, charging requirements, and maintenance. I'm also confused about DC wiring best practices, what gauge wire to use for different applications, how to properly route and protect circuits, and where fuses and breakers should go. Voltage monitoring is another area where I'm lost - I see all these battery monitors and don't know what I actually need or how to interpret the readings.

I'm also planning some system upgrades down the road like adding solar or upgrading to lithium batteries, so I'd love to understand how all these components work together and what I need to consider for future modifications. Is there a comprehensive resource that covers all aspects of RV DC electrical systems from batteries and wiring through monitoring and upgrades? …more
How to Remove Firefly RV Control Panel: Complete DIY Guide (2024)
General Hard 45-60 min 131 👍

How to Remove Firefly RV Control Panel: Complete DIY Guide (2024)

Our 2019 Fleetwood Discovery LXE has a malfunctioning Firefly multiplex control panel that needs to be completely removed. I've been putting this off for months because I keep hearing horror stories about people cracking their panels or damaging the surrounding woodwork during removal.

I need to access the back of the unit for some electrical work, but I'm honestly terrified of breaking something expensive. The panel seems to be mounted flush with no obvious screws or clips visible from the front. I've searched everywhere but can't find a complete walkthrough that covers the preparation, actual removal process, and how to get everything back together properly.

Can someone please provide a detailed DIY guide that covers all the steps? I'm willing to take my time and do this right - I just need to know the proper technique so I don't end up with a broken control panel or damaged wall. …more
RV 3-Way to 12V Compressor Fridge Replacement: Cut Power Use 80%
Ac Refrigeration Medium 4-6 hours 107 👍

RV 3-Way to 12V Compressor Fridge Replacement: Cut Power Use 80%

Three weeks into owning this RV and the previous owner left me with a power-hungry Norcold 3-way absorption fridge that's absolutely demolishing my 600AH battery bank daily.

I keep hearing people rave about switching to 12V compressor fridges like the Dometic DMC4101, claiming they'll solve all my power woes. But here's the thing - everyone says "it uses way less power" but nobody gives me actual numbers! I need the cold hard facts: exactly how much power will I save making this switch? Will it really make that big of a difference, or am I just trading one expensive problem for another?

Please tell me someone has real-world experience with the power consumption difference between these fridge types! …more
MagnaSine MS2012 Inverter Replacement Guide - Best Upgrade Options 202
Solar Batteries Hard 4-6 hours 106 👍

MagnaSine MS2012 Inverter Replacement Guide - Best Upgrade Options 202

About my 2007 Fleetwood Bounder: the MagnaSine MS2012 manual claims it should handle my loads perfectly, but this inverter keeps failing on me anyway. It's been acting up for months now - the microwave keeps causing it to hiccup and shut off, then it comes right back on. I know it's only going to get worse from here.

I've been looking at upgrading to something more reliable, maybe a Victron or another brand, but I'm honestly overwhelmed by all the options out there. What are the best replacement inverters that other RVers have had success with? I just want something that's going to work consistently without all these random shutdowns.

Before I spend a bunch of money though, could this actually be a battery issue instead of the inverter itself? I'd hate to replace a perfectly good unit if the real problem is somewhere else in the system. …more
RV Solar Panel Z Bracket Installation: Drill vs Adhesive Mounting Guide
Solar Batteries Medium 2-3 hours 100 👍

RV Solar Panel Z Bracket Installation: Drill vs Adhesive Mounting Guide

Ready to mount solar panels on the roof but torn between drilling through the fiberglass with Z-brackets or using VHB tape adhesive mounts. Terrified of roof leaks from drill holes but also worried the adhesive won't hold at highway speeds. Which mounting method actually holds up long term? …more
RV Battery Disconnect Switch Guide: When to Use, What Loses Power & Staying Safe
Electrical Easy 10 min read 99 👍

RV Battery Disconnect Switch Guide: When to Use, What Loses Power & Staying Safe

Wondering if I can skip the $400 shop diagnosis for my electrical issues and just figure out this battery disconnect switch myself, even though I'm getting conflicting advice.

Specifically, I'm concerned about what happens to things like my LP gas detector, carbon monoxide alarm, and refrigerator when I disconnect the battery. Will I lose all my radio presets and clock settings? Are there certain situations where I absolutely shouldn't use the disconnect switch?

I want to use it for storage to prevent battery drain, but I'm also wondering about daily use scenarios. What are the best practices to avoid any problems or safety issues? I really don't want to mess anything up or put my family at risk. …more

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Complete RV Solar System Guide 2024: Sizing, Installation & Wiring
Solar Batteries Medium 4-8 hours 98 👍

Complete RV Solar System Guide 2024: Sizing, Installation & Wiring

Turned to YouTube for RV solar advice and now I'm more confused than ever - probably a dumb question, but how do I actually size this thing? Could fellow RV owners share details about their current solar setups?

Please provide insights on:
- Total system watts
- Fixed or portable panels
- Rigid or flexible panel types
- Series or parallel wiring configuration
- Total system amps
- System voltage
- Wire gauge used
- Controller type
- Personal pros and cons of your current setup
- What you might change in a future installation

These details will help establish baseline specifications for a fleet installation project. …more
RV Solar Panels Not Charging Battery: Low Amp Troubleshooting Guide
Solar Batteries Medium 45 minutes 98 👍

RV Solar Panels Not Charging Battery: Low Amp Troubleshooting Guide

Installed 400 watts of solar panels on the roof last month but my battery monitor barely shows 2 amps coming in even at peak sun. Wiring looks solid, connections are tight, and the panels tested fine individually. Something between the panels and the battery bank is killing my charge rate. …more
RV Chassis Battery Draining & Dead Outlets - Troubleshooting
Electrical Medium 2-4 hours 94 👍

RV Chassis Battery Draining & Dead Outlets - Troubleshooting

Finally followed the manual's advice to check the converter first when my outlets died, but my RV chassis battery keeps draining even though the converter tests perfectly. here and I'm at my wit's end with my 2018 Winnebago Vista. The chassis battery keeps going completely dead every few days, even when we're plugged into shore power at the campground. I've already replaced the battery twice thinking it was just old, checked all the obvious stuff like dome lights and radio, and even had the alternator tested - everything checks out fine.

What's really driving me crazy is that this just started happening about a month ago out of nowhere. We've been full-timing for three years without any major electrical issues. I'm wondering if there's some parasitic draw I'm missing or if the battery isolator could be acting up? Has anyone else dealt with this nightmare? I'm getting tired of jump-starting this thing every other day and my wife is about ready to sell the rig and get a travel trailer instead! …more
Winnebago Ekko Solar Battery Setup: Complete Boondocking Power Guide 2
Solar Batteries Easy N/A - planning 92 👍

Winnebago Ekko Solar Battery Setup: Complete Boondocking Power Guide 2

Looked at our 2022 Winnebago Ekko's dual 320 Amp Hour Lithionics batteries and 450-watt solar setup after my wife mentioned it wasn't optimized for boondocking, and now I'm completely obsessing over our power management. Planning extended boondocking trips to music festivals and remote locations.

I'm particularly interested in understanding how feasible it is to run the roof AC while driving using solar panels and batteries, and ensuring enough power remains when I arrive at my destination. What's the best strategy for maximizing battery life and solar charging efficiency during extended off-grid stays? …more
RV Alternator to Lithium Battery Charging: Complete DC-DC Wiring Guide for Safe Installation
Electrical Hard 4-6 hours 89 👍

RV Alternator to Lithium Battery Charging: Complete DC-DC Wiring Guide for Safe Installation

Last week I picked up my 2007 Holiday Rambler and discovered the previous owner left the alternator-to-battery charging system a dangerous wiring disaster that could destroy my new lithium batteries.

I'm upgrading from four 6V lead-acid house batteries to lithium, and I keep reading conflicting advice about alternator charging. Some people say "just connect it directly," others are warning about alternator damage and proper current limiting. I'm planning to add a DC-to-DC charger eventually, but I'm confused about whether I can safely use the alternator to charge lithium batteries in the meantime.

What's the right way to handle alternator charging with lithium batteries? Should I disconnect the alternator feed completely until I get a proper charging system, or is there a safe way to make this work without turning my alternator into an expensive paperweight? …more
Georgetown GT7 Lithium Battery Conversion: Complete RV Installation Guide
Solar Batteries Medium 4-6 hours 87 👍

Georgetown GT7 Lithium Battery Conversion: Complete RV Installation Guide

Turned the keys on my 2023 Georgetown GT7 and discovered the previous owner left the electrical system in complete shambles, now facing this intimidating lithium conversion nightmare. I know I need LiFePO4 batteries, but every forum post I read mentions different components and I'm getting conflicting information.

I really want to make this upgrade work - the lead acid batteries are killing me with their weight and charging limitations. What specific components do I need beyond the actual lithium batteries? I'm especially confused about whether my converter will work and if I need additional charging equipment for the alternator. Please tell me my 2023 model year gives me some advantage here! …more
LiFePO4 Battery Not Charging in RV: Complete Diagnosis Guide 2024
Solar Batteries Medium 2-3 hours 86 👍

LiFePO4 Battery Not Charging in RV: Complete Diagnosis Guide 2024

Planning my next boondocking trip when this faint electrical burning smell started coming from my battery compartment, and my 950W flat mounted plus 1200W ground solar setup isn't charging my LiFePO4 batteries at all. My LiFePO4 batteries used to charge up beautifully, hitting 100% by late afternoon like clockwork.

Now? Total drama queens. This morning we woke up at 18% charge, and after a full day of glorious sunshine, we're sitting pretty at a whopping 63%. With 2150W of solar, I should be swimming in electrons! But instead my batteries are acting like teenagers - moody and refusing to cooperate.

I'm starting to suspect something's gone wrong, but honestly, I have no clue how to properly check LiFePO4 batteries. Are they actually broken, or am I just doing something monumentally stupid? What voltage readings should I be looking for, and what else should I check before I start panic-buying new batteries? …more

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Xantrex RV3012GS Inverter Repair: Expert Solutions & Alternatives
Solar Batteries Medium 2-4 hours 82 👍

Xantrex RV3012GS Inverter Repair: Expert Solutions & Alternatives

Xantrex RV3012GS inverter is throwing a fault code and the repair shop wants $2,800 to fix it. Inverter is 8 years old and I'm debating between repair, buying a refurbished unit, or upgrading to something newer. What are my realistic options here? …more
12V RV Refrigerator Power and Battery Charging While Towing: Complete
Ac Refrigeration Easy 30 minutes to check 80 👍

12V RV Refrigerator Power and Battery Charging While Towing: Complete

Woke up this morning realizing our new fifth wheel has a 12V refrigerator instead of propane, and we're picking it up next week for our big family camping trip. Over the years with my other RVs, I've always been confident that the house batteries would charge while driving since they're connected to the tow vehicle's charging system through the umbilical cord.

However, I keep reading concerning posts online about 12V refrigerators not staying cold during travel days because they supposedly drain the house batteries faster than the tow vehicle can charge them. This has me puzzled because I've never had charging issues while towing before. If the 12V fridge is running off the same house battery system that gets charged by my truck while driving, shouldn't the charging system be able to keep up with the fridge's power demands?

I'm trying to understand the actual power requirements of these 12V fridges and whether my tow vehicle's charging system through the 7-way connector will realistically be able to maintain the batteries and keep the fridge running properly during long travel days. What kind of amperage draw should I expect from a typical RV 12V refrigerator, and how can I verify that my charging system is working adequately while towing? …more
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