Results for "inverter charger"

Electrical Medium 2-4 hours 744 👍 0

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

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Solar Batteries Medium 4-6 hours 561 👍 0

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

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Solar Batteries Medium 4-6 hours for inverter replacement 414 👍 1

RV Inverter Guide: Modified vs Pure Sine Wave - Safe Power

My multimeter's out and I'm ready to tackle this RV electrical mess myself — pretty sure the inverter's the culprit but need to know where to start. I have a 2000 Winnebago Ultimate Advantage with four deep cycle house batteries and recently installed a Xantrex 758 inverter to replace my old Freedom 15 unit. The first time I tried using the inverter power while unplugged from shore power, something very strange happened - a hair dryer in the bathroom started running by itself and wouldn't shut off when I tried the switch. I had to unplug it, and the handle was warm. The hair dryer appears to be ruined now.

When I bought the Xantrex 758, I paid around $725 for what I thought was a good unit, but I'm now learning there's a difference between modified sine wave and pure sine wave inverters. I wasn't aware of this distinction when I made the purchase, and it turns out the 758 is a modified sine wave unit. I've since heard that modern electronics, especially things like residential refrigerators, computers, and sensitive electronic components, can be damaged by modified sine wave power.

I'm really concerned about potentially damaging my new residential refrigerator, stereo system, and computer equipment. Should I be worried about using this modified sine wave inverter with modern RV electronics? Is the hair dryer incident a sign that I need to upgrade to a pure sine wave unit, or are there other factors that could have caused this problem? I'm trying to understand if my current setup is putting my expensive electronics at risk. …more

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4.3 (9,200 reviews)

Solar Batteries Medium 2-4 hours 298 👍 0

RC7-GS Inverter AGM Battery Settings: Complete Setup Guide

Replaced my 105Ah AGM battery and now my RC7-GS inverter charger is completely rejecting it like this capacity doesn't exist in its programming.

The charging settings only go from 125Ah up to 1000Ah, with an 'auto' option that supposedly 'learns' my battery but resets every time the low voltage cutoff trips (which feels like cheating, honestly). I'm worried about undercharging or cooking my expensive new AGMs if I pick the wrong setting.

Oh, and while we're talking about things that don't work as advertised - the generator auto-start feature might as well be a myth. Can't even manually start the generator from the RC7 panel. At this point I'm wondering if I should have just stuck with my old setup that actually worked! Anyone know what I'm doing wrong here? …more

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Electrical Medium 2-4 hours 257 👍 0

Protect Your RV Alternator When Charging Lithium

Tried everything my neighbor did to charge his LiFePO4 batteries but mine keeps frying the alternator while his works flawlessly — what's different? I want to install a temperature sensing device that can interrupt charging by opening the solenoid between chassis and house charging systems if the alternator gets too hot. I'm looking to spec out components and understand the installation process, and I'm open to hearing why this might not be a good approach. My goal is preventing alternator overheating when these lithium batteries draw high current compared to my old flooded or AGM batteries. I'm looking for technical feedback and am totally open to critique. …more

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Electrical Medium 30-90 min 243 👍 0

No 12 Volt Power in RV: Complete Troubleshooting Guide

Turned the key and nothing works on 12 volt — no lights, no water pump, no slides. Batteries show 12.6 volts on the multimeter so they're fully charged. House batteries seem fine but zero power is getting to any of the 12V circuits inside the coach. …more

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Electrical Medium 30 min read 233 👍 0

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

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Solar Batteries Medium 1-2 hours 219 👍 0

Xantrex Freedom X 1200 Inverter Low Battery Warning: Critical 11.2V Fix Guide

Walked into my new RV and discovered the previous owner left the Xantrex Freedom X 1200 inverter constantly throwing critical 11.2V low battery warnings. My Xantrex Freedom X 1200 inverter is displaying warning indicators on the panel, and I'm seeing some concerning voltage readings that have me worried about potential damage to my electrical system.

Here's the complete situation: My house battery is reading 11.2 volts, while the chassis battery shows 13.1 volts. The inverter panel is lit up with what I assume are low voltage warnings. I've been noticing the interior lights dimming significantly, especially when trying to run any appliances through the inverter. To make matters worse, it's currently overcast and getting dark, so my solar panels aren't generating any meaningful charge to help recover the battery.

I'm particularly concerned because I know lead-acid batteries can be permanently damaged if they're discharged too deeply. The voltage reading of 11.2V seems critically low to me, but I want to understand exactly how urgent this situation is and what my immediate next steps should be. Should I be looking at shore power connection, generator use, or is there something wrong with my charging system that caused this in the first place? I need to know both the immediate fix and what might have caused this failure. …more

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Solar Batteries Hard 4-6 hours 191 👍 0

MagnaSine MS2012 Inverter Replacement & Upgrades

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

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Solar Batteries Medium 4-8 hours 165 👍 0

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

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Electrical Hard 4-6 hours 163 👍 0

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

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Solar Batteries Medium 2-3 hours 159 👍 0

How to Install a Lithium Battery Manager Relay in Your RV - Complete Guide

Got my weekend planned to install a lithium battery manager relay in my 1999 Fleetwood American Dream Saturday — what should I have ready beforehand? I understand these relays are crucial for protecting lithium batteries from overcharging by managing the connection to the alternator, but I want to make sure I understand the complete installation process before I start.

I'm looking for detailed information on how these battery manager relays function - specifically how they disconnect the batteries from the alternator when charging isn't needed. More importantly, I need step-by-step guidance on the actual wiring process, including how to properly connect the relay between my alternator/converter and the new lithium battery bank. I'm particularly concerned about getting the fusing right and understanding what control circuits are involved in this setup.

This is a significant electrical modification to my RV's charging system, so I want to ensure I have all the technical details covered before I begin the installation. Any comprehensive guidance on the complete process would be extremely helpful. …more

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Propane Hard 2-4 hours 155 👍 0

How to Wire Girard Tankless Water Heater: Complete DSI Suburban Replacement Guide

Ripping out my old Suburban water heater to install a Girard tankless but the wiring is completely different — DSI ignition board, different voltage requirements, and the old thermostat wiring doesn't match up. Need a clear wiring diagram for this swap. …more

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Electrical Medium 30 minutes to 2 hours 153 👍 0

RV Red Fault Light No Power: How to Fix Partial Electrical Outage

Tried rewiring my RV's electrical system yesterday but something still doesn't seem right — red fault light is on and half my outlets have no power. My Class A has this red fault light glaring at me from the power panel, but it's not a total blackout situation. AC is running fine (thank goodness!), but my fridge, microwave, and some outlets decided to take a vacation.

I already tried the usual suspects - reset every GFCI I could find inside and messed with the main power cord panel outside where shore power comes in. Still got that annoying red light mocking me.

This partial power thing is driving me nuts. What should I be checking next to get everything back online? …more

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Solar Batteries Medium 2-3 hours 153 👍 0

Magnum MS2012 Inverter Not Charging Battery: Complete Fix Guide

Finally got a second opinion after my RV tech insisted I need an $800 replacement for my entire Magnum MS2012 inverter just because it won't charge my 2011 Fleetwood Providence's battery. I've got dual Magnum MS2012 inverter chargers that seem to charge the batteries fine through all the stages, but once they reach float mode, the voltage just keeps dropping and the chargers won't kick back in to maintain them.

I've already replaced all the batteries (both coach and chassis), cleaned and tested every solenoid I can find, and I'm still having the same issue. The coach is plugged into shore power, so that's not the problem. I've been digging through the control panel menus looking for float settings but I'm not finding what I need.

Could this be a settings issue with the Magnum units, or am I dealing with some kind of power drain that's too much for the float charge to handle? I've been chasing this problem for months and I'm really hoping someone has run into this before and can help me figure out what I'm missing! …more

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