Results for "BIM"

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

Turned on my 2024 Entegra Reatta XL this morning to find the house batteries completely dead again despite being plugged into 50 amp shore power—third time this season and I'm done guessing. New batteries, good connections, power was working fine for days then died completely. Voltmeter shows 12.69V on chassis, 4.7V on house batteries at the BIM.

What's the proper troubleshooting sequence for house batteries not charging on shore power? Need to check converter, breakers, and connections but want to do this systematically. …more

Staring at my 2019 Newmar's freshly wired lithium upgrade with Victron BVM-712, Orion XS DC-DC charger, and Cerbo GX — finished yesterday but the system still isn't charging properly.

The main issue is I can't figure out how to properly integrate my existing boost switch with the new DC-DC charger setup while maintaining the ability to trickle charge chassis batteries. Currently, my Orion XS DC-DC charger flows only one way from engine alternator to lithium batteries. Should I replace the existing BIM with a LI-BIM, which would be in series with the 2/0 cable? Is there a control wire on the Orion XS that will allow flow from lithium to chassis batteries while on shore/inverter power?

I'm considering adding a 120V battery tender for chassis batteries, but want to confirm what modifications might be needed to my existing BIM. Can someone provide guidance on the correct wiring approach? …more

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

Wondering why the manual shows a reset breaker location on my Freedom 20D inverter that doesn't match what I'm actually seeing inside the unit? My 1999 motorhome has a Freedom 20D inverter that was working fine until recently. I was running some heaters during cold weather and when I started the engine, something went wrong and I lost one of the AC circuits completely.

I've reset all the house breakers and checked every GFCI I could find. All the other circuits work fine, but this one inverter circuit has no power at all. When I look at the inverter itself, none of the breakers appear to have tripped - they all look normal to me.

I'm wondering if there might be some kind of internal breaker or component that failed inside the inverter that I can't see? Is this something that can be repaired, or am I looking at replacing the whole unit? Any help would be greatly appreciated since I'm not sure what to check next! …more

Already flipped every switch and tried starting my 2005 Monaco Cayman after complete electrical power loss yesterday and absolutely nothing responds. Just getting back into camping season after winter storage, and while merging onto the interstate last week, my entire RV just died - engine shut off, all electrical went dark, no warning lights or alarms beforehand. Managed to coast to the shoulder safely, and after sitting about 5 minutes, everything mysteriously came back online and I could start up normally. It's like someone flipped both my house and chassis battery disconnect switches simultaneously. This exact same thing happened about two years back. My local shop couldn't reproduce the problem or find any stored codes. I'm thinking it's some kind of relay or solenoid that's overheating, but I need help tracking down which one. Anyone experienced this total power failure before? …more