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680ah LifePo4 Victron 2x120 pass through inveter 1140w solar My inverter has been shutting down due to “Low Battery.” However the SOC is at 73% and the discharge floor is at 20%. Here’s are some screen shots of my settings. Ideas?

My available Ah and SOC don’t seem to reset very accurately when recharging. Woke up this morning to this 56% SOC Couple hours later with very little use and decent Solar coming in I am down to 50%. Battery voltage is higher. Drawing about 2 amps @120v Do I have something wrong in setting...

Considering adding a couple of Current Transformers where shore power comes in to the ATS to monitor shore power quality. I can get a pair with remote display and mount in a box next to ATS. I see my Multiplus II 2x120 has a connection for one CT but that doesn’t really help. Looking at adding...

My Multiplus II is blocking out one leg of my Onan generator. I am getting only 30amps of output through the inverter and occasionally I tri0 the Generator 30am0 breaker. I have read a fair amount but do not know that path to take to rectify it. Any input? Victron Multiplus II 2x120 Onan QD8000...

Anyone come up with a good Victron Bluetooth signal solution? I have a 38' Class A with all my gear in the center belly storage area. I have installed the Bluetooth Dongle extender to reach closer to the side, but I basically have to be outside next to the storage bays to get a decent...

I installed the Multiplus II 2x120 in my Class A back in the fall and am coming off the first big trip with it. Couple comments: Super nice to be able to run a anything off the inverter. We even ran one AC unit at a marina for a couple hours. Inverter provided good power while Solar was...

Installed my Multiplus II a few months back. All good. Started out on a big trip today and the inverter keeps shutting down due to Low Battery Voltage. Batteries are 13.3v, fully charged for my batteries, so no issue there. I reset, disconnected and checked everything to no avail. Any...

First trial run with my new Multiplus II 50amp inverter. Took a couple screen shots to review data. Plugged into 50amp shore power. Inverter/charger is setup for max charging of 120 amps. Is this telling me I am only getting about 20amp of shore power and only 3 amps for charging?

Finished the upgrade of my Victron Multiplus II 2x120. Here are some notes from the install. 1) Had to run new 6/4 from auto transfer switch to inverter And from inverter to 120v panel. Previous wiring had the wiring going from auto transfer to panel and then out and back to inverter. This...

Ok, so getting my new Multiplus ii 2x120 installed in my RV. The terminal block for the AC in and AC out is a push-in type connector. I am having a bear of a time getting my high strand wires to seat properly. Anyone fight with this issue? I am concerned some of the strands will not make it...

Going from a Magnum MS2812 to the Victron Multiplus II 2x120v. It appears that currently L1 runs to the inverter and then to part of the 120v split us panel, and L2 goes directly to the second part of the split bus 120v panel. So basically only items on the L1 side of the 120v panel will work...

I have a Victron Solar Controller & Victron Smart Shunt set-up in my RV. I can't figure out why the SOC does not increase as the voltage rises. Here is am example a couple days apart. The higher voltage reflects the increase in battery charge and should increase the SOC, but the Consumed AH...

I have 680ah of 12v LifePO4 batteries. Changing at 14.6v per specifications and they are settling fully charged at 13.4v I have the Victron Smart Shunt installed and am using the blue tooth app to monitor. My issue is the state of charge does no reset as it is recharged. So I'll draw down...

I am using the Victron Smart Shunt as well as Victron VE Bluetooth Smart Dongle. The Shunts' bluetooth range was very small so I added the Dongle to extend it. It is better but still not good enough for coverage around the rig. Does anyone know the types of connectors used on these so I can...

Running a Victron MPPT and smart shunt through VE connect. Trying to understand a few things. 100%SOC is 13.2v LifePO4 w/solar It seems the SOC calculation is taking the 13.2 less AH used, except solar and/or shore power are connected so the voltage reading is actually above SOC. Shows 87%...

I’ve read a lot about this running AC in battery/solar, but it seems the calculation details are lacking on the large systems. So here’s what I’m chasing. (1) 13,500BTU AC consuming 15amps at start-up and 13 amps when running. Soft start is installed. My fridge consumes about 2 amps while...

I have 1140watts of Solar and an MPPT which will handle 1200watts @ 12v. I am considering adding another array of 3-panels, 570watts. I know at full sun the MPPT will limit the power generation, but at anything less than that, which is 95% of the time, I will see a bump of output up to 50%. Is...

I have 1200 watts for solar 680ah of 12v LifePO4 batteries 85amp Victron controller What size Circuit Breaker should be between the controller and batteries? TIA

Considering adding a second inverter to my 12v system. Anyone done this? I am looking over the drawings and trying to figure out how to install it given the Shore/Genny ATS Power and existing inverter. TIA

I want to increase my inverter from the 2,800 Watt Pure Sign Wave one I have in my RV. Haven’t seen many options in this range without spending crazy money. Any suggestions?

Trying to figure out how to manage lithium with alternator. Here's my setup 680ah LifePO4 Coach Batteries 2 - 100ah AGM Chassis Batteries 1200 watts solar charging Coach Batteries 100 watt solar charging Chassis Batteries 8kw Generator Charging both Chassis/Coach Batteries Engine Alternator...

1200 watts 12v HQST Panels Victron 150/70 MPPT Custom Tilt Brackets 680ah Big Battery LifePo4 Magnum MS2812 Inverter/Converter Could not have done it without all the knowledge and support here.

Finished install. Have a 12v battery setup and approx 40v coming in from 12v 2S3P panels. Can not get MPPT to charge. Reviewed all setting etc. any ideas? Thank you

Dumb question but not sure on polarity on my controller.....

About to start mounting, but as I lay brackets on the roof I notice a significant crown. Like the mounts have 1/4” gap on one end with the other end flush. I was going to VHB them but now I am thinking I will have to use a couple screws as well to keep mount down. Thoughts? Thank you

I just finished a Lithium install in my RV with 4-170ah 12v Big Battery LifePO4 batteries in parallel. I am finalizing the setting in my charger/invert and have some questions. Spec's say to charge at 14.6v - what voltage should the batteries settle at when 100% My Victron Smart Shunt seems to...

I want to add some panels but will exceeded my current Solar Controller capacity. So can I add a second Controller to handle the additional panels or do I need to add a second Controller the same as the first one?

Anyone install it? My existing BIM has Chassis and Coach Battery Feeds, plus Ground, Ignition, GenSet and Switch allowing you top bridge between Chassis and Coach Batteries for starting assist. The new Lithium one has Chass and Coach Battery Feeds, Ignition, Ground and Switch. Anyone install...

Laying out an 8 x 200 watt system and trying to pick my controller. I'd like to use a 4S2P configuration, but is 100 volts to much for a roof mounted mobile system? If I go to a 2S4P I need to increase the main wire size to the controller and I was trying to avoid that. 8 Panels 8 Panels...

Trying to install some Big Battery 12v 170AH batteries in parallel, four actually. The batteries have Anderson SB175 connectors, but according to my calculations I want to run 4/0 cable which is too big for the connector. I would need to go to the SB350 connector. The batteries have 4awg...

Starting my conversion on my Class A DP. The existing house batteries are located below a basement storage cabinet which is open and exposed to the weather under the coach. Is that acceptable for a Lithium Installation?

Looking for help/confirmation on wire sizing. 6 x 200watt 5.36amp 24v panels - Feeding 4 x 100ah 24v Batteries - 4awg run to controller I am planning on running 10awg between the panels and then 8awg single run to the controller. I'd like to run all 10awg, but I will be running 32amps which is...

I am building a system on my RV, 4 - 200 Watt 24 Rich Solar Panels in Parallel MPPT 50amp Controller Trying to confirm PV Wire size. I’ll join two pairs of panels in parallel and then join those to leads. From what I see I’ll need 8awg to carry roughly 25’ to the charge controller. First, is...