Hello! I’m currently studying at YouTube University and am inexperienced with electrical. I have a MultiPlus ii 24/3000 120/70 inverter charger and I’m gonna put it into a box truck I converted. I will be drawing serious power some days as I’m a serious gamer. I have an rtx 5090 so my pc will draw quite a bit of power.
I wanna be able to charge with my generator in case my power gets too low. 50A sounds really solid to me because my generator can do that and I’ll be able to hook my pc to the generator as well fully utilizing it. From my research people use 50A for split phasing. I see people say you can use a single leg and put it into the inverter. But I wanna get a direct answer before I burn my box truck down
I have no intention of using the other leg so I assume I only need 3 wires right? The plug for some reason doesnt need both legs? Will it charge at 50A? If I set my multiplus to 50 but only 40 is being supplied, can that cause an issue? Am I best of just going with 30A shore power? I have no intention of plugging in, I’m a boondocker. So only my generator will connect to shore.
A 50 amp rv plug is split phase 120/240v. This would only be useful if you were using a 2x120 victron unit that can pass though the second leg
Assuming you’re just wiring in something pretty simple a 30amp rv style supply and a single phase 120v inverter is all you need. Input current can be limited to meet the installations needs
No, the 24/3000 unit will be able to charge the 24v batteries up to 70a if sufficient shore/generator power is available. Depending on the model it can pass through either 30 or 50a of 120v power and will supply roughly 20a 120v from the inverter
I went ahead and ordered the 24/5000 version. It shows 120/95. The input is 95A but it says max charge is 120A. What does the input mean? Does it mean i could only charge at 95A?
It can charge the batteries at 24v-120a, pass through 120v-95a (which you’ll never feed from an rv plug or any practical sized generator) and it would be able to supply roughly 120v-30a while inverting
Fantastic. Yeah I already bought a beefier generator so I’ll run my more power hunger things directly off of it so I can get the full charge for my batteries. Thanks man you helped out big time!
That inverter is going to eat up pretty much a whole 30a/120v just to charge the batteries, that doesn’t leave much room for running anything else if you expect to charge at max and run 120v gadgets off of it at the same time
What kind of generator are you looking at using here?
It’s a champion something. It’s rated at 5000 running watts. My plan is it so buy a 20A shore inlet and connect that to a 20A extension cord thingy, I was thinking of this Amazon.com
Then if I run low on power and I’m without sunlight I’m gonna run the generator. I’m gonna connect the 30A cord to my 30A inlet that goes to the inverter and if I wanna play my computer and stuff I’ll connect the 20A cord to my 20A inlet that goes to that extension cord. Then I’ll connect my tv since it’s a 4k Oled and it’s power hungry with my computer to the outlet to run off the generator. I calculated that my generator will run up at max between 75% to 80%. This way I can fully utilize my generator and charge my batteries the fastest way. I have 6 435W solar panels on the roof so I’m not planning on needing my generator too often it’s just in case.
Alright! I looked into it and ordered the smart dongle to connect to my computer. I was planning on just doing it on the pc connected to the inverter. I’ll do research on the AC in and stuff once it arrives. Thanks for the recommendation!
The Multiplus prioritizes AC power consumption over battery charging.
If there is 30 amps at the AC-In and there is a 20 amp draw on the AC-out then that leaves ~10 amps (AC) to charge the batteries. If there is a full 20 amp draw on the AC-out then no battery charging takes place.
Yes I realize that, but the OP seems quite concerned about maximizing charge rate, that’s not going to happen when a/c loads are eating up the majority of shore power
