zanydroid
Solar Wizard
Couple posts up you said one of those throttles to 750W on 120V, you can easily get 120V generators at 1500W or 3000W
psa: Chargeverter is LOUD
- Thread starter novaleaf
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hwy17
Anti-Solar Enthusiast
Oh right, but you can solve that by using the 2300W version instead, which can do about 1400W on 120v.
But there's the complication my 1600W inverter generator couldn't start up the 2300W version. I didn't try turning down the output current to see if that would allow it to start up though. It's possible that would help if it's initially trying to go to full power and then throttle down to the 120v limit only after it sees the high input amperage.
wpns
Solar Joules are catch and release
I think (hope) that the ChargeVerter GC ramps up slowly. My first one arrived yesterday, so hope to try it this weekend on a Honda EU3000is
Brucey
Solar Wizard
Yes seems like quite a bit of inrush when they start up. My main goal is silence, no tolerance for a screaming little fan. I'll figure out closer to winter when I may need it. Might be able to run two of the 1000W off my Honda eu2200 assuming the derate to around 700W each and startup may be acceptable, plus some redundancy there.
wpns
Solar Joules are catch and release
Staged startup might help, let us know!
hwy17
Anti-Solar Enthusiast
I will see if I can do some more testing this summer. There are several things that might fix it.
1. Mine is a pulsar 2200W that's rated for 1600W on propane, and I was on propane.
2. I was using 125ft of 12 awg extension cord.
3. Adjusting the output current down to the intended power output, rather than relying on the automatic derating mechanism.
zanydroid
Solar Wizard
At some power level the $300 step-up transformer will crossover on cost advantage (it also allows the 120V generator to power both phases if it comes to it). Since it reduces the amount of power converter by 30-40%
It is a pretty massive solution though.
Brucey
Solar Wizard
Oh I didn't realize we can adjust the current as well as the voltage on these.
hwy17
Anti-Solar Enthusiast
Yes. It has two little very sensitive adjustment pots that you turn with an eyeglass repair kit sized philips screwdriver to set the max voltage and max current.
Also, the 2300W at least, can be programmed with an additional dongle they sell for $50 and it can set 3 stage charge profiles too. I don't remember if the 1000W can also be programmed like that. I wanted to have the option, but I didn't buy the dongle right away and I don't see myself needing it ever so far. One voltage is fine with me.
zanydroid
Solar Wizard
I think the Chargeverter 2 has easier adjustability. Wonder if anyone has gotten their hands on one to check the noise level. Not holding out much hope though — CV1 used what I consider data center style components… and in that domain noise doesn’t matter 
I have the chargeverter 2 and it isnt that loud to me.
That said I have been dealing with crypto miners allot lately so nothing with a fan is loud to me after those
Also it ramps up slowly to whatever you set it to charge rate wise.
That said I have been dealing with crypto miners allot lately so nothing with a fan is loud to me after those
Also it ramps up slowly to whatever you set it to charge rate wise.
Brucey
Solar Wizard
Prob lost most of your hearing from the little screamers...I have the chargeverter 2 and it isnt that loud to me.
That said I have been dealing with crypto miners allot lately so nothing with a fan is loud to me after those
Also it ramps up slowly to whatever you set it to charge rate wise.
If I haven't I probably will. I plan on running a few hundred of them
The wife kept saying I was going overboard on wanting to sound proof the garage until she heard the first one in action. She was helping me plan out the insulation after that.
mmmmmdonuts
New Member
I have chargverter 2 and how loud it is dependent on voltage of the charger. So charging at a higher voltage makes it louder. So as your battery gets closer to full charge and lighter load the fan gets louder which is quite annoying.
For comparison I have an EG4 6000XP next to it and it is whisper quiet in comparison under 2kW load.
I do like the transformer idea a lot since my main charger is generally solar or the EG4. I do worry with the generator starting into a transformer like that. Does anyone have experience with the auto transformer or other recommendations?
For comparison I have an EG4 6000XP next to it and it is whisper quiet in comparison under 2kW load.
I do like the transformer idea a lot since my main charger is generally solar or the EG4. I do worry with the generator starting into a transformer like that. Does anyone have experience with the auto transformer or other recommendations?
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mmmmmdonuts
New Member
Was looking a little more at both the HEP-2300-55 and the UHP-2500-48 both by meanwell and they de-rate around 60-70% for the charger on 120v.
Do you think it would make sense to buy a step up transformer box to handle the additional power? Transformer. Or possibly add a smaller version or two on the output.
My goal is to handle a 30A RV 120V input if possible but 2-2.5kW is probably enough and use the battery charger to handle the loads.
Do you think it would make sense to buy a step up transformer box to handle the additional power? Transformer. Or possibly add a smaller version or two on the output.
My goal is to handle a 30A RV 120V input if possible but 2-2.5kW is probably enough and use the battery charger to handle the loads.
hwy17
Anti-Solar Enthusiast
Are you planning to be placed with a 30 amp 120 pedestal but no 240? Is that common?
zanydroid
Solar Wizard
That is TT-30 which i think is fairly common
hwy17
Anti-Solar Enthusiast
Yeah I just figured out there at paid parking spots it was common to have both tt-30 and 14-50 available, but idk I'm not an RVer.
mmmmmdonuts
New Member
Yes it would be the tt-30 amp. Basically I have a 48V RV system that feeds the EG 6000XP when on 50A which some parks have but a lot only have the TT-30A at least in NY or when boondocking on a generator. Really biggest load I have is AC on and microwave on at the same time.
Basically I use the 50A whenever possible as it is a bypass through the charger. I have also thought of using a 120V to 120V/240V split phase transformer but it looks like that will be big and heavy. The transformer isn't bad priced at Larson electronics at $700 but the shipping is nearly $400 for 100lb transformer and I worry about the transformer hum.
Brucey
Solar Wizard
Maybe two of the smaller ones to give you some redundancy?
mmmmmdonuts
New Member
I think honestly that is what I am going to do. I am looking at some datasheets etc. for it. I am debating the UHP vs the HEP. About $400 difference but the HEP is for harsh environments, already has the heatsink etc. May start with one and go from there if it works. Just going to do some more research on them and see prices what differences come out as.
hwy17
Anti-Solar Enthusiast
For a mobile install consider the one that comes with wires instead of terminals.
hep-2300-55w I think
hep-2300-55w I think
wpns
Solar Joules are catch and release
Wow, I thought the ChargeVerter was loud, but I just fired up a pair of 18 KV‘s in parallel, and I’m sure glad no one‘s living in my boathouse.
mmmmmdonuts
New Member
I took some time to go through and look at the various Meanwell supply's that seem to work. It is really interesting because de-rating's can hurt you quite significantly especially at the 115V line voltage. These are all the fanless supplies by the way. What's interesting is you can get more current out of 2x of the 1000W than a single 2500W power supply at the lower line voltage. Size wise a single bigger supply is a better fit than two of the 1000W ones. They also have a smaller inrush current. I guess the question is how well would two or even 3 share. It would be nice for redundancy as well.
| Part Number | Manufacturer | Output Current (A) | Max Load at 115V | Derated Current | Output Voltage Range | Efficiency | Price | Price / Watt | Price / Watt (115V) | Notes |
| UHP-1000-48 | Meanwell | 21 | 100% | 21 | 48-57.6V | 95% | $273 | $0.27 | $0.27 | No derating on 115V until 40C baseplate |
| UHP-1500-48 | Meanwell | 31.5 | 0.75 | 23.625 | 48-57.6V | 95% | $438 | $0.29 | $0.39 | |
| UHP-2500-48 | Meanwell | 52.1 | 0.65 | 33.865 | 48-57.6V | 95% | $589 | $0.24 | $0.36 | |
| HEP-2300-55 | Meanwell | 41.8A (48A max) | 0.6 | 25.08 | 48-57.6V | 95.50% | $855 | $0.37 | $0.62 | *Output current is 83.3% at 57.6V |
hwy17
Anti-Solar Enthusiast
I am not positive about the applicability of the UHP series to battery charging.
I don't immediately see a reason why they won't behave as a CV/CC source same as HEP series. But we know that the HEP series are endorsed for charging and I don't see the same assurances about the UHP which seem designed more towards regular load power supply applications.
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