Recent content by blutow

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    Solar Van Install - Consultant Wanted For Hire

    I’m certainly no solar consultant, but the 3rd company seems like the only one presenting anything reasonable. The others might be capable, but their rrrsponses seem lazy at best and a bit suspect.
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    400w solaria panel on sprinter van

    I considered those. I used their roof adapters for my fan and AC and also got my insulation and just ordered some speaker adapters from DIY vans. They make great stuff. ~$240 for 3 sets of brackets was a bit rich for me and I like playing with metal. I was also concerned about the strength...
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    400w solaria panel on sprinter van

    yeah, I know. I am replacing the regular nuts holding the brackets with some acorn nuts. I'll need to bring some windex up the ladder when I swap them out. I keep telling myself I'll never see it, but I know those fingerprints are up there..... Thanks, I'm trying to keep everything clean...
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    13 kWh Lishen van build

    Thanks. It’s a solaria 400 watt panel
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    13 kWh Lishen van build

    I got my solar panel installed yesterday. I've been top balancing and cycle testing all my packs now that they are sorted by capacity. I have completed the testing on 3 of the 4 and the results are good. No drastic changes after being matched, but a little less issues with runners at the top...
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    400w solaria panel on sprinter van

    I just completed the install of my solaria 400w panel. Pretty tight fit behind the AC unit without overhanging the back, so there will be some shading from the AC at times. The AC is as far forward as possible with the hole right up against a ceiling rib. I fabricated the mounting brackets...
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    13 kWh Lishen van build

    Not a dumb question, you need a special meter to do it. See pic below. My understanding is that these are not terribly accurate on cells larger than 100AH, but it's what most of the vendors use when testing/matching by IR and voltage. I was mostly concerned about comparison between cells, not...
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    13 kWh Lishen van build

    Not a dumb question, you need something l
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    13 kWh Lishen van build

    I finally completed individual cell testing today. 1 cell every 2 days, right on target after 32 days with no issues or surprises. Final results below. Capacity ranged from 282.29 to 288.84 AH. They were all tested using the same protocol. I detailed that in a prior post. Bascially, I...
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    13 kWh Lishen van build

    I don't think the cerbo would prevent another connection, but not sure about that either. I think the only way to prevent open , bluetooth access on those BMS's is to disconnect the bluetooth. If I had a serial connection to the cerbo and could see all my BMS info, that would give me a path to...
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    13 kWh Lishen van build

    Interesting. It looks like it requires a wired (serial?) connection. My bms’s didn’t come with any connection wires, I guess I need something. Need to research. One thing that bothers me a little about the overkill bms’s is that there is no way to lock down access via Bluetooth (except...
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    My new 272 ah Lishen cells arrived

    Sounds like a good plan, but I wouldn't limit the initial charge to 3.45v per cell (I assume you mean 27.6v for the pack, the cell voltages will vary). Charge them up to normal (at least 28.2v, that will get you much closer to full). Your BMS might kill the charge early if your cells are not...
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    Capacity Test on a BB 12v 100aH Battery

    Why did you disconnect the battery at 17 hours? There is plenty of capacity remaining at 12.6v, especially if that was the voltage showing at the capacity tester (which will be lower than actual battery voltage). Just run the capacity test until the BMS shuts the battery off. The battery...
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    Capacity Test on a BB 12v 100aH Battery

    Since you have the battery BMS protecting the cells, the low voltage setting on the capacity tester should just be set low enough to make sure it's doesn't end the test too early. You should be able to see the setting by just clicking through the different pages using the single button on the...
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    Capacity Test on a BB 12v 100aH Battery

    It looks like you are right on track. Assuming the battery hits 100Ah capacity, the test would take 20 hours at 5a. You should have another ~5 hours to go. Once it hits around 12V (per multimeter), it will start dropping quick. What is your setting for low voltage cutt off on the capacity...
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