Recent content by HrKlev

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    Advice for powerwall

    Yeah, I actually got 5 of the ANT bms's running in different vehicles around here, 4 of the "old" types and one of the "new" 21 version. All from same seller, ICgogo or something. Oldest one are 3 years now. All of them are keeping the packs perfectly balanced (even though the 2 that is running...
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    Advice for powerwall

    Thanks. I agree, just needed to know Im not crazy for using a handful chinese BMS'es instead of one fancy :lol: That means I can use a Victron battery monitor to track Amps, SOC, and so on, so one less thing to integrate. It will be a 14s, so ~52V. Harstad, I think they have a few minutes...
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    My attempt at a lightweight EMTB with torque based PAS

    Sorry, didnt notice the replies to the thread, I havent had too much time for ES lately. On my setup (dont know if any of the colors have changed lately): RPM from Torque sensor is green, connected to Cycle analyst yellow Torque signal from torque sensor is white, connected to Cycle Analyst...
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    Advice for powerwall

    Yes, I think I understand and agree. Thanks for your feedback! So what would you do? 6 chinese bms'es or one centralized batrium?
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    Advice for powerwall

    I will be hooking up a victron multiplus (possibly 2 in next stage). So I can charge the batteries with the multiplus on nights (in winter) and the solar array (in summer) in combination with the battery will keep the consumption during the day low. The prices differ widely throughout the day...
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    Advice for powerwall

    Yes, I agree about the balance leads are often overlooked. I have tried to protect them as good as possible o my small battery packs, but without fuses, it is a pretty big risk anyway. I think i will take the time to use some fuses on the balance wires on this pack. I saw some pack builders on...
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    Advice for powerwall

    Appreciate the input! 1. What kind of current do you think such a tab could carry? I am not worried about the balance current, but the current through parallel wires if a battery would have some kind of internal fault. 2. I was thinking about using something like this for each parallel group...
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    Advice for powerwall

    Hi guys! I know this is maybe not the main subject of this forum, but there's a lot of knowledge here, so I thought I should give it a go. Long story short, I am building a powerwall, and scored a great deal on a 24kwh e-golf pack. I had limited time to do research, and after disassembling the...
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    Votol EM-100 & EM-150 controllers

    I had the same problems and used a lot if time trying to figure out what was going on. Solution? Turned off "low beake" on page 3. I have no idea why, but it is repeatable on my vehicle. Regen on low break signal works without the box ticked, so I have no idea what this box does. Except make my...
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    My attempt at a lightweight EMTB with torque based PAS

    Thanks! They are holding up quite good. I've replaced the freewheel on the fatty 2 times, but apart from that, only normal bike-stuff that needs fixing. They are only used for tecnical single trail, so maintenance is quite high and mileage low compared to road-use, but they have reached around...
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    Hubmotor hydro generator

    There's a 10ft wide concrete dam at the "top" of the head, so I guess the velocity will be the result of how I build the sluice. I will probably build it in concrete in the middle of summer, the creek is usually close to dry a couple of weeks. The wheel will probably be steel. A breast shot or...
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    Hubmotor hydro generator

    I have this creek running through my property. It is only a 60cm (23") head, but it usually flows more than 3000lpm (790 gpm) throughout the year. I know it is not enough to generate a whole lot of power, and its definately not cost effective, but I want to build a water wheel. Mostly because it...
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    Electric Quad ATV

    The battery is a 20s1p, and I pull 220A from it. I think the LEV40 is rated for 300A continious, but dont remember exactly. The pack is sagging like 2-3V on full throttle, so they have a lot more in them than I am using.
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    Recommend me a controller

    Thanks! I see it is a version on aliexpress called ND72850 which is supposedly 450A battery and 850A phase. I will try to search around a little, but a Fardriver is starting to get really tempting...
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    Recommend me a controller

    Guys, I could need some recommendations for a controller. It is about a vehicle that is already converted, and it is almost doing what it should do.... Here's the short version: Old Polaris 6x6 converted with a QS 138 3kW mid motor. I have kept the original driveline and gearbox, so in the "Low"...
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