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    For Sale: Fortune 100ah cells, Overkill Solar 24v BMS (Seattle)

    Did this sell? I'm in Portland, could meet you just south of Seattle.
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    Connecting different amp hours in parallel

    Ok, makes sense. Also seems to be a better idea to repurpose the 60AH (since it's such a large power diff) to a different project and focus on the 280AH for the main house system.
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    Connecting different amp hours in parallel

    @FilterGuy if I have a 16S 60AH with a 100a BMS, and a 16s 280AH with a 100a BMS, does that mean I have 200a draw and 340AH total? Thank you for being patient while I struggle with the basics.
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    Connecting different amp hours in parallel

    Ok! That makes sense. I doubt you miscommunicated, I probably misheard. So in that case I'm going to switch to a Daly BMS because these batteries will never arrive on a second order.
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    Connecting different amp hours in parallel

    @FilterGuy First battery is 16S 48v 60ah Fortune Cells. Second battery is 2x 8s24v in series with 280AH Lishen Cells. I'm doing 2x 8S to get to 200 amps using overkill BMS (we chatted briefly on my other thread) Follow up question. If one bank can do 200 amps, and the other can only do 100...
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    Connecting different amp hours in parallel

    Hi! I tried to research this. But I came across a lot of conflicting information. I built my first battery, a 60AH 48v Fortune bank w/ 100amp Overkill BMS. I'm going to build my second battery when parts arrive (if they arrive) 280AH 48v Lishen w/ 2x 8s Overkill BMS (increase the amps)...
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    Building a house battery backup

    There def is a way to run the heat pump only. I really need to learn how to use one of those magnetic wattage measuring tools...
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    Building a house battery backup

    @FilterGuy I don't know how I'm just now seeing all those incredibly useful links in your sig. Going to be doing some reading tonight!
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    Socket head dropped and sparked, is this a short?

    I am such a newbie, and still learning a lot of my math and basic concepts (I learn the fastest by going straight for the deep end). How would I be able to calculate that?
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    Socket head dropped and sparked, is this a short?

    Take a look at my screenshot of the BMS. I had just top balanced to 3.6v, the two affected cells are now at 3.3v
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    Building a house battery backup

    @wattmatters sounds like I should just drop the water heater, it doesn't really make sense to use it. I am using a 50gal Rheem Hybrid water heater, and now that I'm looking at the spec sheet it's ludicrous to even try keeping it going. It's 4500 watts...
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    Building a house battery backup

    @FilterGuy thank you, amazing advice. I just built a 16S pack with the 60AH Fortune cells (was getting tired of waiting for my Chinese cells that are no doubt stuck in a port somewhere). I wanted to combine this with my 240AH cells that are coming, but I used my Overkill 48v on this pack. For...
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    Socket head dropped and sparked, is this a short?

    Should I disconnect the BMS before top balancing?
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    Socket head dropped and sparked, is this a short?

    Totally newbie here. I'm building my first battery, 16S48v with Fortune cells. I just top balanced to 3.6v (took two weeks). I was putting my BMS on, when I dropped the Ratchet. The socket head connected the positive and negative of two batteries, sparks flew and a flame shot up. I grabbed...
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    Building a house battery backup

    Ok, this is something I'm not understand then. The BMS will limit the amperage for the battery? What other BMS should I look at?
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    Building a house battery backup

    Hey guys, beginner here, but I've been planning my system for a while. Right now I'm focused on a 48v battery system that charges off of the grid and can be used to power house necessities in the case of a power outage. Eventually I will add solar into the mix when I figure out my panel...
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    SanTan Used Panels on 48v System

    Thanks guys! That explains a whole lot of things I was confused about! @chrisski very true about the energy audit. Right now I’m just trying to build something that can run a fridge, some lights, and charge phones. The HVAC is a 240v mini-split, so that would require a more advanced built...
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    SanTan Used Panels on 48v System

    Hi! Super newbie to the solar world. Currently in Oregon experience 4+ days of outage, and figured now’s the time to start building my solar array. I wanted to go with Will’s AIO 48v system, and build it in my shed with at least 800w on the roof. I was looking at the “dirt cheap” used...
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