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  1. H

    What's the difference between charge controller and buck converter? For microgeneration

    Lots of great information. I like how while I have read all these resources before, it takes different viewpoints and responses to put it all into context. Thanks
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    What's the difference between charge controller and buck converter? For microgeneration

    That's kinda what I'm getting at, in a way. There does seem to be this window of battery life in which there is no consensus as to what a full charge cycle is, what constitutes one, ect... I'm probably not going this full route, but this is kinda the point, actually! I want to see what's...
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    What's the difference between charge controller and buck converter? For microgeneration

    In all of my reading so far, you have explained this the best, in a way that is actually understandable. Thank you, incredibly helpful. Hopefully you don't mind my followup questions! #1. What if you had said MPPT/PWM with a threshold of 4.0, but your load is such that your batteries are always...
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    What's the difference between charge controller and buck converter? For microgeneration

    Can you please explain how this is different in a setup with an MPPT or PWM controller? I don't mean this as a sarcastic comment, I really want to know. From my understanding, in a standard setup, your battery bank is receiving current from a charge controller and delivering load, both of those...
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    What's the difference between charge controller and buck converter? For microgeneration

    Let me clarify what I meant: If I set the buck output to 4.15V to charge a single cell, the cell will go up to 4.15 and the buck will equalize and cease charging the cell. Yet, if I set it to 4.15V, while using the cell and continually using a load off the same battery, the cell may never...
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    What's the difference between charge controller and buck converter? For microgeneration

    Ooo, excellent, thank you! I have read the page on your second link, about charge state and it's relationship to battery life. Understood. I guess I'll clarify, since I haven't build any of this yet: my value of 12V for a 3s bank was a concept value that I chose to demonstrate that choosing the...
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    What's the difference between charge controller and buck converter? For microgeneration

    Excellent reply, thank you. So #1, no issue #2, no issue with solar, issue with wind in high speeds. Separate dump load or mechanical slowdown needed in that case. Agreed on MPPT being more effective. Currently I'm not concerned with "efficient," I am just looking for "sufficient". I know it's...
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    What's the difference between charge controller and buck converter? For microgeneration

    Short question is in the title. Allow me to give details as to what I am looking for. I have ideas for building microgeneration systems, plural, and I am looking for individual components. In addition, I am looking to fully understand what every component of the system does, so I've got plenty...
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    Selecting BMS approach on my first build

    Ooo, good idea on the master switch. For either the LED or voltmeter. Thank you for that
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    Selecting BMS approach on my first build

    That's a very good point. And if anything, this thread is helping sway me in the direction of something like Batrium. I'm still a ways off from my final build, just wanted to make sure I was getting the right components together, so I have plenty of time to consider the best option. I will say...
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    Selecting BMS approach on my first build

    Thank you again, I appreciate your responses. I understand that this route seems silly,, that it won't have any active balancing for each pack, that it'll disconnect a pack and leave the troubleshooting up to me. However, from what you're telling me, this might seem the best option for my...
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    Selecting BMS approach on my first build

    Thank you. I do understand charging requirements and the importance of sourcing a charge controller compatible for 11.4V. Multiple charge controllers, as it will end up being. Each battery string having its own BMS makes it more modular and more upgradable than one big connected system. I...
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    Selecting BMS approach on my first build

    You are right regarding voltage, I should have been more specific. I was rounding up top 12; 11.4 nominal voltage is my plan. My fault. I don't plan on using lead acid. Reason for 12v system is that I am working on microgeneration via various methods, some of which won't be able to get up to...
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    Selecting BMS approach on my first build

    Hello, and thank you in advance for help. I am planning my powerwall build, and I have all the components understood and managed, but I'm having trouble wrapping my head around the correct approach to BMS that I should use for my system. Design is based around used 18650 cells, all used and...
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