I don't know the math - but from experience I can attest its not a issue. If you have 3a cells and 2a cells a bit more current will flow in/out of the 3a cells compared to the 2a cells over the discharge cycle. 3000 to 2500 to 2000 is not a huge difference given adequate connections between the cells and the buss. You can't overcharge 1 cell or undercharge another cell when they are in parallel. It's important to understand that when you parallel cells - they ALL have exactly the same voltage all the time. I understand that when doing the 3 x 7s100p system, you will still ultimately end up with the same requirements for wire gauge to draw the 75amps, for example going to a 3000w inverter. Things like BMS requirements as well as wiring/busbars (see below).Īlso, correct me if I am wrong, but going the 3 x 7s100p system would also allow smaller gauge wire/busbars for the 100p's versus going the 7s300p route? I am ONLY discussing the wire/system for the busbars for the 100p or 300p packs. To highlight some of the more important elements, from the aspect of the size of the system (3kw system in the above example from a 24V battery) and understanding the ramifications and how they, directly, impact system setup. ![]() ![]() Especially for people building 'smaller' systems, systems that are not always going to continue to grow (I think systems of that nature tend to be 'easier' to plan because you're always adding stuff). The systems above 'sound' the same but even in this simple explanation it's clear there are considerations that, I believe, many are not inherently aware of when thinking about the design of their systems. ![]() This is a great question and answer and I think would be a useful explanation, particularly in some form in the FAQ, when it comes to pack design, system setup, etc.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |