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  1. J

    Open source BMS for 48V to 400V lithium-ion battery pack

    Here's the issue with solar and off grid right now that I think poses an opportunity for you: All of the all in one systems are 48V unless you spend big money and have a predesigned 384V battery. This leads to inefficiencies, but it's cheaper to setup batteries that way. All of the off the...
  2. J

    DC in Tesla Level 2 Charging?

    So, most electronics will accept 340 VDC (or 170 VDC) input and pass it through the rectification stage with a slight loss because of the diodes but have no problem using it. I've successfully done this with TVs, Apple TVs, computers, and more. It just works. I've yet to find anything other than...
  3. J

    Open source BMS for 48V to 400V lithium-ion battery pack

    I'm working with INV (out of China) to see about using their MPPT/Inverter/AC Charger system. The nice thing with their system is that it works from 32S to 112S on LiFePo4 and 12kW per inverter. It seems like an almost ideal fit with this BMS. Are there definitions for the RS485 or Can...
  4. J

    Open source BMS for 48V to 400V lithium-ion battery pack

    Definitely takes a team... As I said, I'm happy to help with software.
  5. J

    Open source BMS for 48V to 400V lithium-ion battery pack

    I'd love to see your thoughts on my proposal on the link I shared: https://endless-sphere.com/forums/viewtopic.php?f=41&t=114918 I really think there is a business model there.
  6. J

    Open source BMS for 48V to 400V lithium-ion battery pack

    OK. https://endless-sphere.com/forums/viewtopic.php?f=41&t=114918
  7. J

    Integrated, Scalable Solar/Battery/AC Charging/Inverting/EV DC Charging and More

    See here: https://endless-sphere.com/forums/viewtopic.php?f=14&t=92952&e=1&view=unread#p1699601 I think that this open source BMS is amazing and I'm working on something for which this is a component. I'm a casual EE person, not a pro, but I write software for a living in many languages and can...
  8. J

    Open source BMS for 48V to 400V lithium-ion battery pack

    This is excellent! I've been looking for something like this for quite a while. Does anyone know of an equivalent project for high voltage MPPT? (up to 600-900V solar in, and 120S battery?) And anyone know of an equivalent project for high voltage Pure Sine Wave Inverter that is parallelable...
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