TheStealth
New member
- Joined
- Oct 29, 2020
- Messages
- 9
I've started collecting and processing 18650 cells that I will be integrating into a 7S##P battery in my solar shed project that that will be based around a MPP Solar LV2424. Any feedback on my design below would be much appreciated.
I have also started to do some research on BMS solutions, but am getting a bot confused with all the possibilities. For my project I would like the BMS to:
I like the idea of building a DIYBMS, but this is not an all in one solution. I do have some outstanding questions regarding this type of solution:
Mike
I have also started to do some research on BMS solutions, but am getting a bot confused with all the possibilities. For my project I would like the BMS to:
- Over/Under Charge Protection
- Over/Under Temperature Protection (under temp protection is critical since winter temperatures often go below -20C))
- Active Balancing
- Configurable
- Stats
- Daly SmartBMS (not really a great choice from what I can tell)
- JK BMS (seems there has been some success using these)
- DIYBMS (need to build it, but I like projects)
- Batrium (a bit too high priced for my small project)
- Another suggestion?
I like the idea of building a DIYBMS, but this is not an all in one solution. I do have some outstanding questions regarding this type of solution:
- From what I can tell I would need to either add some sort of battery disconnect controlled by DIYBMS (shunt trip, contactor, other?) to shut off the battery in case of a problem. What is the best/most efficient way to do this?
- Do I need to add some sort of disconnect to the solar panels as well? or will the MPP take care of this?
- Do i really need a shunt to measure battery current? What if I omit this?
- Are there any thing else I need to consider?
Mike