I'm looking to build a 96V battery pack and I have some experience with 48V packs using prismatic cells and the JK BMS. I'm considering connecting two of my existing 48V packs in series to achieve this, but I'm unsure if my JK-PB2A16S-15P BMS can support it. If that's not possible, I'd appreciate recommendations for a different brand, ideally one that features active balancing.
3 Answers
What's the purpose of the 96V packs you're planning? I mean, that's a pretty high voltage. Are you pairing this with a powerful inverter or something? I’d guess that a 10kW inverter would be a solid match for that setup.
Most high voltage inverters I've seen require a special BMS that communicates with the inverter through a proprietary system. Just connecting two complete 48V batteries in series might be the easiest way to get 96V, with one BMS per battery, but I have my doubts that it will work with your inverter. What model are you using?
I'm using the Zamdon WD10396, the 10kW version. I've installed their 3kW and 12kW inverters without BMS communication before, and they've worked great.
Connecting two 48V packs in series for a 96V setup could work, but safety is a big concern. Once you cross 50V, you're in high voltage territory, which can be hazardous. In the U.S., anything over 50V requires specific safety measures, and working on a 96V system with exposed busbars can be risky. Just make sure to prioritize safety when building. Also, about the inverter, what model are you intending to use?
Yeah, safety is a major issue. It’s sketchy working on high voltage setups. As for the cables, mine are usually about two meters long, and they’ve worked well at that size.
Exactly! I’m looking at a 10kW inverter with a solar input of 11.5kW. I figured if I go with 96V, I might be able to use thinner wires, which would be nice.