The original project goals were to support 42S & 48S. This was of course before we found a literal truckload of (only) 18S modules. Since that discovery, I've focused on 48S, given that it no longer makes sense to support 42S (which requires twice as many constrained 12S modules per vehicle).Is it bad that I'm hoping the 12s availability dictates shifting the project to 54s so I get my horsepower?
|If Individual Batteries Are Mailed Without Equipment:|
Based on my previous testing, the "220 V DCDC cutoff" is a precision threshold. Charing the pack to 215 volts (probably) ensures the DCDC won't shut down. Formally testing this across many DCDC converters is one engineering task to verify prior to supporting 54S. Assuming 215 yields enough headroom, that allows 3.98 volts... which I'd just round up to 4.00 volts (216 volts @54S).because the 220V OEM DC-DC converter maximum would force individual cell voltage of 3.67V max. Possibly only 50% SOC of the G3 NMC cells?