Hi.
I run two “iCharger X8” chargers off two server power supplies I modified to run in series. The power supply can provide 70 Amps continuous at 24v output.
I charge my two 7s14p batteries at the same time at 20a charge rate because that’s 0.5c the Samsung 30Q cells prefer. Full charge takes about 2-3 hours depending on how far down the pack is.
These power supplies are $15 on eBay.
