As other reviews note, the 2022 model has the digital meters on the end rather than the top, and no carry handle. I prefer this change, it is easy to read the display from across the room.Unit is 100% plug and play and there is nothing to adjust. The only setup is to wind the included spiral cable wrap around the charge cord if you plan to use it.Charge starts immediately when plug is inserted. Jumps right up to 18 amps and holds it there until pack reaches 44.5v, then current tapers down. Voltage drops to 41.3v and enters float mode once it gets down to about 4 amps. Charger remains on and holding float voltage indefinitely to offset any losses from self discharge or onboard electronics. Fan is loud but necessary, and only turns on when needed. It's less obnoxious than the 60hz buzzzz of the original charger. Uses standard IEC connector if the (surprisingly beefy) power cord is ever lost or damaged.My only complaint is there is no on/off switch. You have to unplug it to fully turn it off.I've only had it a few days, so I can't speak for longevity yet. If something changes, this review will be updated. If you're reading this, it's still working like new.
Donald B Sherman 
