I do not need to charge the remote on the multi charger just the flight batteries. Are the connectors the same? and is that extra 0.6v of charge power going to hurt the Autel battery?Both are 4S LiPo batteries with a smart balance board inside the battery itself that does the balancing. DJI P3 battery charger charges at 17.4v Autel XSP charges at 16.8.
Where DJI P3 & XSP differ greatly is with the Remotes. XSP uses a 1S LiPo (4.2v). DJI P3 uses a 2S Lipo in the Remote(8.4v). Most of those Multi-chargers put 17.4v out on the remote charging branch socket and that is where you will want to be careful.