Can 350s shunt on batteries, or would this be using a locomotive, in which case what is the power for?
Use of a shunt loco with the batteries on and also in restrictive drive to allow brake release and control should something go wrong with the coupler on the shunter! Theres no translator so just use two people, one in the unit and one in the loco.
If it's a very short move in the shed without power we just push them by hand!