I ordered a replacement battery through the Dell support chat window (Note: You can't search for it on Dell.com) Product Ref JHXPY -  . I installed it in my Dell XPS 13 9350 and it's working fine.    
hi there, can someone recommend functional replacement battery for above mentioned laptop? My old battery is swollen so I rather took it out. I tried two new batteries and no one of them worked properly. Thanks, Alois. 
XPS 13 9350, battery replacement