Acts will go head-to-head in a boxing ring-style stage and attempt to impress their respective coaches and guest Battle Advisors, who include Ana Matronic, Cerys Matthews and Paloma Faith.
will.i.am, Sir Tom Jones, Jessie J and Danny O'Donoghue must ditch one act from each battle so they end up with a final five heading into the live shows.
Singers squaring up on the show include Sophie Griffin and J Marie Cooper in Team Will, Vince Kidd and Jessica Hammond in Team Jessie and Max Milner and Bill Downs in Team Danny.
The Voice UK airs across Saturday (April 21) and Sunday (April 22) this weekend at 7pm on BBC One.
> 'The Voice' UK: How did it topple Simon Cowell and Britain's Got Talent?
> 'Voice' UK: Which coach has the best team? - poll
Read the full list of Voice Battles below:
[Sophie Griffin v J Marie Cooper]
Team Will's Battles:
Sophie Griffin v J Marie Cooper
Jenny Jones v Joelle Moses
Jaz Ellington v Jay Norton
Frances Wood v Kate Read
Heshima Thompson v Tyler James
[Ruth Brown v Deniece Pearson]
Team Tom's Battles:
Denise Morgan v Adam Isaac
Lindsey Butler v Matt and Sueleen
Barbara Bryceland v Leanne Mitchell
Ruth Brown v Deniece Pearson
Sam Buttery v Aundrea Nyle
[Vince Kidd v Jessica Hammond]
Team Jessie's Battles
Kirsten Joy v Toni Warne
Cassius Henry v David Faulkner
Becky Hill v Indie and Pixie
Ben Kelly v Ruth-Ann St Luce
Vince Kidd v Jessica Hammond
[Max Milner v Bill Downs]
Team Danny's Battles
Vince Freeman v Bo Bruce
Max Milner v Bill Downs
Murray Hockridge v Hannah Berney
David Julien v John James Newman
Aleks Josh v Emmy J Mac
Photo gallery - All Voice UK Battle Rounds: