replacement battery?

I am not an expert in Garden Machinery - or anything else come to that...

It helps to give a little more information - the Brand for instance but no matter...

PHT18 solves as
Performance Power Hedge Trimmer 18volts (B&Q)

Solent Tools claim to sell spares for the Performance Power range...

http://www.solenttools.co.uk/p0/performance-power-garden-parts/332497.htm

They may be able to help you...

Good luck...

Peccavi
August 2013