The EX800 mainboard is the same as the one in a Poly 800.
If you get the HAWK800 upgrade, you wont need that battery at all since memory would be upgraded to FLASH memory.
--- In korgpolyex@yahoogroups.com, Jason Adkins <jason_ralf808@...> wrote: > > Will this be the same for my EX-800? > > On 17 Nov 2012, at 02:06, backshall1 wrote: >