I also suggest using one of the APC or some sort of backup power supply. I use several. My computer and digital have one each. It's like running on backup while the electric continuously charges the battery. I use the APC Back-up 500's with my power conditioners & serve protectors.
MPC 4000, MPC 3000, MPC 60II, S3000xl, Fantom G6, Motif XS8, Triton Studio, E-mu MP-7, Proteus 2000, Motif ES Rack, Fantom X Rack, Novation A-Station, ASR-X, a pair of Technics SL1210's and a pair of Technics SL-DZ1200's.