I have a SpinaLogic bone growth stimulator. I only used it for 30 days, still runs off original battery and comes with four more. Also comes with padded case for machine.
General Information

Vendor Depuy Spine
Item SpinaLogic® Bone Growth Stimulator
Features 30 Minute Treatment Time
Combined Magnetic Field Technology
Ergonomic Design
Compliance Monitor
One Button Operation

Approval Worldwide
Product Number Inquire
Weight Inquire
Ultrasonic vs. PEMF CMF
Daily Wear Time 30 minutes

The SpinaLogic® Bone Growth Stimulator is a portable, battery-powered bone growth stimulator used as an adjunctive treatment for spinal fusion. The device is worn for 30 minutes each day and provides local magnetic field treatment to the fusion site. The device uses a unique technology, Combined Magnetic Field, to produce a very low energy signal that is very potent in its ability to stimulate the body's normal healing process. Clinical studies have proven that fusion success can be increased for patients that wear SpinaLogic Bone Growth Stimulator when compared to patients not using SpinaLogic Bone Growth Stimulator.