Instruct: Classify a given review as either positive or negative.
Query: 100 dollars every 1.5 years to replace the battery

My Mio stopped working after about a year. I contacted the company and was informed the battery life is about 1.5 years. Mio charges 100 dollars to replace the battery and insists upon your shipping the device UPS. Just be aware it works great for a year or so but appears to have an annual cost of 100 + dollars a year in upkeep for battery.