Instruct: Classify a given review into positive or negative sentiment.
Query: Far from OEM quality

You'd think that OEM and generic replacement batteries would come from the same few major manufacturers and be comparable in quality. Not so. I've had a set of Uniden phones for seven years. The OEM batteries saw me through 4-5 years. These aftermarket units have an MTBF of less than two years so I'm starting on my third set of replacements, which this time will be of a different make. If you can get a guarantee that you're getting the same batteries that Uniden was putting in their phones in 2005, go for it and pay twice the price if you have to. Otherwise, or if you're too cheap to look for quality, you may want to lower your expectations and understand that you're getting an 18-month battery.