Top positive review
Excellent Trimmer, Weakened by Poor Battery/Battery Circuitry
on November 26, 2013
Excellent trimmer, mediocer battery, poor battery management circuitry.
I have sensitive skin. After trying The Art of Shaving advice and many iterations of blades and products, as well as electric shavers, I gave up on close shaving and have stuck with stubble trimming. I had been using a cheap hair trimmer from a B&M store, whose battery had lost a great deal of capacity over time - I still have this trimmer, and its battery lasts for minutes after extended charging. This trimmer (QT4022) is a vast improvement over that method.
I find the adjustable guard works well for me, but I have used it in a limited capacity. Usually, I set the guard to minimum, and use the trimmer upside-down without the guard for a very close stubble trim. If I spend enough time, I can approximate a quick electric razor shave (I have one of mid tier quality to compare against). The guard has always stayed locked on the level I set it to, and when I've used it to attempt to keep a certain length of hair, it's worked.
I was initially surprised by the slower speed of the blades, but the unit works fine for me, and have given me the best stubble trim I've experienced thus far.
I believe the claims about wash-ability (I rinse the unit regularly), and the blades seem to be as sharp now (without maintenance) as when I bought the unit. I like the ergonomics of the whole thing, and the materials chosen (slick plastic front, grippy material back). I find this unit easy to clean, and I've used it regularly for some months now.
I'm guessing that the battery chemistry used here was chosen to reduce price. When the trimmer was new, the battery allowed me to go more than one trim on a single full charge (~15-20min each session for full face, front/back of the neck). Over time, however, this capacity has been reduced, due to my arguable miss-use of shaving with the trimmer plugged in to the wall.
The Battery Circuitry:
The battery management circuitry is apparently not designed to preserve the battery life for plugged-in use. My battery is now entirely inoperable - after leaving the unit plugged in for 8+ hours, the battery powers the trimmer for <1 second.
The LED lighting that shows when the unit is plugged in, charging, and charged is a nice touch. The power adapter is well designed - it doesn't extend horizontally, allowing it to fit in recessed or flush-set sockets. The adapter also feels like a quality built part, and doesn't seem to emit any hum.
I recommend this trimmer, but caution you to consider your use model - I've lost my ability to use this trimmer without a wall socket.