Wireless Technologies Premium Vehicle Power Charger for Nokia 6101, 6102, 3155

I bought 2 of these, and one of them stopped working after 2 months for no apparent reason. The light still comes on, but it does not charge the phone. Another annoyance is that it needs to be firmy and almost forcefully pushed into the cigarette lighter adapter. The slightest movement can loosen it, and you won't know until you find later that your phone is not charged. Like many other cell phone accessories, with this one you get what you pay for when you go with generic non-OEM products.