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Review title: Failed in less than 3 months
Product review: I had one of these units, sold under the Vector brand name, fail in use after about three months for no obvious reason. It was hooked to the battery of a truck in long-term storage in a garage, in a benign environment. It's obviously of little use if one can't rely on it to keep a battery topped-off. Out of curiosity, I broke the seal and opened the unit. 120 VAC was still getting to the printed circuit and the on-board glass fuse was good, but the LEDs no longer lit up and there was no DC output. Something in the electronics simply failed.Based on other adverse reviews here, it's obvious that the design is deficient and these units are unreliable. I still need a trickle or float charger, but the replacement unit won't be one of these.
