Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Works but Case gets very hot

Works but case gets very hot.According to Tripp, unit uses about 1A of power in standby mode. Since the batteries are charged most of the time, the power is coverted to heat. The case gets very warm and since I have mine in an entertainment cabinet, it just becomes a 120 watt heating element. I have several UPS units and this is the only one which gets hot. Its a poor design to waste 120 watts of power 24/7. It only takes a couple watts to trickle charge the batteries. Tripp offered to replace it but stated the new one would have the same issue. I would not have purchased this if I knew it put out 100 plus watts of heat 24/7.