Instruct: Classify Amazon reviews into positive or negative sentiment
Query: It failed and I goofed

Xantrex Technologies XPower Pocket Mobile Power Source 175-Watt Inverter #813-0291It totally pooped out and failed after only a few months occasional use. It worked fairly well on some things like 85 watt curling iron and cellphone charger. It would recharge the laptop but struggled to power the laptop if the laptop battery was low. This despite the very low power demand rating on the laptop.Recently on a long trip it just wouldn't work any more. We looked it over, tried a different cord on it, and it wouldn't respond. Forgetting it had a one year warranty and having no room for dysfunctional stuff, we tossed it in the trash. Rats!We are shopping for a 400 or 500 watt inverter now. This one was marginal for our laptop and we need to be able to count on the inverter for the things we need it for. I wouldn't recommend this tiny device.