AnkerDirect via Amazon offers its new PowerHouse 400Wh Portable Clean DC/AC Power Inverter for $499.99. Applying coupon code ANKPower drops the final price to $399.99 shipped. That's good for $100 off the original MSRP/regular going rate and the first discount that we've seen. This is equivalent to the GoalZero Yeti 400 but it uses lithium instead of […]

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