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Accessories like smartphone battery cases and tiny portable power packs are terrific for times when you’re on the go but your iPhone or Android phone needs a quick boost. In fact, many of you out there wouldn’t even dream of leaving the house without one. But what about the times when you’re away from a wall outlet for more than just a few hours? And what about your other devices like cameras, tablets, and even laptops? Don’t worry, we’ve got just what the doctor ordered.

From now through the end of the day on Sunday, May 21, Anker is dropping the price of its PowerHouse 120,000 mAh Portable Battery all the way down to $330. It retails for $600, Amazon typically sells it for $500, and its prior all-time low sale price was $400. In other words, you’re not going to find a better price on the PowerHouse anytime soon.

Here are some key details from the product page:

  • The Anker Advantage: Join the 10 million+ powered by our leading technology.
  • Portable Power: Off-grid power supply for camping or emergency backup, capable of powering lamps, phones, laptops, TVs and even mini fridges. PowerHouse boasts triple output modes: a 12V car socket, an 110V AC outlet (for devices up to 120W) and 4 fast-charging USB ports.
  • Remarkably Compact: PowerHouse is possibly the smallest and lightest 400Wh power supply on the market. A high-density lithium-ion battery allows for a more compact build than that of lead-acid power packs.
  • Safety Guaranteed: Battery Management System (BMS) undertakes voltage control, temperature control and more advanced safety operations, ensuring complete protection for you and your devices.
  • What You Get: Anker PowerHouse (434Wh Portable Power Supply), 10ft / 304cm AC adapter, 2ft / 60cm Micro USB charging cable, welcome guide, our worry-free 18-month warranty and friendly customer service.

Anker Powerhouse, Compact 400Wh / 120000mAh Portable Outlet, Generator Alternative Rechargeable… Anker Powerhouse, Compact 400Wh / 120000mAh Portable Outlet, Generator Alternative Rechargeable… $449.99 Available from Amazon
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