Tiny little portable chargers are nice to carry around with you in case your smartphone is running low on juice, but one of those tiny models isn’t going to do much for you if you need a power source for more than just your own device. That’s why Anker made the Powerhouse 200 Portable Rechargeable Generator, which has enough battery life to recharge your smartphone for weeks — literally! It packs a massive 57,600 mAh battery into a device that’s surprisingly compact given its battery size, and it’s perfect for camping, emergencies, and so much more. It’s normally $300, but today you can snag one on Amazon for only $199.99!

Here are the bullet points from the product page:

  • The Anker Advantage: Join the 50 million+ powered by our leading technology.
  • Universal Compatibility: Pump out the power for mobile devices, emergency equipment, computers, and small appliances.
  • Hours of Power: Charge a MacBook Pro over 5 times, a phone over 12, or even run small appliances like mini-fridges for over 4 hours.
  • Recharge Your Way: Replenish PowerHouse’s capacity via a USB-C Power Delivery car or wall charger, or an AC power adapter. Compatible with 5-22V DC output solar chargers (not included).
  • What You Get: PowerHouse 200, AC adapter, power cable, welcome guide, our worry-free 18-month warranty, and friendly customer service.

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