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700W/537Wh Portable Energy Storage - EB55

EB55 has 537 watt-hour power stored in the lithium battery pack. It has huge power for indoor use and outdoor use for of home/office daily use, outdoor enthusiasts, traveler, adventurer, campers, RV’ers, liveaboards, emergency power failure and ocean anglers. Besides its huge capacity and big load capability, it also has other features:

  • Uses highly safe iron phosphate lithium battery
  • 12 devices can be charged at the same time
  • Dual charging is possible with two AC adapters at the same time.
  • Equipped with BLUE TTI ECO mode, it does not consume extra power
  • Wireless charging allows you to charge by simply placing your smartphone or pad.
  • If you press the button on the back of the main unit, it will illuminate the surroundings as a light.
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Table of Contents


The EB55 remains first and foremost a power bank on steroids. To that, PowerOak adds what is usually offered by the competition: a pure sine-wave inverter, good conversion efficiency, a lot of battery capacity and high output power rating. Other nice-to-have features include USB Type-C power-delivery, high-current USB Type-A sockets, a regulated 12V car adapter DC output and four AC outputs to cover most typical applications.



Technical Specification

Capacity 537Wh
Rated Output Power 700W
Wireless Charging 15W
USB-C Output 100W x 1 (PD3.0)
Peak Power 1000W
Pure Sine Wave Inverter Yes
Cell Chemistry LifePO4, Up to 2500+ Charge Cycles
Dimensions 275 x 190 x 195 mm
Net Weight 6.5kg
LED Lighting Yes
Max Input Power 200W
Solar Input 12~28V, Up to 200W (MPPT)
Car Charge Supported
Operating Environment -4~104 F (-20~40 C)
Warranty 24 months



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