INTRODUCTION

   Although I’ve been using and testing portable batteries (powerbanks) for almost 10 years now I’ve never seen people as interested in them as they are today. This of course is directly tied to many reasons including the high capacity internal batteries found in most current smartphones, which in some cases go all the way up to 6000mAh (there's even a smartphone available with a 13000mAh battery), the plethora of available smartphone accessories (such as smartwatches, smart bands and wireless earphones) and of course all the latest ultraportable laptops which can get recharged on the road via USB-C connectivity. That being said not all powerbanks are created equal so after testing the rather impressive X6 model by Zendure we decided to check their latest and most successful model to date called the SuperTank.

   Zendure USA Inc. was founded in 2013 by Tom Haflinger and Bryan Liu. Our mission is to deliver top-quality consumer electronics that exceed consumer expectations using high-end materials, premiere product development partners and user-centric design. Zendure’s first product was the A-Series External Battery, which was supported by over two thousand people during a one-month Kickstarter campaign, making it one of the most successful external batteries projects out there. We strive to keep innovating, designing trustworthy products, and improving people’s lives. Take a look at how far we've come.

   The SuperTank External Battery (available in black, silver and blue colors) is not only the highest capacity model currently in the entire Zendure product line (27000mAh/99.9Wh - this is the maximum safe battery capacity allowed in flights by TSA/EASA) but also one of their most popular ones largely because of the amount of people who backed its Kickstarter campaign (4499 who pledged a total of USD553.785). Aside the very large battery capacity (achieved by using premium 3.7V lithium-ion power cells) the huge success of the SuperTank is also due to its dual USB-C inputs/outputs (100W/60W power delivery), dual USB-A outputs (15W/18W), X-charge mode (ideal for low-power devices), UPS mode (uninterrupted power supply for use with devices like network video recorders), available electrical protections (overcharge/over discharge/dual temperature/short-circuit/output overpower/output overcurrent/input overcurrent/input overvoltage/MCU reset) and of course its rather compact body (for its capacity) which is made out of polycarbonate and ABS. The X6 model which we reviewed last year is one of our all-time favourite powerbanks so let's move forward and see if the SuperTank will take its place.