The Vinsic 20,000mAh ultra-slim power bank is great for charging devices on the go. The high capacity will charge devices for days at a time before dying off. And its metallic profile is portable, weighing 537 grams for easy transporting. It features an ultra-slim body and is made of a hard aluminum alloy material that feels tough and sturdy in the hand. Users can charge their Android, iOS, Windows devices or just about any other USB-powered item.

Specs

• Capacity: 20000mAh
• USB Port: 2 x USB
• Input: 5V, 2A
• Output1: 5V 2.1A
• Output2: 5V 1A
• Input: 1x 10W (5V, 2A) Micro-USB input
• Dimensions: 6.81 inches, 4.8 inches, 0.51 inches

Design

The Vinsic power bank’s design really stands out. During my time with it, I found the design made me want to use it more frequently. Its super slim body and lightweight is very noticeable when put alongside competitors. The device is made out of strong aluminum alloy and features a smooth coating on the outside that wraps around the edges of the device. The rounded sides make it very attractable but also a bit slippery. From minor use the device has stood up very well to shuffling across tables and carrying in my backpack. No scratches, bumps or chips are visible.

You can count on this power bank withstanding any daily activities you might undergo; however, be aware that when kept in hot environments the device tends to heat up when in use. It may become hot to the touch in certain areas across the surface especially when dual charging in high temperature environments. But as far as durability goes, nothing seems to get in its way.

This power bank comes in four colors: Silver, Gold, Red and Grey.

Functionality

For the most part, the Vinsic power bank rises to the occasion. However, there are a few hiccups here and there. It features a large 20,000mAh battery capacity which is one of the largest available to date. With large capacity comes long charging time. Charging the device from 0% to full can be a bit time consuming. I found that it takes nearly twenty-four hours to fully charge the device, so I recommend putting it on before going to sleep.

All of the device’s ports lie on the top edge of the device. If you turn it over, you won’t find any ports on the underside of the device nor on the sides. The device charges via a 10W (5V, 2A) Micro-USB input. Inside the box, you get a rather short charging cable with USB 2.0 to charge via your PC. No wall adapter has been included.

One of the best things about the Vinsic power bank is that it contains two USB ports for charging rather than one. Output 1 charges at 5V and 2.1A and Output 2 supports 5V and 1A. This means you can charge two devices at the same time. Alongside the ports, Vinsic has included a touch screen panel than can be activated via a swipe of a finger to the left or right. A blue LED indicator will light up letting you know exactly how much battery you have remaining. When the capacity runs out, the LED will no longer light up. Unfortunately, the display goes off even when charging so you don’t have any indicator as to when your device has completed charging other than powering on the device. What I like is that the display shows an exact percentage to what battery capacity remains, rather than showing just bars. As one may guess, the percentage dips a lot faster when charging two devices simultaneously.

Following testing one could say that the Vinsic power bank closely resembles its listed capacity. It seems to hold up better than the majority of portable chargers (which don’t work as advertised). But I did notice that when the battery percentage gets closer to zero, it drains a bit faster. It also tends to draw extra power following the completion of 100%. For example, one might see the percentage drop a few extra points when leaving device(s) charging overnight. On the other hand, when leaving the power bank on standby, it rarely drops battery, which is always good. During testing, I was able to get about 5.5 full cycles for my LG G3 over the course of a few days.

Closing

After spending a few weeks with the Vinsic power bank, it exceeded the majority of my expectations. Even though one can experience a few hiccups here and there, it’s better than any other power bank I have used in the past. The large capacity is perfect for filling up your battery between classes, at work, or on the go. Its elegant design and lightweight make it great to bring just about anywhere and the durability can easily withstand life’s activities. For $ 49 on Amazon, it’s worth the extra penny and will make a great gift for power users time come the holiday season.

[Vinsic] [Amazon]

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