如果您要远离电网(power grid)进行长途旅行，您很可能需要为移动设备配备外接电池。当然，除非您打算随身携带那部(Unless)诺基亚 6310(Nokia 6310)旧手机，它可以轻松使用十天。在这篇评论中，我们来看看 Canyon 的外置电池，(Canyon)即Canyon CNE-CPB78 移动电源(Canyon CNE-CPB78 power)。产品代码(product code)中的 78代表 7800 mAh，这对于外接电池来说是一个不错的容量。在这篇评论中，让我们看看它的表现如何：
拆箱Canyon CNE -CPB78 移动电源(Canyon CNE-CPB78 power)
该装置采用黑色和橙色的盒子(orange box)，带有几个塑料透视窗。包装盒上显示了相关信息，包括Micro USB 线(Micro USB cable)的长度和设备的最大输出。
在里面，您会找到移动电源(power bank)、电缆和一本小手册，其中提供了有关操作和控制的更多信息。我们测试的单元是蓝色的，但该产品也有白色、黑色和黄色可供选择。
结构和硬件规格(Construction and hardware specifications)
该设备坚固且构造精良。它的重量为 6.35 盎司（180 克），尺寸为 3.93 x 2.46 x 0.91 英寸（100 x 62.6 x 23.3 毫米）。Canyon CNE-CPB78 移动电源(Canyon CNE-CPB78 power)具有锂聚合物电池(Lithium Polymer battery)，规定容量为 7800 mAh。给大家一个参考(reference point)，一般手机电池(phone battery)的额定容量是2200-2500毫安。该设备可以通过微型USB 电缆连接到(USB cable)电源(power source)进行充电。输入电流为 1A（安培），这意味着它不会很快充电，而一个USB 端口(USB port)的输出为 1A，另一个为 2A。
所有端口都放置在一侧并标有（IN 和 OUT(IN and OUT)）。但是，没有标注的是哪个USB 端口(USB port)可以提供 2A 电流，哪个 1A 电流。它写在手册中，但我们认为不同的端口颜色(port color)或适当的标签会是一个好主意。原则上，可以提供更高安培数的端口可以更快地为设备充电。在上图中，右边的端口是可以提供 2A 的端口。
一个不错的补充是LED 手电筒(LED flashlight)，当没有其他照明可用时，它会很有用。可以阅读或万一你在帐篷里找不到钥匙，只是不要指望它会照亮夜空(night sky)。
设备只有一个按键，用于开机（短按）和关机（长按）设备。它还控制手电筒（按两次按钮(button twice)将其打开或关闭）。可用电量在设备通电时由四个蓝色LED 指示，其中三个(LEDs)LED 点亮(LEDs)低于 75%，两个 LED 点亮低于 50%，一个 LED 点亮低于 25%。
更多信息和图片(info and pictures)，请访问产品官方页面：Canyon CNE-CPB78。
使用Canyon CNE -CPB78 移动电源(Canyon CNE-CPB78 power)
在我们的测试过程中，我们测量了充电时间以及为一两个设备充电的能力。该设备本身需要很长时间才能充满电 - 我们测量了充满电的五个小时。使用 2A USB 端口(USB port)为配备 2300 mAh 电池(mAh battery)的Sony Xperia Z1 compact充电需要 2 小时 15 分钟。Canyon CNE-CPB78 移动电源能够在需要连接到(Canyon CNE-CPB78 power)电源插座(power outlet)之前将智能手机充满两次。对于那些想知道额定容量为 7800 mAh 的移动电源(power bank)为什么只能充满(fully)2200 mAh 电池的人(mAh battery)两次，答案是“效率”。所涉及的技术效率为 70-80%，这意味着只有 70-80% 的容量可以用于实际充电，其余的则以热量的形式浪费掉。这为我们提供了 5500-6250 mAh 的可用电量。一般来说，购买外接电池时应考虑到这 70-80 % efficiency
Canyon CNE-CPB78 移动电源(Canyon CNE-CPB78 power)在连接到插座时仍然可以为连接的设备充电。在这种情况下，充电时间会更长，因为输入电流不足以以最大速度为移动电源和连接的设备充电。(power bank)同时为两台设备充电没有问题。
移动电源(power bank)并不笨重，可以轻松放入笔记本电脑包中携带。Canyon CNE-CPB78 移动电源(Canyon CNE-CPB78 power)看起来不错，可以放在咖啡店(coffee shop)的桌子上，而且足够坚固，适合实地考察。
总的来说，我们对 CNE-CPB78 移动电源感到满意，没有发现任何重大缺陷。唯一的问题是两个 USB 端口（1A 和 2A 输出）的标签不足。(Overall, we were satisfied with the CNE-CPB78 power bank and we did not find any major flaws. The only issue was the insufficient labeling of the two USB ports (1A and 2A output).)
判决
Canyon CNE-CPB78 移动电源(Canyon CNE-CPB78 power)是一款坚固的设备，外观漂亮，外接电池功能也不错。对于那些需要长时间远离电网并需要为小型移动设备供电的人来说，不错的容量（7800 mAh）、两个(power grid)USB端口、LED指示灯和手电筒使Canyon CNE-CPB78成为一个不错的选择大约 20 美元。该设备会在需要充电之前为普通智能手机或平板电脑充满两次电，因此对于那些拥有耗电设备或需要长时间旅行的人来说，您可能需要考虑容量更大的外部电池。
The Canyon CNE-CPB78 power bank review - Charge your devices on the go
If yоu're going on a long trip, away from the power grid, you will most likely need an external battery fоr your mobile devicеs. Unless, of course, yoυ plan on taking that оld Nokia 6310 phone with you, which lasts ten days easily. In this review, we take a look at an extеrnal batterу from Canyon, namely Canуon CNE-CPB78 power bank. The 78 in the product code stands for 7800 mAh, and that's a decent caрacity for an external battery. Let's see how it pеrforms, in this review:
Unboxing the Canyon CNE-CPB78 power bank
The unit comes in a black and orange box with several plastic see-through windows. Relevant information is presented on the box, including the length of the Micro USB cable and the maximum output of the unit.
Inside, you will find the power bank, the cable and a small manual which provides additional information regarding the operation and the controls. The unit we tested was blue, but the product is also available in white, black and yellow.
Construction and hardware specifications
The device is solid and well built. It has a weight of 6.35 oz (180 grams) and its dimensions are 3.93 x 2.46 x 0.91 inches (100 x 62.6 x 23.3 mm). The Canyon CNE-CPB78 power bank has a Lithium Polymer battery with a stated capacity of 7800 mAh. To give you a reference point, an average mobile phone battery is rated at 2200-2500 mAh. The device can be charged by connecting it to a power source via a micro USB cable. The input current is 1A (ampere), which means it won't charge very fast, while the output is 1A for one USB port and 2A for the other.
All the ports are placed on one side and are labeled (IN and OUT). What isn't labeled, though, is which USB port can supply 2A and which 1A of current. It is written in the manual, but we think a different port color or a proper label would have been a good idea. In principle, a port which can provide a higher amperage can charge a device faster. In the picture above, the port on the right is the one which can provide 2A.
A nice addition is the LED flashlight, which can be useful when no other lighting is available. It's ok for reading or in case you can't find your keys in the tent, just don't expect it to light the night sky.
The device only has one button, which is used to power on (short press) and power off (long press) the device. It also controls the flashlight (push the button twice to turn it on or off). The available charge is indicated by the four blue LEDs when the device is powered on, with three LEDs on for less than 75%, two for less that 50% and one for less than 25%.
For more info and pictures, visit the official page of the product: Canyon CNE-CPB78.
U sing the Canyon CNE-CPB78 power bank
During our testing, we measured the charge times and the ability to charge one or two devices. The device itself takes quite a long time to charge to full capacity - we measured an agonising five hours for a full charge. Charging a Sony Xperia Z1 compact, with a 2300 mAh battery, took 2 hours and 15 minutes on the 2A USB port. The Canyon CNE-CPB78 power bank was able to charge the smartphone fully two times before needing to be connected to a power outlet. For those of you who are wondering how come a power bank with a 7800 mAh rated capacity can only fully charge a 2200 mAh battery twice, the answer is "efficiency". The technology involved has an efficiency of 70-80%, and that means that only 70-80% of the capacity can be used for actual charging, with the rest being wasted as heat. This gives us 5500-6250 mAh available for this unit. In general, you should take this 70-80% efficiency into account when purchasing an external battery.
The Canyon CNE-CPB78 power bank can still charge connected devices while being connected to the outlet. The charging times will be much longer in this case, since the input current is not enough to charge the power bank and the connected devices at maximum speed. We had no issues charging two devices at the same time.
The power bank is not bulky and can be easily carried in a laptop bag. The Canyon CNE-CPB78 power bank looks good enough to be placed on the table of the coffee shop and solid enough for field trips.
Overall, we were satisfied with the CNE-CPB78 power bank and we did not find any major flaws. The only issue was the insufficient labeling of the two USB ports (1A and 2A output).
Verdict
The Canyon CNE-CPB78 power bank is a solid device, with a pleasant look and good features for an external battery. For those of you who need to be away from the power grid for extended periods and need to keep small mobile devices powered, the decent capacity (7800 mAh), two USB ports, LED indicators and flashlight make the Canyon CNE-CPB78 a good buy at approximately $20. The device will fully charge an average smartphone or tablet twice before needing to be recharged, so for those of you who have power-hungry devices or have to travel for longer periods, you might want to look at external batteries with a larger capacity.
