1. Are power banks of famous brands the best?
Famous brands power banks have no problems on the security issue, and their quality are also guaranteed. But their prices are relatively higher, generally costing hundreds of money. If you shop online, they will be cheaper, but there are still some expensive, and why? Famous brands spend a lot on brand promotion and channel construction, and of course, this part of costs is added to the price. For consumers, this part of costs for is of no value. So our goal is finding the right power bank or the right power bank manufacturer, but not the most expensive one, or we will lose the fun of online shopping.
2. What Is the Key of Choosing Portable Power Bank?
The most important parts of power bank are two parts: battery cells and the PCB board. Battery cells are batteries, and PCB board is the part managing the batteries charging and discharging. Many popular international brands sell high quality batteries, such as Sanyo, Samsung, Panasonic, and etc.
3. How do you know whether the batteries are good or not?
Currently, batteries of power banks are divided into three main types: square aluminum case, 18650 type cylindrical battery, and polymer battery. Now power banks with more than 10,000 mAh capacity generally adopt 18650 batteries.
4. How to differentiate the PCB board quality?
This is more difficult than distinguishing batteries. Only professional testing equipments can test out their quality in the factory. Now PCB boards of power banks on the market are superior if their conversion rate reaches more than 80%.
5. Why are there 10000 mAh power bank sold only at 8 dollars on the Internet? Some undesirable businessmen adopt B products, C products, or even old batteries dismantled for the power banks.
Batteries will be divided into A, B and C products in its formal production company categories. B products used on power banks have no guarantee of capacity and service life. C products cannot be used absolutely, or serious accidents will occur. B battery cells only cost one-third of A products price, and C products are sold by weight as complete waste products. That is why some people can sell power bank at such low prices. As to PCB board, imported electronic components cost about 3 dollars. Also some manufacturers dismantle components on old electronic products down and reassemble again so that the prices are much cheaper. High quality PCB boards are sold at different prices based on different sizes and components quantity. Generally PCB boards used on power banks of 10000 mAh cost 2 – 4 dollars.
www.external-battery.net is a professional and famous wholesale power bank manufacturer and exporter in China. With our own professional R&D center, factory and marketing team, we devoted ourselves to offering customer with innovative 3C products.
For more information about power bank charger visit our website.