Shenzhen Miwon Technology Co., Limited

Do you know how many times you can recharge your cell phone with a 10000mAh or a 20000mAh power bank? A very common mistake among those of us who want to know the number of charges we can get on our devices with a  power bank  is to divide the capacities of both devices, i.e.: Number of Charges = Power Bank Capacity (mAh) / Smartphone Capacity (mAh) For example, if you have a smartphone with a 2500mAh battery capacity and you want to buy a 10000mAh power bank, how many charges could you get? If we apply the above formula we get 4 full charges: Number of Charges = 10000 mAh / 2500 mAh = 4 charges THAT'S A BIG MISTAKE!! We are sorry to tell you that this calculation would be incorrect because the 10000mAh of the power bank refers to the capacity of its internal battery. A result closer to reality would be to use the actual capacity available at the output USB port of the power bank: Number of Charges = Actual Power Bank Capacity / Smartphone Capacity If ...

The capacity of your power bank determines how often you're able to charge your smartphone, tablet, or laptop. As with smartphone batteries, the capacity is expressed in in milliamps per hour. But you can't simply compare the capacity of a power bank with that of other devices. Due to energy loss during charging, about 1/3 of the capacity of a power bank is lost. Here, you can read how this works. 1/3 of the capacity is lost The technical side of it is complicated, but the rule is simple: the actual capacity of a power bank is about 2/3 of the capacity indicated. The rest disappears during power conversion or is lost during charging, especially as heat. This means power banks with a battery of 10,000mAh or 20,000mAh actually have a capacity of only 6,660mAh or 13,330mAh. This rule applies to high-quality power banks alone. Budget power banks from cheap wholesalers are even less efficient, so they lose even more energy.   Smartphones: a power bank with 10,000mAh With a 10,000mAh...

Early mobile power gives most users the impression that it is big and heavy, while today's mobile power is very small, especially the shared ones. Those who have used them will feel very light. This is a credit to the polymer lithium-ion battery. In fact, many electronics can perform better thanks to polymer lithium-ion batteries, such as TWS Bluetooth headphones and special small electronic devices. Unlike a few years ago, fewer and fewer 18650 lithium-ion batteries are used in   power banks . Are they really being phased out? Besides size and weight, what is the difference between polymer Li-ion batteries and 18650? That's what we'll discuss today.     What is an 18650? There are two important types of batteries on the market today, one is the lithium-ion battery and the other is the polymer battery. Lithium-ion batteries generally refer to aluminum-cased batteries, the electrolyte is liquid, and the outer packaging material is aluminum case or nickel-plated With the co...