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A back cover power bank is a battery charger designed to be slim and go on the back of a smartphone like a cover. They charge the smartphone while protecting it. There are several different types of these back cover power banks available, depending on the smartphone model and needs.
Integrated battery cases
These consist of an external casing that fits around the smartphone and houses a rechargeable battery within the armor. They connect directly to the smartphone's charging port. Integrated battery cases charge smartphones without needing extra cords. They can charge them entirely or partially while protecting the devices from scratches and dings. However, users cannot remove the batteries within these encasements.
Modular power banks
Modular power banks come in interchangeable modules. Each module has a portable battery pack, and they allow users to mix and match depending on need. For example, a heavy-duty battery provides added battery storage through multiple modules that can be attached together. They also provide versatility through other features such as a stand, built-in flashlight, or wireless charging capabilities.
Slide-on power packs
Slide-on power packs have a slim design. They slide easily onto smartphones and provide a quick way to add extra battery life. Their lightweight and low-profile designs make them very portable. However, they work better with devices that support charging via their side ports as they mainly connect through this channel. Devices with side port compatibility include some models of the iPhone XR and XS Max. Overall, the ease of attachment combined with extra battery life makes slide-on power packs convenient options.
Fuel cell chargers
These innovative mobile chargers use small hydrogen fuel cells to produce electricity. The hydrogen gas inside these fuel cells reacts chemically, giving off electric power that can recharge smartphones. What makes them stand out is their long-lasting ability. Unlike lithium-ion batteries that need frequent recharges, a single refueling of hydrogen allows these fuel cells to provide energy for days.
The power bank for OPPO back cover is designed to make charging simple for users. The following features and functions are available:
Wireless Charging
The Qi-standard back cover power banks have wireless charging capabilities. As long as the phone's back cover aligns with the Qi coil, it will receive a charge. There are no cables to find or connect when utilizing this convenience charging feature.
Rapid Charging
The phones with compatible back cover power banks will automatically receive optimized charging. They are made to offer fast charging through wireless means. Many models are certified under the PMA (Power Matters Alliance) or A4WP (Alliance for Wireless Power) for rapid charging technologies like Quick Charge 2.0 or higher.
Multiple Output Options
The power bank back cover can come with USB ports. Users who own devices that don't fit into the back cover's charging coil can charge them via cable. The output options allow charging devices like cameras and wireless earphones.
Multi-device Charging
Some models of back cover power banks are made to cater to multiple devices. They have an expanded design to fit around the phones so they can connect to IoT devices, smartwatches, and other Qi-enabled mobile devices at the same time.
LED Indicator
These power banks have built-in indicator lights. Normally, users will find color and light patterns set out in the user manual. The lights provide information on the charging status, battery capacity level, and the mobile bank's overall health.
Detachable Design
Detachable back cover designs allow users with multiple phones to use one power bank cover. A model with snap-on attachments will enable users to easily add or remove the charging cover as needed.
Back cover power banks can come in handy in a variety of situations. They charge devices directly, which is very convenient. They can do this at work, where a busy office may not have enough charging ports for all its employees. The power bank provides a quick solution by charging a smartphone from the back of the phone while attending meetings or working on the internet.
Besides this, the power bank offers a convenient way to charge devices while traveling. Whether using trains, planes, or cars, it can be an efficient travel companion. Long, busy days may make it difficult to find time to sit and wait for smartphones to charge fully. But with a back cover power bank, users can easily charge their devices on the go and stay connected.
Some may host parties or family gatherings. In such cases, a back cover power bank serves as a fun and practical way to ensure all guests' devices are charged. Instead of searching for sockets and power strips to charge phones, it allows users to keep phones charged and has no cords or cables lying around.
Power banks with battery-saving features can come in handy on days when power outages or shortages are common. They can be used to charge lights, radios, and cell phones until the situation improves. Such power banks are particularly useful during emergencies or natural disasters when staying up to date with information and communication is vital.
A back cover power bank is important when planning outdoor events like camping, hiking, or beach days. It provides a convenient way to keep smartphones and other devices charged without carrying around extra cables or adapters. It is a great accessory for outdoor enthusiasts. Not only does it help keep the user’s devices charged, but its compact, all-in-one design also reduces the amount of gear carried.
Gamers will also find the power bank useful for extended gaming sessions or tournaments. Gaming sessions can easily drain a phone's battery. But with a back cover power bank, gamers can avoid battery life anxiety and focus on enjoying their games.
Whether for personal use or as a thoughtful gift, this power bank is a creative and useful present that anyone will appreciate. It is especially great for tech lovers or anyone who values practical yet stylish accessories.
Capacity:
Considering the capacity of a back cover power bank before purchasing is important. The capacity is expressed in mAh (which means milliampere-hour). The capacity shows how much power the battery can hold. The higher the mAh count, the higher the power bank's capacity to charge the device. Also, keep in mind that the smartphone's battery capacity plus 20% should be used to calculate the required power bank capacity. For example, if the phone's battery capacity is 4000mAh, add 20% which equals 4800mAh. Then, use this number to determine the power bank's mAh capacity. In this case, a power bank with 5000mAh will suffice. This means that the 5000mAh power bank will be able to fully charge the phone.
Charging Speed:
Fast charging back cover power banks are popular among users because of their ability to provide devices with increased charging power. This reduced the amount of time required for devices to become fully charged.
PC and Battery Certification:
It is crucial to get a power bank that complies with the necessary standards and laws to guarantee that it is safe and suitable for use. Because of their subpar performance and dangerous safety features, non-certified power banks are typically less reliable. These power banks, however, may not comply with the necessary standards or laws. On the other hand, certified power banks are more reliable and less likely to have any problems. This is mostly because they abide by laws and requirements that are specific to the regional standards. They have undergone testing to make sure they are safe and suit the requisite standards. Additionally, certified power banks give information about the appropriate standards and laws they comply with.
Number of Ports:
Customers need to think about how many ports their gadgets will require before buying a back cover power bank.
Design and Material:
The design and material of back cover power banks have a big impact on their portability and durability. Additionally, choosing a power bank with an appealing design can complement your style. Select a back cover power bank that is lightweight and made with durable materials like aluminum or PC to ensure that it will withstand daily use.
Warranty:
A power bank warranty provides important protection against potential flaws and offers peace of mind. The manufacturer's warranty on back cover power banks often covers hardware defects. This guarantees that the warranty will be honored if the power bank has any potential flaws and is returned or repaired.
Q: How long can the power bank back cover hold a charge?
A: The length of time a back cover power bank can hold a charge depends on its capacity. If it has a capacity of 2500mAh, for example, it may be able to hold the same amount of charge as a phone that also has 2500mAh. This means it could store enough power to charge a phone with that capacity, or keep it running for about one more extra full day before recharging the back cover power bank itself. The actual performance will vary based on individual phone models and battery sizes, but this gives a rough estimate of how a power bank of that size would function.
Q: Can someone use their phone while it's charging with a back power bank cover?
A: It is possible to use a phone while it's charging with a back power bank cover, but only with some covers. Some allow users to still plug in and use the phone normally even though it's charging from the inside. However, other power bank back covers may not allow normal phone usage. They require the user to open up and attach a charging cable from the outside of the cover to the phone first. In those cases, the user wouldn't be able to use the phone at the same time it's charging from the cable. So, whether the user can use their phone while it's charging inside a power bank back cover depends on which one is being used. Some let that happen, but others mean the user has to charge from a cable instead.
Q: Is it possible to use a phone while it's charging with a back power bank cover?
A: It is possible to use a phone while it's charging with a back power bank cover, but only with some covers. Some allow users to still plug in and use the phone normally even though it's charging from the inside. However, other power bank back covers may not allow normal phone usage. They require the user to open up and attach a charging cable from the outside of the cover to the phone first. In those cases, the user wouldn't be able to use the phone at the same time it's charging from the cable. So, whether the user can use their phone while it's charging inside a power bank back cover depends on which one is being used. Some let that happen, but others mean the user has to charge from a cable instead.
