1. Overview of Power Bank Shell Materials

The material of a power bank’s shell influences both its aesthetic appeal and its functional aspects like durability and heat dissipation. Understanding these differences can guide consumers in making more informed choices.

2. Plastic Shells

ABS Plastic Shells

ABS plastic is a popular choice for power bank shells because it is lightweight and affordable. It offers good impact resistance and flexibility, contributing to the power bank’s durability.

Pros:

• Lightweight
• Budget-friendly
• Durable

Cons:

• Moderate heat dissipation
• Prone to scratching

PC Plastic Shells

Polycarbonate (PC) plastic provides greater strength and impact resistance than ABS, making it a common material in premium power banks.

Pros:

• High strength
• Excellent impact resistance
• Heat-resistant

Cons:

• Higher cost

3. Metal Shells

Aluminum Alloy Shells

Aluminum alloy is another frequently used material for power bank shells, valued for its superior heat dissipation and robustness.

Pros:

• Excellent heat dissipation
• Strong and durable
• Premium appearance

Cons:

• Heavier
• More expensive

Stainless Steel Shells

Stainless steel shells are known for their durability and superior corrosion resistance compared to aluminum alloy.

Pros:

• Extremely durable
• Corrosion-resistant
• High-end look

Cons:

• Heavier
• Highest cost

4. Other Materials

Carbon Fiber Shells

Carbon fiber is an emerging material for power bank shells, offering a combination of lightweight and high strength, making it suitable for premium products.

Pros:

• Extremely lightweight
• High strength
• Durable

Cons:

• Very expensive

Wooden Shells

Wooden shells, although uncommon, appeal to users who value unique textures and eco-friendliness.

Pros:

• Distinctive appearance
• Environmentally friendly

Cons:

• Vulnerable to moisture damage
• Higher cost

5. Conclusion

Choosing the right shell material for your power bank requires balancing factors like cost, weight, heat dissipation, and durability. Plastic shells are ideal for those looking for lightweight and cost-effective options, while metal shells are suited for users prioritizing heat dissipation and longevity. For those seeking a unique, premium experience, materials like carbon fiber and wood offer appealing alternatives.

By understanding the characteristics and advantages of different power bank shell materials, you can make a more informed decision to enhance your user experience.

We hope this article has been helpful. If you have any questions or would like to know more about power banks, please leave a comment below, and we’ll respond as soon as possible.

1. Overview of Battery Cell Materials

Battery cells play a pivotal role in the functionality and dependability of power banks. Different materials are used in these cells, each bringing unique attributes to the table.

2. Lithium-Ion (Li-ion) Battery Cells

What are Lithium-Ion Battery Cells?

Lithium-ion cells are widely used in power banks, known for their high energy density and durability.

Composition:

• Cathode: Typically made from materials like lithium cobalt oxide, lithium manganese oxide, or lithium nickel manganese cobalt oxide.
• Anode: Generally composed of graphite.
• Electrolyte: Consists of lithium salts in organic solvents.

Common Models:

• 18650: A standard size (18mm diameter, 65mm length) offering a good balance between capacity and output.
• 21700: Larger than the 18650 (21mm diameter, 70mm length), providing higher capacity and better efficiency.

Pros:

• High energy density
• Long lifespan
• Low self-discharge

Cons:

• Higher cost
• Safety concerns if mishandled

Applications in Power Banks:

Commonly used in a variety of power banks due to their balance of performance and cost.

3. Lithium Polymer (Li-Po) Battery Cells

What are Lithium Polymer Battery Cells?

Li-Po cells utilize a polymer electrolyte, offering flexibility in form.

Composition:

• Cathode/Anode: Similar to lithium-ion cells.
• Electrolyte: Polymer-based.

Common Models:

• 606090: A rectangular cell (60mm x 60mm x 90mm) known for its high capacity and thin design.
• 1260100: Larger and more capacious, with dimensions of 12mm x 60mm x 100mm, ideal for slim power banks.

Pros:

• Lightweight and versatile
• Safer than Li-ion
• Customizable shapes

Cons:

• More expensive
• Slightly lower energy density

Applications in Power Banks:

Favored for thin, lightweight models.

4. Lithium Iron Phosphate (LiFePO4) Battery Cells

What are Lithium Iron Phosphate Battery Cells?

Known for thermal stability and safety, LiFePO4 cells are reliable and long-lasting.

Composition:

• Cathode: Lithium iron phosphate.
• Anode: Graphite.
• Electrolyte: Similar to other lithium-based batteries.

Common Models:

• 26650: A cell with a 26mm diameter and 65mm length, offering high capacity and stable output.
• 32700: Larger (32mm diameter, 70mm length), with greater capacity and durability.

Pros:

• Excellent safety and thermal stability
• Long cycle life
• Good high-temperature performance

Cons:

• Lower energy density
• More expensive

Applications in Power Banks:

Ideal for high-capacity, heavy-duty power banks.

5. Emerging Battery Technologies

Graphene Battery Cells

Graphene batteries offer high conductivity and rapid charging potential.

Pros:

• Superior conductivity
• Fast charging
• High durability

Cons:

• Still under development
• High production costs

Solid-State Battery Cells

These replace liquid electrolytes with solid ones, enhancing energy density and safety.

Pros:

• Higher energy density
• Improved safety
• Longer lifespan

Cons:

• Technological challenges
• High initial costs

Zinc-Air Battery Cells

Using air as a reactant, these batteries provide high energy density at a lower cost.

Pros:

• High energy density
• Cost-effective
• Environmentally friendly

Cons:

• Limited recharging
• Complex air management

6. Conclusion

The type of battery cell material and model in a power bank greatly affects its performance, safety, and price. Lithium-ion and lithium polymer cells are most common, each with their own benefits. Models like 18650 and 21700 for Li-ion, or 606090 and 1260100 for Li-Po, offer distinct advantages depending on usage. Emerging technologies like graphene and solid-state batteries promise even better performance in the future.

Understanding these battery cell materials and models will help you choose the power bank that best suits your needs.

If you found this guide useful or have any questions, feel free to reach out in the comments below. We’re here to help!

Automatic Solder Paste Printer: Setting the Stage for Excellence

Leading Bluetimes’ SMT assembly line is the automatic solder paste printer. This high-precision machine applies solder paste to PCB pads with exceptional uniformity and accuracy, laying the groundwork for secure, dependable connections between electronic components.

Solder Paste Inspection (SPI) Machine: Ensuring Quality at Every Step

Following the printing process, the SPI machine carefully checks the thickness, consistency, and placement of the solder paste. This critical quality control measure guarantees that each detail meets the highest standards, preventing potential issues that could affect the final product.

Pick & Place Machine: Precision in Every Placement

At the core of Bluetimes’ SMT assembly line is the pick-and-place machine. Operating with incredible speed and precision, it selects tiny electronic components from feeders and places them perfectly onto PCBs. This vital process ensures the circuitry is precisely arranged, preparing it for the next phase.

Reflow Soldering: Creating Strong, Reliable Bonds

Reflow soldering is the process that unifies the carefully positioned components into a cohesive, functioning unit. By meticulously controlling the temperature, the reflow oven melts the solder paste, enabling the components to bond securely to the PCB. As the connections cool, they harden into a robust foundation for the electronic device.

Automated Optical Inspection (AOI): Finalizing Quality Assurance

Finally, the AOI system conducts an in-depth scan of the assembled PCBs using high-resolution cameras and advanced image processing technology. This comprehensive inspection detects any defects, such as missing or misaligned components, polarity errors, or inadequate soldering, ensuring the highest level of quality in the final product.

The SMT Process at UUK

1. Solder Paste Application: The first step in the SMT process is the application of solder paste onto the PCB. This paste acts as an adhesive, ensuring that components stay in place during the soldering process. At UUK, we use high-precision stencil printers to apply the solder paste, guaranteeing a consistent and even coating.
2. Component Placement: Once the solder paste is applied, the PCB moves to the pick-and-place machines. These machines are equipped with advanced vision systems that accurately place tiny electronic components onto the board at high speed. UUK’s SMT workshop is equipped with the latest pick-and-place technology, ensuring that each component is placed with pinpoint accuracy.
3. Reflow Soldering: After the components are placed, the PCB passes through a reflow oven. This oven heats the board to a specific temperature, causing the solder paste to melt and form a strong, conductive bond between the components and the PCB. Our reflow ovens are carefully calibrated to ensure optimal soldering, preventing issues like cold solder joints or component damage.
4. Inspection and Quality Control: Quality is our top priority at UUK. After soldering, each PCB undergoes rigorous inspection using Automated Optical Inspection (AOI) systems. These systems check for any defects, such as misaligned components, soldering issues, or missing parts. If any issues are detected, the PCB is flagged for rework or rejection, ensuring that only the highest quality boards make it to the next stage of production.
5. Testing and Final Assembly: Once the PCB passes inspection, it undergoes a series of functional tests to ensure that all components are working correctly. After passing all tests, the PCBs are integrated into the final power bank assembly, where they undergo further testing and quality checks.

Why UUK’s SMT Workshop Stands Out

• Advanced Equipment: UUK invests in the latest SMT equipment to ensure precision and efficiency in every step of the production process.
• Expert Team: Our highly skilled engineers and technicians bring years of experience in SMT manufacturing, ensuring that every power bank meets our rigorous standards.
• Commitment to Quality: Every PCB produced in our SMT workshop undergoes multiple inspections and tests, reflecting our commitment to delivering only the best products to our customers.

By leveraging advanced SMT technology and stringent quality control measures, UUK ensures that each power bank we produce is reliable, efficient, and built to last. This dedication to excellence is what makes UUK a trusted name in the power bank industry.

The Key Life Test is used to evaluate the durability of buttons on a power bank. This test simulates repeated pressing of the buttons to ensure they can withstand a specified number of cycles without failure. The testing process involves a mechanical apparatus that repeatedly presses the buttons at a controlled force and speed until the set cycle count is reached. The result helps determine the longevity of the buttons under normal use conditions.

Overcharge Test 

The Overcharge Test assesses the safety of the battery cell when charged beyond its maximum voltage. This test involves charging the battery cell to a voltage higher than its rated capacity to monitor its behavior under extreme conditions. The primary goal is to ensure that the battery does not overheat, swell, or catch fire. This test is crucial for ensuring the safety of the power bank during accidental overcharging scenarios.

Overdischarge Test 

The Overdischarge Test checks the battery cell’s performance when discharged beyond its minimum voltage limit. The battery is intentionally discharged to a voltage lower than the manufacturer’s specified cutoff to observe its reaction. The test ensures that the battery can handle deep discharges without causing damage or reducing its lifespan, thus safeguarding the power bank’s overall performance.

Short-Circuit Test 

The Short-Circuit Test evaluates the battery cell’s response to a direct short circuit. During this test, the battery is deliberately short-circuited by connecting its positive and negative terminals with minimal resistance. The test monitors the cell for any hazardous reactions such as overheating, fire, or explosion. This test is critical for ensuring that the power bank remains safe even in the event of a short circuit.

Capacity Sorting Test 

The Capacity Sorting Test measures and categorizes battery cells based on their capacity. Each cell is charged and discharged under controlled conditions, and its capacity is measured to determine its suitability for use in power banks. Cells with similar capacities are grouped together to ensure consistent performance in the final product. This test is essential for maintaining quality control and ensuring that the power bank delivers the advertised capacity.

High and Low Temperature Test

The High and Low Temperature Test examines the power bank’s performance across a range of extreme temperatures. The power bank is subjected to both high and low temperatures to assess its functionality, charging efficiency, and safety in different environmental conditions. This test ensures that the power bank operates reliably whether it’s used in very hot or cold climates.

Alcohol Wear Test

The Alcohol Wear Test evaluates the resistance of the power bank’s surface to wear caused by alcohol-based cleaning agents. A cloth soaked in alcohol is rubbed against the surface of the power bank to simulate cleaning. The test checks for any discoloration, damage, or degradation of the surface material. This test is important for ensuring that the power bank maintains its appearance and durability even after frequent cleaning.

Pull Test 

The Pull Test assesses the strength of the power bank’s connectors, such as USB ports and attached cables. A tensile force is applied to these connectors to ensure they can withstand a certain amount of pull without becoming detached or damaged. This test is crucial for ensuring the durability and reliability of the power bank’s external connections during regular use.

Salt Spray Test 

The Salt Spray Test evaluates the corrosion resistance of the power bank, especially its metallic components. The power bank is exposed to a salt-laden mist in a controlled chamber for a specified duration. After the test, the power bank is inspected for any signs of corrosion or rust. This test is important for ensuring the longevity of the power bank in humid or coastal environments.

Vibration Test

The Vibration Test assesses the power bank’s ability to withstand vibrations during transportation or daily use. The power bank is placed on a vibrating platform that simulates different levels of vibration over a set period. This test ensures that the internal components of the power bank remain secure and functional despite exposure to vibrations.

Flammability Test 

The Flammability Test determines the power bank’s resistance to catching fire when exposed to high temperatures. During this test, parts of the power bank are exposed to a flame to assess how quickly they ignite and how the fire spreads. The goal is to ensure that the power bank’s materials are flame-retardant, reducing the risk of fire in case of a malfunction.

Advantage of Manufacturing → Factory direct, quality assurance, best price

International Sourcing → Strict quality inspection for raw-material incoming

OEM/ODM Advantage → UUK.served over 1,000 clients to customize products.

Service Network Advantage → Professional sales team with 24 hours quick response.

Equipment Advantages → International standards of production equipment to ensure quality

Certified Advantages → ISO9001,BSCI, CE, FCC, EMC, ROHS etc.

Enviromental Advantages → Products through Rohs test, 100% meet with EU standards.

Quality Advantages → 100% inspection before delivery to ensure that each factory’s products

Cost Advantages → Direct production part and material purchasing.

Service Advantage → Sample only 1days, lead time within 3days, no MOQ.

Price Advantage → Commitment of UUK.: the same quality with lowest price

The recently launched iPhone 14 Pro series introduced the “Dynamic Island,” a feature packed with interactive details. According to DSCC analyst Ross Young, this feature is expected to be included in all iPhone 15 models next year.

Display Supply Chain Consultants (DSCC) is a renowned supply chain consulting firm, and Ross Young’s predictions, based on supply chain information, are highly credible. However, due to supplier capacity constraints, the standard versions will still lack LTPO panels and ProMotion technology, meaning the iPhone 15 and iPhone 15 Plus won’t support high refresh rates or always-on display functions.

iPhone 14 Series 5G Network Speed Improved by 38%: Better Signal

Apple’s iPhone 14 series has launched, and early users have noticed significant improvements in signal and network speed. The iPhone 14 and iPhone 14 Pro boast a 38% increase in 5G network speed and lower latency. This improvement is attributed to the upgraded Snapdragon X65 5G baseband chip in the iPhone 14 Pro series, pushing 5G speeds to 10Gbps.

Ming-Chi Kuo: iPhone 14 Pro Series Shipments to Reach 65% in H2 2022

Tianfeng International analyst Ming-Chi Kuo recently forecasted trends for Apple, the iPhone 14, and its supply chain. He predicts that the iPhone 14 Pro series will account for 60-65% of total iPhone 14 shipments in 2022, up from an earlier estimate of 55-60%. The iPhone 14 Pro Max alone is expected to make up 30-35% of these shipments, making it the most popular model in the lineup.

If iPhone shipments remain strong past November, Apple may issue a positive outlook for Q4 during its earnings call in late October. This could potentially boost the revenue and profits of key iPhone 14 Pro series suppliers.

iOS 16 Switches Sound Effect Exclusive to iPhone 14/Pro Series

The latest iPhone 14/Pro series has introduced a new accessibility feature in iOS 16 that plays a sound when the phone is turned on or off, similar to the Mac’s iconic startup sound. This feature can be enabled or disabled in the settings.

iOS 16 Update Coming Next Week

Apple plans to address the frequent clipboard confirmation pop-ups in iOS 16, which have been widely criticized by users. According to senior manager Ron Huang, this issue will be tracked and fixed in the upcoming update.

Recommended Power Bank for iPhone 14

While Apple’s MagSafe magnetic charging technology offers a convenient wireless charging experience, its high price can be a deterrent for many users.

UUKONE, a prominent smart charging brand, offers a budget-friendly alternative with its MagSafe portable wireless charger for iPhone 12, 13, and the new iPhone 14 series. Priced lower than Apple’s original, this magnetic battery charger comes in four colors: white, black, pink, and soon, orange. It delivers excellent wired and wireless charging performance for everyday use.

UUKONE Magnetic Wireless Power Bank 10000mAh

This portable charger for iPhone features a unique magnetic design that allows for seamless charging and strong magnetic adsorption. Its compact design ensures it doesn’t block the camera, enabling wireless charging while using the phone for photos or gameplay. For those unsure which MagSafe portable wireless charger to buy, the UUKONE portable charger for iPhone is a reliable choice.

Samsung has introduced a self-service repair program, allowing users to purchase phone components and repair their devices themselves. Partnering with iFixit, Samsung supplies components and tools for the Galaxy S21, Galaxy S20 series phones, and Galaxy Tab S7+ tablets. These components and tools will also be available at Samsung’s 837 retail experience stores and standard Samsung retail and service locations.

Samsung’s official website lists available accessories, including screens, charging ports, and back covers. To promote environmental sustainability, users are encouraged to send replaced old screens back to the official office. Additionally, Samsung offers free online repair guides, complete with step-by-step instructions and detailed images to help users with repairs.

India Accuses Vivo of Tax Evasion of Rs 221 Crore

In early July, India’s financial crime-fighting agency raided Vivo’s offices and blocked 119 bank accounts related to Vivo’s India business and its affiliates, which were unfrozen a week later. The Indian Tax Intelligence Service claimed to have discovered tax evasion by Vivo, involving 22.1 billion Indian rupees (about $278 million), and issued a notice of reasons to Vivo India. Vivo has not yet responded to the allegation.

Apple Arcade’s First Games Removed from Shelves

Apple announced the removal of some games from Apple Arcade, adding a “Leaving Arcade Soon” section in the Arcade area of the App Store. The first batch of 15 games to be removed includes titles like Spelldrifter, Projection: First Light, and Lifeslide. These games are no longer searchable in the App Store. Users who previously downloaded the games can continue to play them for “at least two weeks” before receiving a “No Longer Available” message.

Apple Watch Series 7 Edition Sold Out Worldwide

Ahead of the expected release of the Apple Watch Series 8 in September, Apple Watch Edition models are sold out in many places around the world. Several Apple Watch Series 7 models with titanium casings are listed as “currently unavailable” in Apple’s online store in the U.S., Canada, the U.K., and select other countries. Some 41mm models of the Apple Watch Edition on Apple’s official China website are also no longer available for purchase.

The Apple Watch Series 8 is rumored to feature a fever detection capability and will be equipped with an S8 chip, maintaining the same processor specifications as the S7 chip in the Series 7.

AppleCare+ with Theft and Loss Coverage Now Available in More Countries

Apple has expanded its AppleCare+ service, which includes accidental damage insurance, to include theft and loss coverage in France, Italy, and Spain. Previously available in the U.S., Australia, Germany, Japan, and the U.K., this service allows users to get official after-sales repair or replacement for a reduced fee in case of accidental damage.

For instance, purchasing this service for an iPhone 13 costs $219 for two years, and if the phone is stolen or lost, users only need to pay an additional $149 to get a replacement. This service covers two incidents of theft or loss every 12 months.

Power Bank for iPhone and Apple Watch

Power banks have become essential for on-the-go charging. Traditional power banks can charge an Apple Watch using a special charging cable, but carrying such a cable can be cumbersome.

UUKONE offers a portable charger that can charge both an iPhone and an Apple Watch simultaneously, solving this problem efficiently. This power bank includes a built-in Apple charging cable and can wirelessly charge the Apple Watch. It also supports charging other devices simultaneously with its three-output charging function. The 9000mAh high-density battery can charge the Apple Watch Series 6 about 23 times and the iPhone 12 mini about 2.7 times (note: it is not suitable for the Apple Watch Series 7).

The integrated design is compact and convenient, eliminating the hassle of carrying multiple cables. This portable charger for iPhone and Apple Watch can easily fit into pockets and bags, making it an ideal travel companion. Many users rely on their Apple Watch 24/7 for tracking exercise during the day and sleep quality at night. Therefore, having a charger that can handle both devices is crucial. Additionally, the UUKONE portable charger comes with a 180-day warranty, ensuring peace of mind with options for return or repair if needed.

Here are some summarized tips and precautions for charging and daily use of new Apple models such as the iPhone 14 and iPhone 13:

1. How long does it take to charge a new iPhone for the first time?

   After buying a new iPhone 13 or iPhone 14, many users might think it’s necessary to use all the battery and then charge it for 12 hours or overnight. However, modern iPhones use lithium-ion batteries, which do not require such treatment. It’s perfectly fine to use the phone normally from the start and charge it when the battery is above 20%.

2. Do you need to recharge the battery after running out of power?

   With the introduction of fast charging technology, it’s no longer necessary to wait until the battery is completely drained before recharging. Apple’s lithium-ion batteries work in charge cycles, and it’s perfectly fine to charge the battery whenever needed. The iPhone’s charging cycle is rated for 500 cycles, but actual battery wear depends on various factors. Charging the battery when it drops to around 20% is a good practice.

3. How to improve battery performance and prolong battery life?

• Update to the latest iOS system: Apple advises users to keep their devices updated with the latest iOS version, as updates often include advanced energy-saving technologies that can help protect the battery.
• Turn on low power mode: This mode can extend battery life when your iPhone’s battery is low. The iPhone will notify you when the battery reaches 20% and 10%, and you can choose to enable this mode, which reduces screen brightness, optimizes performance, and minimizes system animations.
• View battery usage information: You can check battery usage details by going to [Settings] – [Battery] to see the power consumption of all apps.
• Keep away from extreme temperature environments: The ideal operating temperature for Apple devices is between 16°C and 22°C. High temperatures, especially above 35°C, can cause permanent damage to the battery. If your iPhone gets hot while charging, it’s advisable to stop using it until it cools down.
• Remove the case when charging: Using a case can cause the device to retain heat, which can affect battery capacity. It’s recommended to remove the case if the device gets hot during charging.
• Choose a safe and secure power bank: When selecting a power bank, ensure it has safety features such as overcurrent protection, short circuit protection, and overvoltage protection to prevent damage to your device.

If you have any additional tips for maintaining battery performance, please share them in the comments!