Knowledge Base / Q&A - Wall/Worldwide/Car Charger
Are dvalo charger accessories compatible with Apple devices like phones, tablets, and laptops?
A>Yes, they are. Different models may have slight functional differences. Please contact us via WhatsApp or email to confirm your specific device model.
Are dvalo USB Type-C chargers compatible with HP, DELL, ASUS, ACER, and LENOVO laptops that charge via USB Type-C?
A>Yes, they are. You can refer to the dvalo DVL-230 and dvalo DVL-245 models. These products are certified to international safety standards & approved by SIRIM as well as certified by UL, it comes with multi-plug adapters for convenient travel. They also provide an additional USB port for charging phones or tablets.
Are dvalo charger accessories also compatible with Android phones?
A>They support most device models. Different models may have slight functional differences, as there are many different phone models from various brands. Please contact us via WhatsApp or email to confirm your specific device model.
Can dvalo chargers be used with Samsung, LG, Asus, Google Pixel, and Nokia phones?
A>They support most device models. Different models may have slight functional differences, as there are many different phone models. Please contact us via WhatsApp or email to confirm your specific device model.
Can dvalo chargers be used with Huawei, Honor, Vivo, Oppo, and Xiaomi phones?
A>They support most device models. Different models may have slight functional differences, as there are many different phone models. Please contact us via WhatsApp or email to confirm your specific device model.
Why are cheap chargers that cut corners still being used to charge devices without any apparent problems?
A>This is because they still retain the basic charging function, but it doesn’t mean they are safe. As long as they can convert AC power into the voltage required by phones and devices, that’s enough. The problems they cause might not appear immediately or be easily noticeable, unless there’s an obvious abnormality, by which time the potential serious consequences might be too late. In fact, such products generate strong electromagnetic waves during charging, which can affect the functions of the phone, and even pose health risks to human.
Is it necessary to use expensive original brand charger accessories to ensure safety?
A>Most phone brands, including Apple, outsource the production of their original charger accessories to third-party manufacturers. dvalo products are also manufactured by professional OEMs who produce for many international brands. In terms of quality and safety, dvalo products meet the equivalent international electrical safety standards. In some cases, dvalo products even exceed these standards, such as in the use of batteries, conductors, multi-plug adapters for travel, and durable cable design.
What are the different types of chargers for mobile phones and tablets?
A>Generally, they can be categorized into wall chargers, travel chargers, car chargers, and Powerbanks. We also offer USB dongle Ucharger TX3000A from Korea for older laptop/desktop computers without USB Type-C fast charging. This dongle can charge your phone or tablet safely at 10W via a traditional USB-A port, significantly 4x faster than the 2.5W offered by legacy USB-A ports. Use of high quality charging cable is recommended.
What are the consequences of using low-quality or mislabeled chargers?
A>In terms of safety, they can lead to short circuits, overheating, electric shock, and explosions. They may also emit harmful electromagnetic radiation. In terms of performance, they can cause intermittent charging, affecting the lifespan of internal components and damaging the battery. Charging speeds may be slower than advertised.
Using a Powerbank with a low-voltage 5V USB port to charge devices like phones versus a 220-240V wall charger, and it won’t cause electric shock ?
A>While the voltage of a 5V USB port is lower, theoretically, as long as the current exceeds 1A, it can lead to painful or fatal consequences, and even death. The lethal current in amperes can vary from person to person and is affected by many factors. So, the key to preventing these risks is to address the safety issues of charging accessories that are causing the root of the problem.
How can we ensure the safety of our devices while charging?
A>Apart from having high-quality chargers or powerbanks, you also need high-quality charging cables. Both are equally important. While there are indeed potential risks associated with cheap charging products, there’s no need to panic excessively. As long as we maintain a high level of safety awareness, choose products from reliable manufacturers or sellers, follow the correct usage instructions, and pay attention to safety guidelines, we can minimize risks. Additionally, it’s important to avoid using your phone while it’s charging, such as surfing the internet or making calls.
Should I unplug my charger when not in use?
A>While the energy consumption is minimal, it’s recommended to unplug chargers when not in use, especially for low-quality products. Despite dvalo chargers have built-in safety features, but it’s always a good practice.
What is a Power IC?
A>Power IC is the core component in a phone charger. There are cheap low-end and more expensive mid-to-high-end products. Its job is to manage and convert the input power. Its quality directly affects the charger’s performance and safety. If a charger uses an authenticity Power IC, it can provide a safer, more stable, more compatible, and more efficient charging experience, while also better protecting the phone and battery. Cheap, low-quality Power ICs may cause the phone to be damaged or even cause a fire due to short circuits. They may also be unable to accurately judge the battery’s power, leading to overcharging or over-discharging and damaging the battery. From the above, we can see its importance and impact.
Do all USB Type-C chargers and cables support fast charging ?
A>No. USB Type-C is just a versatile connector, it doesn’t inherently, guarantee fast charging.
What is fast charging?
A>Fast charging refers to charging electronic devices at a rate higher than the standard 5V/1A (5W). 5V/2A (10W) and 5V/2.4A (12W) are considered advanced charging speeds. The 5V/2A 10W standard was once considered the minimum for fast charging, known as QC. Today, different manufacturers use various fast charging protocols, leading to varying charging speeds for different phones.
What are the different types of fast charging?
A>Common types include USB PD, QC, AFC, FCP, SCP, PE, VOOC, SuperVOOC, FlashCharge, and TurboCharge. Due to intense competition, manufacturers are constantly introducing faster charging technologies, some of which are proprietary. PD has become the industry standard due to its versatility, reliability, and compatibility.
What is “Super Fast Charging”?
A>It’s just a marketing gimmick. There’s no actual fast charging technology behind it. Don’t be fooled.
Why are there so many fast-charging chargers, cables, and high-capacity Power Banks on the market?
A>This is largely driven by the intense competition among smartphone and powerbank manufacturers, who are constantly releasing new phones with fast-charging capabilities. Many consumers lack a deep understanding of the technologies, design, materials, manufacturing processes, safety standards, and battery technologies involved in smartphones and consumer electronics. Without this knowledge, it’s natural for consumers to assume that faster charging is always better and that larger capacities are always preferable. However, many of these products come with hidden risks, especially in terms of safety. Given this consumer demand for fast-charging products, retailers naturally stock these items without needing to provide extensive product explanations.
Is it necessary to buy faster and higher-powered fast-charging chargers?
A>While fast charging is convenient, it’s important to understand the potential risks. Higher currents and voltages increase the risk of accidents, and the quality of the charger, Powerbank, and cable becomes crucial. It’s not necessary for everyone to have the fastest charging accessories. Consider your specific needs and the capabilities of your device. In fact, using slower charging speeds can help prolong the lifespan of your device’s battery.
What are some common misconceptions about fast charging with USB Type-C ports?
A>While USB Type-C is a versatile connector, the actual charging speed depends on the device, the charger, and the cable. The device, charger, and cable must all support fast charging technology to achieve high speeds.
What is QC?
A>QC is a fast-charging technology developed by Qualcomm.
Why is PD fast charging more popular?
A>The USB Power Delivery (PD) protocol, driven by the USB-iF, has emerged as the de facto standard for fast charging due to its robust performance, safety features, and broad compatibility. The association’s commitment to innovation has ensured PD’s continued evolution. While current fast charging technologies have their shortcomings, PD holds great promise for future improvements. It’s worth noting that Apple has adopted USB PD for all its mobile devices, tablets, and laptops.
What should I consider when buying a fast charger?
A>Ensure that your device is compatible with the charger’s fast-charging technology. For older devices, using standard or moderate fast charging is advisable to protect the battery and components in your phone. High-power fast charging requires high currents and voltages, making it crucial to use high-quality, compatible cables to avoid fire hazards.
Are there differences between fast charging for electric vehicles and smartphones?
A>While both use lithium-ion batteries, the battery technology and safety considerations for electric vehicles are significantly more stringent due to higher power levels. The thermal management and battery management systems in electric vehicles are also more complex.
Why is it not recommended by experts to frequently use fast charging on smartphones?
A>Fast charging generates heat within the battery, which can accelerate aging and reduce capacity. Frequent fast charging can lead to overheating, internal damage, and increased risk of swelling or short circuits.
When is it appropriate to use fast charging?
A>Fast charging is best suited for emergencies or occasional use. For everyday charging, using a standard charger can help prolong battery life.
Why are Japanese consumers less receptive to fast charging for smartphones?
A>Japanese consumers generally have higher demands for product stability and durability, and they prefer products with mature technologies. Fast charging technology, on the other hand, is relatively new, and there are concerns about its long-term performance and safety. Additionally, some manufacturers have introduced their own proprietary fast-charging protocols, leading to significant fragmentation in the fast-charging market. Slow charging can extend battery life and reduce battery degradation, aligning with Japanese consumers’ preference for long-term product use. In the future, there may be breakthroughs in fast-charging technology that can be applied to all types of mobile devices. Despite the challenges, the trend towards a unified fast-charging standard is unstoppable. We can look forward to a future with more convenient universal charging experiences, faster charging speeds, better battery materials, and safer charging technologies. By then, Japanese consumers’ demand for fast charging in their phones is likely to increase and become more widely accepted.
What are the differences in price between dvalo chargers and charging cables compared to similar products on the market ?
A>The primary differences lie in the overall manufacturing process and design. In the electronics industry, the cost of components that meet safety regulations alone can vary by at least 15%. If alternative sub-standard components are used, the cost can be even lower. When combined with alternative processing costs and the use of substandard/recycle materials, the resulting product can have a shockingly low cost. Additionally, there are many products that falsely advertise with over-specs.. dvalo products, on the other hand, use entirely new components and materials that meet international safety standards. They use original Apple IC, USB-iF certified Power ICs, and feature multiple safety protection circuits. Manufactured by UL-certified professional factories, dvalo products are designed without cutting corners or false advertising, ensuring safe and reliable use.
How can I purchase your products, are they sold on other online shopping platforms ?
A>As we are the manufacturer/brand owner of dvalo brand products and the distributor of some other tech products in Malaysia, we have chosen to sell directly to consumers through our official website. This allows us to eliminate the profits that would go to middlemen and the high fees charged by online shopping platforms, and pass on the savings directly to our customers. Considering the high production costs of our products, we believe this is the most cost-effective way for consumers to purchase our products. For consumers with limited budgets or those who do not want to spend extra on original or expensive chargers and cables, you can contact us directly via WhatsApp or email to discuss purchasing options at a more affordable price.
What is UL ?
A>UL (Underwriters Laboratories) is a globally recognized third-party safety science company that primarily engages in safety testing and certification. UL certification is one of the most authoritative safety certifications in the United States and worldwide, representing that a product has met its stringent standards in safety, performance, and quality.
Knowledge Base / Q&A - Powerbank
What types of batteries are generally used in Powerbanks?
A>Powerbanks primarily use lithium-ion batteries, which come in two main types: cylindrical lithium-ion batteries and thin, flat lithium-polymer batteries.
Are there any powerbanks that are both compact and have a high capacity ?
A>For lithium-ion battery power banks on the market, their size is generally proportional to their battery capacity.
Who needs a Powerbank?
A>Powerbanks are primarily designed for occasional use when your phone’s battery is low, providing a temporary boost. It’s recommended to choose a Powerbank with a suitable capacity and size for easy portability. Prioritize safety and quality over sheer capacity and charging speed.
Can I leave my Powerbank plugged in after it’s fully charged?
A>dvalo Powerbanks have built-in safety features that automatically cut off power when fully charged. However, it’s generally recommended to unplug the device for safety reasons.
How can we ensure the safety of our devices while charging?
A>Apart from having high-quality chargers or powerbanks, you also need high-quality charging cables. Both are equally important. While there are indeed potential risks associated with cheap charging products, there’s no need to panic excessively. As long as we maintain a high level of safety awareness, choose products from reliable manufacturers or sellers, follow the correct usage instructions, and pay attention to safety guidelines, we can minimize risks.
Using a Powerbank with a low-voltage 5V USB port to charge devices like phones versus a 220-240V wall charger, and it won’t cause electric shock ?
A>While the voltage of a 5V USB port is lower, theoretically, as long as the current exceeds 1A, it can lead to painful or fatal consequences, and even death. The lethal current in amperes can vary from person to person and is affected by many factors. So, the key to preventing these risks is to address the safety issues of charging accessories that are causing the root of the problem.
With large-capacity power banks of 10,000mAh, 20,000mAh, and even 30,000mAh being sold so cheaply, why should I consider buying a product with a smaller battery capacity with a small price gap ?
A>The cost of a product is influenced by a multitude of factors, including the quality of materials used and safety features implemented. High-quality products, due to their stringent design and construction standards, inevitably incur higher costs compared to cheaper alternatives.
The primary purpose of a powerbank is to provide a temporary charge for electronic devices when a power outlet is unavailable. Once you return home, you can fully recharge your devices. Consumers should select a powerbank based on their specific needs, considering factors such as capacity, size, and weight. Having a sufficient capacity is important, but there’s no need to prioritize the largest capacity or the fastest charging speed.
In reality, high-current or high-voltage fast charging technologies, when used with low-quality chargers and cables, pose significant safety risks. This is especially true for consumers who prioritize speed and convenience over safety and are unwilling to pay a premium for quality.
Additionally, larger capacity powerbanks carry a higher risk of catastrophic failure in the event of an accident. An explosion from a larger capacity powerbank can have devastating consequences. Therefore, it is essential to prioritize safety and avoid taking unnecessary risks.
Can I leave my powerbank plugged in after it’s fully charged ?
A>Our dvalo brand chargers, including powerbanks, are designed to automatically stop charging once the battery is full. They also incorporate various safety protection circuits. However, for optimal safety, we still recommend unplugging the charger after the power bank is fully charged.
What can cause a Powerbank to explode or catch fire?
A>The primary causes of powerbank explosions or fires are often attributed to defective, low-quality batteries or flaws in the safety circuit design. The use of problematic, cheap electronic components or a lack of safety circuit protection can also contribute to these incidents. In fact, a battery that doesn’t appear swollen may still be unsafe, as it could have underlying issues. Additionally, poor-quality batteries can overheat and ignite if subjected to excessive heat.
That’s why our company’s dvalo powerbank product not only incorporates various safety circuit protections but also selects high-cost, high-safety batteries from reputable brands like Panasonic and LG to ensure the safety and reliability of our products. This might be exclusive in the Malaysian market. In reality, batteries from different manufacturers vary in design and safety mechanisms. It’s been reported that even powerbanks bearing well-known international brands, which are also manufactured by contract manufacturers, may not use expensive, branded batteries due to cost considerations. Panasonic and LG are major battery suppliers for renowned electric vehicles like Tesla.
What precautions should be taken when using a powerbank ?
A>To avoid overheating the battery, try not to charge it multiple times within a short period and avoid using your device while it is charging.
Additionally, to minimize the risk of accidents, store it in a cool, ventilated place. Avoid exposing it to direct sunlight, high humidity, open flames, or water. Also, prevent it from being crushed by heavy objects or subjected to excessive vibration or shaking.
Knowledge Base / Q&A - Sync & Charge Cable
What are the common types of charging cables?
A>Common types include USB Type-C to USB-A/USB Type-C, Apple Lightning to USB-A/USB Type-C, and Micro USB to USB-A.
What are the consequences of using low-quality or mislabeled charging cables?
A>In terms of safety risks, the conductors inside a charging cable, due to poor workmanship or quality, are prone to overheating or short circuits, posing a fire hazard. If the insulation layer is damaged, aged, or mislabeled, it can easily lead to electric shock, electric leakage, or combustion. Non-compliant charging cables can also generate strong electromagnetic interference, affecting the signal quality of the phone.
Regarding performance, it can result in slow and unstable charging speeds, and may even cause intermittent connections that are invisible to the naked eye, affecting the lifespan of the device’s internal components and damaging the battery. If such a charging cable with data transfer capabilities, it can lead to slow and unstable data transfer speeds, or even transmission errors. It may cause oxidation and damage to the charging port on the phone’s circuit board, especially with long-term use of low-quality charging cables. The rough workmanship of the plug interface can damage or cause poor contact with the charging port on the phone’s circuit board, leading to interrupted charging and affecting charging efficiency. There have been numerous cases of fatalities caused by using cheap charging accessories, including incidents involving low-quality charging cables.
How can we ensure the safety of our devices while charging?
A>Apart from having high-quality chargers or powerbanks, you also need high-quality charging cables. Both are equally important. While there are indeed potential risks associated with cheap charging products, there’s no need to panic excessively. As long as we maintain a high level of safety awareness, choose products from reliable manufacturers or sellers, follow the correct usage instructions, and pay attention to safety guidelines, we can minimize risks.
Why does the dvalo USB-A to USB Type-C cable have an additional 56k Ohm resistor built-in ?
A>First and foremost, our primary design consideration is to ensure that our charging cable is compatible with a wider range of USB-A devices, and to make charging more secure on USB-A ports. For instance, it allows devices like smartphones/tablets to be safely charged from the low-voltage USB-A ports of PCs and laptops. Particularly for the Nintendo Switch and other expensive gaming devices, dvalo’s charging cable effectively reduces the risk of safety hazards caused by excessive current. Additionally, it prevents the Nintendo Switch from experiencing frame rate drops (slow and abnormal display) or crashes due to unstable voltage. In terms of overall design, unlike similar low-quality or generic charging cables, our product not only offers high quality and protects your devices while charging, but also boasts excellent compatibility. Moreover, it can extend the lifespan of the Nintendo Switch console and its battery.
Are all USB Type-C cables the same?
A>While USB Type-C is a universal connector, cables vary in internal structure, materials, and data transfer speeds. Lower-quality cables may not support all features and can compromise performance and safety.
What sets dvalo’s USB Type-C charging cables apart from other similar products on the market?
A> All of dvalo’s USB Type-C charging cables are USB-iF certified, ensuring they meet the USB Implementers Forum’s standards for quality, performance, safety, and compatibility. Additionally, our products feature a robust plug rugged design, making them exceptionally durable.
How does a dvalo Lightning cable with an Apple MFi certified chip differ from cheaper alternatives?
A>dvalo Lightning cable uses genuine Apple Lightning IC chip. With Apple MFi certification, users can enjoy the same charging speed and functionality as Apple’s original charging cables. Besides offering excellent stability and compatibility, it also guarantees the safety of your devices. On the other hand, those inexpensive Lightning cables, often claiming to be authentic or the same function, use cheap materials and third-party non-Apple IC. Not only do they lack the aforementioned features, but they may also fail to correctly identify Apple devices, leading to risks such as overcharging or over-discharging. Additionally, they may not be fully compatible with other iOS devices and may even pop up error messages intermittently. Only dvalo’s Lightning charging and data cables, equipped with genuine Apple Lightning IC, offer a worry-free experience.
What is USB-iF certification?
A>USB-iF is a non-profit organization that sets standards for USB devices. A USB-iF certified USB Type-C charging cable ensures compatibility, quality, and safety, allowing you to use it with confidence across different devices.
What is an E-marker chip?
A>According to USB-iF regulations, charging cables with a current exceeding 3A must embed an E-marker chip in the Type-C connector to achieve optimal charging efficiency and safety. Failure to do so may result in damage to the charging device. High-quality USB Type-C 5A charging cables that support USB Power Delivery (PD) fast charging typically include an E-marker chip. However, to cut costs, manufacturers of some low-cost 5A charging cables may omit this component. Furthermore, certain Chinese smartphone manufacturers have their own proprietary charging standards and protocols, which may have different requirements for charging cables, and some may not necessitate the use of an E-marker chip.
What is UL ?
A>UL (Underwriters Laboratories) is a globally recognized third-party safety science company that primarily engages in safety testing and certification. UL certification is one of the most authoritative safety certifications in the United States and worldwide, representing that a product has met its stringent standards in safety, performance, and quality.
Other Q&A
How can I extend the life of my phone’s battery?
A>Keep the battery charge between 25% and 80%.
How true is the product sharing on online platforms ?
A> Some are inaccurate. Consumers should exercise their own judgment.
How reliable are online product reviews?
A>Consumers should maintain a rational mindset.
The market for chargers, powerbanks and charging cables is so chaotic. How should we choose them ?
A>While there is indeed a risk of purchasing cheap, mislabeled, or low-quality charging products, there’s no need to panic excessively. By being more aware of safety, choosing products from reputable manufacturers or sellers, and following correct usage guidelines, you can mitigate these risks. If you have any questions or require further assistance, please feel free to contact us via WhatsApp or email.
Does your company provide wireless charger product ?
A>No. Competition in the marketplace is fierce. While manufacturers have undoubtedly embraced wireless charging technology for its convenience, many industry professionals have expressed concerns about the safety of the electromagnetic radiation it produces. After all, even in safety standard laboratories, tests can only be conducted over short periods. This is especially concerning considering wireless charging can penetrate the hard casings of smartphones, as well as the potential health concerns caused by long-term use.
Do you have charging products with USB 4, Thunderbolt 4, and 240W high-power capabilities?
A>Please contact us via WhatsApp or email for more information. Thank you!