11 Superior External Phone Battery For 2024

Mobile Accessories

When it comes to staying connected in today's digital age, having a reliable external phone battery is essential. As we move towards 2023, the demand for superior external phone batteries continues to grow. Whether you're a traveler who needs to stay connected on the go or someone who relies heavily on their phone for work, having a battery that can keep up with your busy lifestyle is a must. In this article, we will explore and review 11 superior external phone batteries that are sure to meet your power needs and provide you with the peace of mind knowing that your device is always charged and ready to go.

 

The Portable Charger Power Bank 25800mAh is an ultra-high capacity battery pack that offers fast charging for various devices. With its intelligent controlling IC, this power bank ensures safety and reliability. It is compatible with iPhone, Android, iPad, iwatch, Airpods, Samsung Galaxy, and other smart cell phones and tablets. The power bank has dual USB ports for charging two devices simultaneously and can be fully recharged in 8-12 hours. It features four LED lights to indicate the remaining power and comes with a built-in smart protection system for complete safety. This portable charger also includes a 24-month support service. With its massive capacity, universal compatibility, and fast charging capabilities, it is an ideal accessory for travel and outdoor activities.

Key Features

  • 2019 Latest Design Portable Charger with 25800m Ah Ultra-Huge Capacity
  • Universal Compatibility with various devices
  • Dual USB ports for simultaneous charging
  • Four LED lights indicating remaining power
  • Built-in smart protection system for safety
  • 24-month support service
  • Specifications

  • Color: Black-Black-Red
  • Dimension: 35.40Lx71.28Wx8.64H
  • Size: 1 Count (Pack of 1)
  • Pros

  • Massive capacity charges devices multiple times
  • Fast charging capabilities
  • Compatible with a wide range of devices
  • Includes a 24-month support service
  • Cons

  • Slightly heavy and bulky
  • Long charging time
  •  

    The Portable Charger Power Bank 25800mAh is a reliable and powerful accessory for those who need a high-capacity portable charger. It offers fast charging for various devices and ensures safety with its smart protection system. The ability to charge two devices simultaneously is convenient, and the four LED lights make it easy to monitor the remaining power. While it may be slightly heavier and bulkier compared to smaller chargers, its massive capacity and compatibility make it worth considering. Overall, this portable charger is a great investment for travelers, outdoor enthusiasts, and anyone who wants to ensure their devices never run out of battery.

     

    The TG90° Cell Phone External Battery Pack is a portable charger with built-in lightning cable, USB-C, and micro-USB cable. It is compatible with iPhone and Android phones, making it a versatile power bank. With a high speed 5V 2.1A max output, it allows for simultaneous charging of multiple devices. The compact design and powerful 10000mAh capacity make it perfect for traveling. It features intelligent safety protection with multi-protect system microchips to prevent overcharging, over-discharging, over-voltage, over-current, and short circuit. The package includes the portable charger and a USB charging cable. With a rating of 4.2/5 based on customer reviews, this power bank provides reliable backup charging for your mobile devices.

    Key Features

  • Portable Charger with Built in Cables
  • Apple MFi Certified Power Bank
  • High Speed Charging
  • Compact Design with Powerful Capacity
  • Intelligent Safety Protection
  • What's You Get: 1 * 10000m Ah Portable Charger, 1 * USB Charging Cable
  • Specifications

  • Color: Black
  • Dimension: 5.71Lx3.13Wx0.58H
  • Pros

  • Multifunctional power bank with built-in cables
  • Apple MFi Certified for i Phone compatibility
  • Allows for simultaneous charging of multiple devices
  • Compact and durable design
  • Intelligent safety protection system
  • Comes with a 12-month warranty
  • Cons

  • LED lights may stop working after some time
  • Charging speed may be slower when using international power converters
  • May have occasional issues with charging stability
  •  

    The TG90° Cell Phone External Battery Pack is a reliable and versatile power bank that offers convenience and peace of mind. With its built-in lightning cable, USB-C, and micro-USB cable, you can easily charge your iPhone and Android phones without the need for extra cords. The high-speed charging and compact design make it perfect for on-the-go use. While there may be occasional issues with LED lights and charging stability, the intelligent safety protection system ensures the safety of your devices. Overall, this power bank provides a handy backup for your mobile devices and is backed by excellent customer service. If you’re looking for a reliable and multifunctional power bank, the TG90° Cell Phone External Battery Pack is a great choice.

     

    The Portable Charger Small Size Built in Cable 6000mAh Power Bank is a compact and lightweight external battery pack that offers convenience and portability for on-the-go charging. With built-in cables for iPhones and Android phones, you don't need to bring extra cords. It features a real battery capacity of 6000mAh, providing sufficient power supply for daily cell phone use. The ultra-thin credit card-sized design makes it easy to carry in any pocket without adding bulk. The power bank supports fast recharge through micro and Type C input, and it comes with a micro USB charging cable. Overall, this portable charger offers a reliable and lightweight solution for emergency phone battery drain.

    Key Features

  • Dual charging cables attached
  • Real battery capacity of 6000m Ah
  • Credit card-sized ultra thin design
  • Micro and Type C input for fast recharge
  • Comes with USB charging cable and warranty
  • Specifications

  • Color: 6000m Ah Black
  • Dimension: 4.13Lx2.60Wx0.51H
  • Size: 6000m Ah
  • Pros

  • Convenient built-in cables for both i Phone and Android
  • Compact and lightweight design
  • Fast recharge with micro and Type C input
  • Comes with USB charging cable and warranty
  • Cons

  • Device may not be powerful enough for some users
  • Charge may not last long for extended use
  • May require removing phone case to charge
  •  

    The Portable Charger Small Size Built in Cable 6000mAh Power Bank offers a practical and lightweight solution for emergency phone charging. With its built-in cables, compact size, and fast recharge capabilities, it provides convenience and portability for on-the-go use. While it may not be the most powerful option available and the charge may not last long for intensive use, it is reliable for everyday power needs. The included USB charging cable and warranty add value to the product. Overall, this portable charger is a great companion for travel, outdoor activities, and any situation where you need a quick and convenient power boost for your cell phone.

     

    The Portable Charger Power Bank 26800mah is a highly reliable external battery pack that offers ultra-high capacity. With a massive 26800mAh capacity, it can charge most phones over 6 times and tablets at least 2 times. It is universally compatible with iPhone, all Android smartphones, tablets, mp3/mp4 players, and other USB-charged devices. The power bank features 2 USB output ports, allowing you to charge two devices simultaneously. It also comes with built-in intelligent controlling IC for superior safety, protecting the power bank against overcurrent and short circuit. The power bank can be fully recharged in 8-16 hours and features 4 LED indicators to show the remaining power. The package includes the power bank, a micro USB cable, a user manual, and offers extended after-sale technical support and a 45-day full refund guarantee. With a customer rating of 4.4/5, this portable charger power bank is a reliable and convenient solution for on-the-go charging.

    Key Features

  • Colossal 26800m Ah capacity
  • 2-port 3.1A output for simultaneous charging
  • Intelligent Controlling IC for safety
  • 2x fast recharge speed with 4 LED indicators
  • Extended 24-month after-sale technical support
  • Specifications

  • Color: Black
  • Dimension: 5.91Lx2.95Wx0.60H
  • Pros

  • Massive battery capacity, charges most phones over 6 times
  • Can charge two devices simultaneously
  • Built-in safety features and certifications
  • Fast recharge speed with LED indicators
  • 24-month after-sale technical support
  • Cons

  • Heavier than anticipated
  • Long charging time
  • May require a more powerful charging source
  • Lack of specificity in compatible devices
  •  

    The Portable Charger Power Bank 26800mah offers exceptional charging capacity and versatility. With its massive 26800mAh battery, it can provide multiple charges to smartphones, tablets, and other USB devices. The ability to charge two devices simultaneously is a convenient feature, especially for those who are always on the go. The built-in safety features and certifications provide peace of mind, ensuring the device and your equipment are protected. While the power bank may be slightly heavier than expected, it makes up for it with its reliable performance. The longer charging time and lack of specificity in compatible devices are minor drawbacks but do not significantly affect the overall functionality of the product. Overall, this portable charger power bank is a reliable and efficient solution for keeping your devices powered up during your busy day-to-day activities.

     

    The Alongza Portable Phone Charger is a compact and lightweight power bank that provides a convenient solution for charging your iPhone on the go. With a slim design and built-in cable, it is easy to carry and eliminates the need for extra cords. The 4500mAh battery capacity is enough for emergency power supply, and the power bank can charge up to three devices at once. It features both USB C and USB A ports for compatibility with different devices. The charger is popular for its simple and attractive design, making it a great gift for anyone. Overall, this portable charger is a reliable and convenient option for iPhone users.

    Key Features

  • Small and lightweight design
  • Built-in cable for i Phones
  • Fast charging with USB C input and output
  • 4500m Ah battery capacity
  • Ideal for travel and outdoor activities
  • Specifications

  • Color: White
  • Dimension: 5.35Lx3.15Wx0.67H
  • Pros

  • Compact and easy to carry
  • Fast charging capability
  • Can charge multiple devices simultaneously
  • Attractive design
  • Cons

  • Not as powerful as advertised
  • Limited charging capacity for some devices
  •  

    The Alongza Portable Phone Charger is a reliable and convenient power bank for iPhone users. Its compact size and built-in cable make it easy to carry and use on the go. With fast charging capabilities and the ability to charge multiple devices at once, it offers a practical solution for those who are frequently on the move. While some customers have reported that its charging capacity is not as powerful as advertised, it still provides sufficient power for emergency situations. Overall, this portable charger is a good option for anyone looking for a stylish and reliable charging solution for their iPhone.

     

    The Alongza 6000mAh Small Portable Phone Charger is a lightweight and compact power bank that is perfect for on-the-go charging. With its built-in cables and slim design, it offers convenience and portability. The power bank has a real battery capacity of 6000mAh, providing enough power to fully charge a phone more than once. It supports fast charging with micro and Type-C input options and can be fully charged in just 3 hours. The Alongza portable phone charger is an ideal gift for smartphone users and comes with a free 18-month warranty. With positive reviews highlighting its travel-friendly size and dependable charging capabilities, this power bank is a great choice for those in need of a reliable backup charger.

    Key Features

  • Includes 2 Charging Cables for Phone and Android
  • 6000m Ah Battery Capacity
  • Slim and Lightweight Design
  • Fast Recharge with Micro and Type-C Input
  • Ideal Gift for Smartphone Users
  • Comes with 18-Month Warranty
  • Specifications

  • Color: Green
  • Dimension: 4.13Lx2.60Wx0.51H
  • Pros

  • Convenient built-in cables
  • Compact and lightweight for easy carrying
  • Fast recharge capability
  • Ideal for travel and emergencies
  • Suitable for both i OS and Android devices
  • Cons

  • Low power transfer to phone
  • Not compatible with the latest i Phones
  • Charging capabilities may be unsatisfactory
  • Cables may become frayed over time
  •  

    The Alongza 6000mAh Small Portable Phone Charger offers a reliable and portable charging solution for smartphone users. Its slim and lightweight design makes it easy to carry around, while the built-in cables provide convenience. The fast recharge capability and 6000mAh battery capacity ensure that your device will have enough power when you need it most. Although some users have reported lower power transfer to their phones and compatibility issues with certain iPhone models, the majority of reviews praise its performance and travel-friendly features. Whether you need a backup charger for travel or emergency situations, the Alongza 6000mAh Small Portable Phone Charger is a worthwhile investment.

     

    Introducing the T-CORE Power Bank, the smallest and lightest 10000mAh external battery on the market. This ultra-compact portable charger is designed to easily fit in your pocket and provide high-speed charging for your iPhone, Samsung Galaxy S20/21, and other devices. With the capacity to fully charge an iPhone 8 up to 5 times, it ensures you never experience sudden power off during important online business negotiations. The power bank utilizes QC 2.0 quick charge technology, allowing you to fully charge your phone in less than 30 minutes. It features 2 USB outputs compatible with lightning, micro, and Type-C interfaces. The alumina-made shell offers a high-end, fashionable design and can even be used as a mirror. The intellectual digital volume display provides 1% accuracy. Enjoy peace of mind with the best after-sale service and a worry-free 24-month warranty. Stay powered up on the go with the T-CORE Power Bank!

    Key Features

  • Smallest power bank, pocket-sized
  • 10,000m Ah capacity, 5x i Phone 8 charges
  • QC 2.0 quick charge, 2 USB outputs
  • Alumina-made, mirror-effect shell
  • Intellectual digital volume display
  • Specifications

  • Color: Silver
  • Size: 1 Count (Pack of 1)
  • Pros

  • Compact and portable design
  • Fast charging capabilities
  • Supports multiple devices and interfaces
  • Stylish and fashionable appearance
  • Accurate digital volume display
  • Cons

  • Bigger and heavier than expected
  • Doesn't store as much charge as claimed
  • Size and weight may not be ideal for everyone
  •  

    The T-CORE Power Bank is a compact and efficient solution for anyone in need of a reliable portable charger. Its small size and lightweight design make it incredibly convenient for on-the-go use. The fast charging capabilities and multiple USB outputs allow for quick and simultaneous charging of multiple devices. While some users found it to be larger and heavier than expected, the overall performance and stylish appearance make up for it. With a respectable customer rating of 4.2/5, the T-CORE Power Bank is a highly recommended choice for those in need of a reliable and portable power solution.

     

    The Attom Tech Dual USB Output Super Slim Power Bank is a compact and lightweight portable charger that is perfect for everyday use. It has a pocket-sized design and weighs only 2.2 oz, making it easy to carry around. With dual USB outputs, it can fast charge two devices simultaneously. The power bank has a 3000mAh capacity, providing extended battery life for most phones. It also features intelligent safety protection to prevent over-charging, over-current, and short circuit. The device is certified by FCC, CE, CCC, and RoHS, ensuring safe and stable charging. It comes with a 1-year warranty and a 100% money-back guarantee.

    Key Features

  • Smallest 3000m Ah Power Bank – pocket-sized and lightweight
  • Fast Charge Two Devices Simultaneously – 1 USB-C and 1 USB output
  • 150% Extended Battery Life – charges most phones 1.5 times
  • Ultra Safety – intelligent control circuit for protection
  • Warranty – 1 Year Attom Tech Warranty, 100% Money Back Guarantee
  • Specifications

  • Color: Black
  • Dimension: 0.35Lx3.30Wx2.10H
  • Pros

  • Compact and lightweight design
  • Fast charging for two devices
  • Extended battery life
  • Intelligent safety protection
  • 1-year warranty and money-back guarantee
  • Cons

  • Lower capacity than claimed
  • Slow charging due to 1 amp output
  •  

    The Attom Tech Dual USB Output Super Slim Power Bank is a convenient and reliable portable charger for everyday use. Despite having a lower capacity than claimed, it still provides extended battery life for most phones. The compact and lightweight design makes it easy to carry around, and the dual USB outputs enable fast charging of two devices simultaneously. The intelligent safety protection ensures stable and secure charging. With a 1-year warranty and a 100% money-back guarantee, it offers peace of mind to users. Overall, it is a great option for those looking for a small, yet powerful power bank.

     

    The VRURC Small Power Bank 20000mAh is a portable charger with fast charging capabilities. It is the market's smallest and lightweight power bank with a high capacity of 20000mAh, making it easy to carry while providing power for multiple devices throughout the day. With its 4 outputs and 3 input options, including 22.5W PD and QC 3.0 fast charging, this power bank can charge up to 4 devices simultaneously, saving you time. It also features a LED display to monitor the remaining power accurately. Additionally, it offers safe charging protection with safeguards against overvoltages, overloads, overcurrents, and short circuits. Overall, the VRURC Small Power Bank 20000mAh is a convenient and reliable portable charger for anyone on the go.

    Key Features

  • Smallest and lightweight 20000m Ah portable power bank
  • PD 22.5W fast charging with 4 outputs
  • 3 input ways for quick recharge
  • Universal compatibility and LED display
  • Safe charging protection with auto shut-off
  • Specifications

  • Color: Black
  • Dimension: 4.42Lx2.73Wx1.08H
  • Pros

  • Compact and travel-friendly design
  • Fast charging for multiple devices
  • Versatile input options for quick recharging
  • Compatible with a wide range of smart devices
  • LED display for accurate power monitoring
  • Cons

  • USB C-PD port may not be suitable for heavy usage
  • Long recharge time
  •  

    The VRURC Small Power Bank 20000mAh is a reliable and portable solution for keeping your devices powered on the go. Its compact size and lightweight design make it easy to carry, while its fast charging capabilities and multiple outputs ensure quick and efficient charging for all your smart devices. The LED display provides accurate monitoring of the remaining power, and the universal compatibility allows you to charge various devices. Although the USB C-PD port may not be ideal for heavy usage, and the recharge time is relatively long, the overall performance and safety features of this power bank make it a valuable companion for travelers, business professionals, and anyone in need of reliable portable charging.

     

    The RETMSR Portable Charger is a high-capacity power bank with fast charging capabilities. With its massive 30000mAh Li-ion battery pack, it can charge an iPhone 8 up to 10 times, an iPhone 12 up to 7 times, a Samsung S9 up to 6 times, and a Pad mini 5 up to 3 times. It also works with other devices like headphones, speakers, and game switches. The charger features a USB-A1 22.5W output and a PD 20W USB C output for high-speed charging. It can charge up to 4 devices simultaneously. The charger comes with a bright LED flashlight with four modes and a durable design that can withstand pressure and scratches. It is compact and lightweight, making it convenient for travel. Overall, the RETMSR Portable Charger offers powerful and reliable charging on the go.

    Key Features

  • Ultra high cell capacity
  • High speed charging
  • Bright LED flashlight
  • Durable enough
  • What you get
  • Specifications

  • Color: Black Orange
  • Dimension: 6.77Lx3.43Wx1.00H
  • Size: 6.77×3.43×1 in
  • Pros

  • Massive 30000m Ah capacity
  • Fast charging for multiple devices
  • Bright and long-lasting LED flashlight
  • Durable and lightweight design
  • Worry-free guarantee and friendly customer service
  • Cons

  • May be too heavy for traveling
  • Clunky and bulky design
  • Progressive LED lights instead of a numeric display
  •  

    The RETMSR Portable Charger is an excellent choice for those in need of a high-capacity power bank. With its fast charging capabilities and the ability to charge multiple devices simultaneously, it offers convenience and reliability. The durable design ensures it can withstand everyday use, although its weight may be a drawback for some travelers. The bright LED flashlight is a useful addition for emergency situations. Overall, this power bank provides a reliable and powerful charging solution for those on the go.

     

    The TALK WORKS Portable Charger Power Bank is a reliable and efficient charging solution for your mobile devices. With its 6000 mAh battery, it provides a super fast charge at 2.1A of total output, allowing you to spend less time charging and more time using your devices. This power bank is compatible with various devices including iPhones, Samsung Galaxy phones, iPads, and Android devices. It features dual USB ports, allowing you to charge up to two devices simultaneously. The smart IC chip technology ensures that the power output is distributed evenly across both ports. The power bank also comes with integrated circuit protection, ensuring a safe charge for your devices. The sleek silver design adds a touch of style and portability. Overall, the TALK WORKS Portable Charger Power Bank is a reliable and convenient charging solution for your mobile devices.

    Key Features

  • 6000 m Ah battery with 2.1A total output
  • Up to 5x extra battery for your devices
  • Dual USB ports for simultaneous charging
  • Smart IC chip technology for even power distribution
  • Integrated circuit protection for a safe charge
  • Specifications

  • Color: Silver
  • Dimension: 2.50Lx0.85Wx3.80H
  • Size: 1 Count (Pack of 1)
  • Pros

  • Fast charging capability
  • Portable and lightweight design
  • Dual USB ports for simultaneous charging
  • Cons

  • Included cord may not fit all devices
  • Charging speed may be slower compared to other models
  •  

    The TALK WORKS Portable Charger Power Bank is a reliable and affordable option for keeping your mobile devices powered up on the go. With its fast charging capability, dual USB ports, and integrated circuit protection, it provides convenience and peace of mind. The sleek silver design adds a touch of style, while the compact size makes it easy to carry around. It would be even better if the included cord could fit all devices and the charging speed could be improved. Overall, if you’re looking for a portable charger that gets the job done without breaking the bank, the TALK WORKS Portable Charger Power Bank is worth considering.

     

    Buyer's Guide: External Phone Battery

    *Your ultimate guide to choosing the perfect external phone battery to keep your devices powered on the go.*

    Key Features to Consider

    • Capacity: The most important factor to consider is the battery capacity, measured in milliampere-hours (mAh). Choose a battery pack with capacity higher than your phone's battery for multiple charges.
    • Compatibility: Ensure that the external battery is compatible with your phone model and operating system. Some batteries come with multiple charging ports, catering to different devices.
    • Portability: Look for a compact and lightweight battery that can easily fit in your pocket or bag, making it convenient for travel.
    • Charging Time: Consider the charging time required for the battery pack itself. Quick charging technology can come in handy when you have limited time.
    • Extra Features: Some external batteries offer additional features such as built-in cables, wireless charging, LED indicators, and even a flashlight.

    Types of External Phone Batteries

    1. Power Banks

    • Traditional Power Banks: These are standard portable battery packs that rely on cables to charge your phone. They usually come with one or more USB ports to connect your devices.
    • Solar Power Banks: Ideal for outdoor enthusiasts, these power banks utilize solar energy to charge their internal batteries. They are convenient for camping or hiking trips where electricity is scarce.
    • Ultra-Compact Power Banks: These minuscule power banks are extremely lightweight and portable, providing a quick emergency boost to your phone’s battery.

    2. Battery Cases

    • Phone-Specific Battery Cases: These cases offer protection and extended battery life to your phone by integrating a battery into the case itself. They are model-specific and typically replace the existing phone case.
    • Modular Battery Cases: These cases consist of two parts: a base case that provides protection and a detachable battery module. The modular design allows you to swap batteries or use the case alone when additional power is not required.

    Charging Technologies

    • Wired Charging: The most common method, where the external battery is connected to your phone using a cable.
    • Wireless Charging: Some external batteries offer wireless charging capabilities, allowing you to charge your phone by placing it on top of the battery pack. Ensure your phone is compatible with wireless charging before considering this option.

    Tips for Optimum Performance

    • Charge the Battery Pack: Before heading out, ensure that the external battery is fully charged. Keeping it at maximum capacity will provide you with extra power whenever needed.
    • Use Appropriate Cables: Always use the cables provided with the external battery or genuine cables from reputable manufacturers. Inferior cables can result in slower charging or even damage your devices.
    • Protect from Extreme Temperatures: External battery packs are sensitive to extreme temperatures. Avoid exposing them to direct sunlight or cold weather, as it can affect their performance and lifespan.
    • Avoid Overcharging: Overcharging may degrade the battery's capacity over time. Disconnect your phone once it reaches 100% and avoid leaving it connected excessively.
    • Follow Airline Regulations: If you plan to fly, verify the airline's regulations on carrying external batteries. In some cases, they may need to be stored in carry-on luggage due to restrictions on checked baggage.

     

    FAQ

    Q: How long does it take to charge an external phone battery fully?
    A: The charging time depends on the battery capacity and the charging technology. On average, it takes anywhere from 4 to 8 hours to fully charge an external phone battery.

    Q: Can I charge my phone while the external battery itself is charging?
    A: Yes, most external phone batteries support pass-through charging, allowing you to charge both the battery pack and your phone simultaneously.

    Q: Can I use my external phone battery for other devices as well?
    A: Absolutely! External phone batteries are designed to charge a wide range of devices, including tablets, e-readers, smartwatches, and Bluetooth earphones.

    Q: How many times can an external phone battery charge my phone?
    A: The number of charges depends on both the capacity of the external battery and the battery capacity of your phone. As a rough estimate, a 10,000mAh battery can charge most phones 2-3 times.

    Q: How long can I store an external phone battery without using it?
    A: If stored properly in a cool and dry place, an external phone battery can retain at least 80% of its capacity for up to 6 months.

    Q: Can I take my external phone battery on an airplane?
    A: Yes, but there are certain restrictions. Please ensure your external battery is within the permitted capacity range and check with the airline for individual guidelines.

    Q: Do I need a special cable for wireless charging with an external phone battery?
    A: No, most wireless charging-capable external phone batteries come with a built-in charging pad. However, always verify whether your phone is compatible with wireless charging.

    Q: Can I charge my phone wirelessly without a battery case or power bank?
    A: Yes, some smartphones support wireless charging without the need for additional accessories. Check your phone’s specifications to see if it has built-in wireless charging capability.

    Q: Is it worth investing in a solar power bank?
    A: Solar power banks are an excellent choice if you frequently find yourself in environments without convenient access to electricity. However, keep in mind that solar charging is typically slower than traditional charging methods.

    Q: Are external phone batteries covered by a warranty?
    A: Yes, most reputable brands offer a warranty period for their external phone batteries. The warranty duration varies, so check the terms and conditions provided by the manufacturer before making a purchase.