4500mAh 45A 21700 Rechargeable Lithium Battery - MaxAmps

Author: Franke

May. 26, 2025

mAh 45A Rechargeable Lithium Battery - MaxAmps

Lifetime Battery Warranty

MaxAmps offers a one-time, non-transferable lifetime warranty on any battery with a factory defect. Batteries that fail from improper storage or a use error are not covered. Replacements only apply to products purchased from MaxAmps and does not cover any other loss.

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WARNING:

Do not charge unattended! The user must have an appropriate understanding of the potential dangers of lithium batteries before purchase and usage. No expressed or implied guarantee of compatibility, suitability, or fitness for any particular purpose or device can be made.

  • DO NOT USE WITH UNPROTECTED DEVICE
  • ALWAYS USE A PROTECTIVE CASE OR BOX FOR STORAGE AND TRANSPORT
  • BATTERIES MAY EXPLODE, BURN, OR CAUSE A FIRE IF MISUSED OR MISHANDLED
  • ONLY use with proper protection circuitry
  • DO NOT short circuit intentionally or unintentionally
  • KEEP AWAY from metal/conductive objects to prevent short circuiting
  • DO NOT use if battery, wrapper or terminal insulator is damaged or torn
  • DO NOT over-charge or charge above the maximum voltage rating
  • DO NOT over-discharge or exceed the continuous discharge rating
  • DO NOT modify, disassemble, puncture, cut, crush, or incinerate
  • DO NOT expose to liquids or high temperatures
  • KEEP AWAY from pets and children
  • ALWAYS charge in or on a fire-proof surface and never leave batteries charging unattended
  • ONLY use a smart charger designed for this specific type of battery
  • DO NOT mix and match brands and models, old and new, used and unused batteries
  • STOP immediately if while charging/storing/using the battery it emits an unusual smell, feels hot, changes color or shape, or appears abnormal in any way
  • It is your responsibility to determine that your charger or device is functioning properly
  • If exposed to battery electrolyte, flush with water immediately and/or immediately contact a physician or emergency services
  • DO NOT throw away in the trash; contact your local jurisdiction for proper recycling or disposal

Returns
If in the first 30 days, you are not completely satisfied, you can send your items back for a replacement or your money back. This does not apply to custom built batteries. You pay the return shipping charge and we pay for the replacement to be sent to you. Shipping lithium batteries can require certifications. Contact a local dangerous shipper if shipping batteries back to MaxAmps. We will not accept packages that are not shipped properly. Damaged batteries or batteries without a return authorization will not be accepted and will be returned to sender.

Shipping Policy
For domestic US shipping, we ship via FedEx, UPS, or USPS. If you prefer a certain carrier, please specify in the notes on your order. We offer Standard 3-5 day shipping on orders to US locations. If you need it faster, we offer express 1-2 Day Express shipping. Contact us for Overnight shipping options. Because lithium batteries are considered dangerous goods, carriers do not guarantee overnight shipping, but they do offer it. In our experience, we have had a 90%+ success rate using overnight shipping.

For international shipping, we primarily ship via FedEx Priority but we also offer UPS Standard Ground to Canada. If your country is not listed on the website, we may still be able to ship to your country. You will need to contact us for a custom shipping quote. Be aware that our shipping costs cover postage and insurance on the package but not import costs such as duties, taxes, or broker fees.

Tracking details will be emailed at the time of shipment. Please allow time for the online tracking status to update.

We make every effort to ship within 24 business hours. If you need your order to arrive by a certain date, be sure to contact us directly and we will do our best to satisfy your request. For possible lost in transit shipments, please contact us immediately so that we can contact the carrier.

Some batteries must be shipped as fully regulated dangerous goods and will arrive to you with a 30% charge. We recommend charging up to 60-70% shortly after receipt. In addition, our lithium batteries have passed UN38.3 Testing making them safe for transport. This test summary can be viewed/downloaded via this link if needed.

Privacy Policy
This privacy policy discloses the privacy practices for (www.maxamps.com). By using our site, you consent to this privacy policy.

Information Collection, Use, and Sharing: We are the sole owners of the information collected on this site. We only collect information that you voluntarily give us via , through ordering and/or registering, or other direct contact from you. We will not sell or rent this information to anyone. We will use your information to respond to you regarding the reason you contacted us. We will not share your information with any third party outside of our organization, other than as necessary to fulfill your request, e.g. to ship an order.

Unless you ask us not to, we may contact you via in the future to tell you about specials, announcements, or changes to this privacy policy. You can do the following at any time by contacting us via the address or number given on our website: see what data we have about you if any, change/correct any data we have about you, have us delete any data we have about you, or express any concern you have about the use of your data.

Security: We take precautions to protect your information. Wherever we collect sensitive information, such as credit card data, that information is encrypted and transmitted to us in a secure way. You can verify this by looking for a closed lock icon at the bottom of the page you are on, or looking for “https” at the beginning of the address of the web page. While we use encryption to protect sensitive information transmitted online, we also protect your information offline. Only employees who need the information to perform a specific job (for example, billing, customer service, or shipping) are granted access to personally identifiable information. The computers and servers in which we store personally identifiable information are kept in a secure environment.

Cookies: We use cookies on this site. A cookie is a piece of data stored on a site visitor’s hard drive to help us improve your access to our site. For instance, when we use a cookie to identify you, you would not have to login a password more than once, thereby saving time while on our site. Cookies can also enable us to track and target interests of our users to enhance the experience on our site. Usage of a cookie is in no way linked to any personal identifiable information on our site.

Links: This website contains links to other sites. Please be aware that we are not responsible for the content or privacy practices of such other sites. We encourage our users to be aware when they leave our site and to read the privacy statements of any other site that collects personally identifiable information.

Updates: Our Privacy Policy may change from time to time and all updates will be posted on this page. This policy was last modified on 12/20/19.

SINC are exported all over the world and different industries with quality first. Our belief is to provide our customers with more and better high value-added products. Let's create a better future together.

If you feel that we are not abiding by this privacy policy, you should contact us immediately.

Terms of Service
User Agreement: This agreement is governed in accordance with the laws of the State of Washington. All users agree, through the use of this website, to the terms and conditions contained on this website. User hereby agrees to the exclusive jurisdiction in accordance to the courts of the State of Washington and any federal jurisdiction for any and all litigation. Please review all additional policies, such as the Privacy Policy, Liability Policy, Returns Policy, and Shipping Policy posted on this page. MaxAmps.com reserves the right to change or modify these policies at any time without prior notice.

Copyright Protection: All content on this Website (MaxAmps.com) are copyright. Any other use of materials on this Website without the prior written permission of Maxamps.com is strictly prohibited. Maxamps.com is not responsible for any content placed online by customers, including such content posted to alternate social media forums and third-party websites.

Trademark Protection: Trademarks, such as Maxamps.com, are either trademarks or registered trademarks of Maxamps.com. These trademarks may not be used in any way, except by the express written permission of MaxAmps.com, that may interfere with the business process or credit of Maxamps.com. Other products and company names mentioned on this Website may be the trademarks or registered trademarks of their respective owners.

Website Liability: MaxAmps.com, nor any of its affiliates, owners, employees, and/or other representatives will be liable for damages arising from or in-direct relation to the use of this Website. This includes all information, content, materials, and/or products included within this Website. MaxAmps.com reserves the right to cancel or refuse orders at our sole discretion. Please contact us immediately if you become aware of any errors or discrepancies.

How long does a rechargeable lithium ion battery last?

Understanding the Lifespan of Rechargeable Lithium Ion Batteries

Rechargeable Lithium Ion batteries have become an integral part of our daily lives, powering everything from our smartphones and laptops to electric vehicles and renewable energy storage systems. As a leading manufacturer of Li-ion batteries, LiPol Battery Co., Ltd is committed to providing you with not just high-quality power solutions, but also valuable information about these technologies. In this post, we delve into a key question: How long does a rechargeable lithium ion battery last?

What is a Rechargeable Lithium Ion Battery?

A lithium ion battery is a type of rechargeable battery in which lithium ions move from the negative electrode to the positive electrode during discharge and back when charging. They are known for their high energy density, minimal memory effect, and low self-discharge, making them a popular choice for many electronic devices.

How Long Does a Rechargeable Lithium Ion Battery Last?

The lifespan of a lithium ion battery is typically defined in terms of cycles, with one cycle being a full charge and discharge of the battery. Most lithium ion batteries are designed to last between 300 to 500 cycles while maintaining at least 80% of their initial capacity. This usually translates to about 2 to 3 years of life for most commonly used devices like smartphones and laptops, assuming daily charging and discharging.

However, it’s essential to note that the actual lifespan of a lithium ion battery can vary depending on several factors, including:

Usage: The more frequently a battery is used and the more intensive the application (i.e., high-demand devices like drones), the faster the battery will degrade.

Charging habits: Overcharging, fast charging, and charging at extreme temperatures can all reduce a battery’s lifespan.

Storage conditions: For optimal longevity, lithium ion batteries should be stored in a cool, dry environment.

Quality of the battery: Higher quality batteries, like those manufactured by LiPol Battery Co., Ltd, tend to have longer lifespans due to the use of superior materials and manufacturing techniques.

lithium ion Battery

is also a standard model of lithium ion rechargeable battery. The name “” are the battery’s dimensions, with 21mm in diameter and 70mm in length. The lithium ion battery also can be order as a cell or battery pack.

lithium ion Battery

The lithium-ion rechargeable battery diameter is 26mm, and the length is 65mm. It is one of the standard models of hard case cylindrical li-ion batteries. If you need to order batteries or get more information, please us.

For more mAh  Lithium Ion Battery Manufacturerinformation, please contact us. We will provide professional answers.

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