Best Polymer MP3 Player Batteries of 2025

The PFHL Flip 4 Battery is designed for your Flip 4 and Flip 4 Special Edition devices, providing a high capacity of 5500mAh for extended usage. Made with premium Grade A+ battery cells, it ensures reliable performance over 2000 charge cycles, giving you peace of mind with every use. The battery is also certified with CE and ROHS, ensuring safety and quality. With a complete repair tool kit included, you can easily replace your old battery, making it a convenient choice for users looking to enhance their device's longevity.

The Bomibattery Xtreme Battery is a 5000mAh Li-polymer battery replacement for JBL Xtreme and JBL GSP0931134. With a voltage of 7.4V and a dimension of 130X31X20mm, this battery offers a long-lasting power source for your MP3 player. The Li-polymer type ensures the safety and stability of the battery. With a one-month free replacement or full refund, you can purchase with confidence. The Bomibattery Xtreme Battery is an excellent choice for those who need a reliable and high-quality battery replacement for their JBL Xtreme.

The HQRP Replacement Battery is designed for the Microsoft Zune 30GB MP3 Player. It offers a capacity of 720mAh and is a rechargeable Li-Polymer battery. With no memory effect, it can be recharged without any loss of capacity. This battery is 100% compatible with original battery and charger devices, and comes with a 200-day warranty.

The HXJNLDC DC 3.7V 5000mAh Lithium Ion Polymer Battery is a rechargeable battery applicable for mobile energy storage, power supply, LED light, and other electronic products with 3.7-5V less than 18.5Wh 5000mAh. It features a protection board to prevent overcharge, overdischarge, overcurrent, and short circuit. The battery is easy to install, and the package comes with a heat shrinkable insulating sleeve for wire connection. The battery also has a genuine JST Pitch 2.54mm 2 wire connector module. The battery is not applicable to high-power electric tools and model aircraft.

The KOOAQQ JBL Flip 4 Battery is a reliable replacement for your JBL Flip 4 and its Special Edition. This battery is designed with high-quality standards and features multiple safety protections to prevent issues like overcharging and overheating, ensuring safe operation for you and your device. With a robust capacity of 4000mAh, it can endure up to 1200 charging cycles, giving you long-lasting usage. Additionally, the battery comes with clear usage instructions to help you achieve optimal performance after a few charge cycles. This means you'll enjoy extended playtime without frequent recharges.

Upgrade your iPod Classic 6th GEN A1238 (80GB) with the Upstart Battery Replacement. This replacement battery is designed to be compatible with your iPod and has a lifetime warranty. With a capacity of 450mAh, this battery will provide your iPod with the power it needs for long periods of use. The Upstart Battery Brand ensures that you get a high-quality battery that will last. Replace your old battery and enjoy your music without worrying about running out of power.

The WRUMI Beats Battery is designed for various Beats models, including the Studio 2 and Studio 3. It features a 640mAh lithium polymer capacity, providing reliable power for your headphones. This battery has no memory effect, which means you can charge it anytime without worrying about reducing its lifespan. Additionally, it is equipped with multiple safety protections, including safeguards against overcharging and overheating, ensuring a safe user experience. To maximize battery life, it's recommended to fully charge and discharge it during the first few cycles, helping you get the most out of your investment.

The BCXY Zen V Battery is a reliable replacement option for your Creative DAP-FL0040 devices. With a capacity of 650mAh, it ensures your MP3 player runs longer between charges, so you can enjoy your favorite music without interruption. This lithium-polymer battery operates at a voltage of 3.7V, providing stable power for consistent performance. Its compact dimensions of 41.39 x 29.69 x 5.14mm make it easy to fit into your device, ensuring a hassle-free installation. Moreover, it meets international standards with ISO9001, RoHS, and CE certifications, giving you peace of mind about its safety and quality.

The Synergy Digital Battery is designed to be an excellent replacement for your Cowon player. With a capacity of 3600mAh, it ensures you have enough power for extended use, so you can enjoy your music without frequent recharging. Made with high-quality Japanese cells, this battery offers reliability and longevity. You’ll appreciate its perfect compatibility with your original equipment manufacturer (OEM) battery, making installation easy and hassle-free. This replacement battery is a smart choice for keeping your device running smoothly.

The kunbow JBL Flip 4 Battery is a high-capacity replacement option designed to enhance your JBL speaker experience. With 3200mAh of power, you can enjoy longer playtime without interruptions. This battery is fully compatible with the JBL Flip 4 and its Special Edition, ensuring a perfect fit. Additionally, it meets safety standards and certifications, giving you peace of mind while using it. Remember to charge it fully before use to prevent any potential damage. Overall, this battery is a reliable choice for keeping your music going strong.