1400mAh NH-14WM Replacement Battery for Sony Walkman Cassette Player WM-EX921

Our brand-new MP3 Audio Player Battery compatible with Sony NH-14WM is engineered to deliver long-lasting and stable performance. It is designed to meet rigorous standards, ensuring full compatibility with devices such as the Sony Walkman Cassette Player WM-EX921. This battery comes with a one-year warranty and has passed essential safety certifications including CE, RoHS, and ISO9001. Choose our Sony NH-14WM battery for a power solution that combines quality, safety, and convenience. Invest in authentic performance and keep your Sony Walkman Cassette Player WM-EX921 running like new.

1400mAh NH-14WM Replacement Battery for Sony Walkman Cassette Player WM-EX921

Product Specifications

Brand: Sony MP3 Audio Player Battery

Battery Type: Ni-MH

Battery Voltage: 1.2V

Battery Capacity: 1400mAh

Warranty: 30 Days Money Back, 1 Year Warranty.

Over 500-800 times of charge and discharge.

Compatible Part Numbers:

• NH-14WM

Compatible Models:

for Sony Walkman Cassette Player WM-EX921

for Sony Walkman Cassette Player WM-609

for Sony NE20

for Sony 730

for Sony EJ2000

for Sony 1000

for Sony EX921

for Sony R909

for Sony 900

for Sony NC-5WM

for Sony NC-6WM

for Sony NH-9WM

for Sony NH-10WM

for Sony D-E888 Walkman

for Sony MD/CD Walkman MiniDisc Gumstick

As a professional manufacturer, we offer a 100% brand new Ni-MH battery for Sony NH-14WM, built with genuine Grade A cells to ensure high quality and stable performance. Certified by CE, ROHS, and MSDS, this battery delivers excellent discharge characteristics and supports over 500–800 charge cycles.

It is fully compatible with original Fujitsu equipment and features multiple built-in protections including over-charge, over-current, over-voltage, and short-circuit prevention. Designed with an advanced printed circuit board (PCB), it provides reliable and safe operation.

Backed by a one-year warranty, 30-day money-back guarantee, and 100% secure shopping assurance, we provide premium performance at a competitive price.

To ensure optimal performance and longevity of your Sony NH-14WM Battery, please adhere to the following guidelines:

1.Storage - Store the battery NH-14WM in a clean, dry, and cool environment, away from heat sources and metal objects. During storage, the battery will gradually self-discharge. It is recommended to store it at approximately 40% state of charge.

2.Charging and Discharging - Unlike older battery technologies, lithium-ion batteries do not require frequent full discharge cycles. Only perform a full discharge approximately every 30 charging cycles. Avoid charging the battery beyond its specified threshold voltage.

3.Regular Use - Avoid leaving the battery NH-14WM idle for extended periods. It is advisable to use the battery at least once every two to three weeks. If the battery has been unused for a long time, follow the initial break-in procedure as recommended for new batteries.

4.Calibration - If the battery indicator shows 76% or less during use, fully charge it, then fully discharge it, and finally recharge it completely to calibrate the battery level accuracy.

5.Usage on Fixed Power - Consider removing the battery from the laptop when using a fixed power source for extended periods to reduce unnecessary charging cycles.

6.Short-Circuit Prevention - Do not short-circuit the battery, as this can cause serious damage and compromise safety.

By following these practices, you can help maintain the performance and extend the life of your Sony NH-14WM Battery.