JBL Tune 500BT/510BT/600BT NC (603028) Li-Po Replacement Battery

The 603028 is a rechargeable lithium-ion polymer battery commonly used in wireless headphone devices, delivering stable and efficient power for audio playback and Bluetooth connectivity. With a capacity of 450mAh, it provides reliable backup time for extended listening sessions. Operating at a nominal voltage of 3.7V with a charging voltage limit of 4.2V, this battery is engineered for safe charging cycles, consistent performance, and long service life. It is widely used as a replacement battery for headphones such as the JBL Tune 500BT, JBL Tune 510BT, and JBL Tune 600BT NC, making it a suitable choice for restoring original battery performance in compatible audio devices.

Specifications

• Model Number: 603028
• Battery Type: Lithium-ion Polymer Battery
• Capacity: 450mAh
• Nominal Voltage: 3.7V
• Charging Voltage Limit: 4.2V
• Compatibility: JBL Tune 500BT / 510BT / 600BT NC