Cameron & Co DS-CS-JBE300SL Battery 3.7V 610mAh for JBL E45BT E55BT Everest Elite 300

Cameron & Co DS-CS-JBE300SL Replacement Battery

This lithium-polymer cell restores power to JBL E45BT, E55BT and Everest Elite 300 headsets. It matches the original GSP753030 part and fits the factory battery compartment without modification. The 3.7 V 610 mAh capacity delivers the same runtime as the stock unit. Buyers who need a different voltage or connector should look elsewhere.

Sustained discharge performance

The 2.26 Wh rating supports continuous playback at typical listening levels without voltage sag. Li-polymer chemistry maintains stable output through the full discharge curve rather than fading quickly near the end. The slim 31.00 x 29.80 x 6.80 mm profile ensures consistent thermal contact with the headset chassis. Users expecting days of standby time from a single charge will not find that here.

610 mAh capacity decides fit

This single figure determines whether the cell physically fits and electrically matches the original design. A higher-capacity pack would exceed the 6.80 mm thickness limit; a lower one would reduce playtime below the factory spec. The 3.7 V nominal voltage is fixed by the headset charging circuit. Select this part only when the original GSP753030 is specified.