Rechargeable Lithium Battery MITEL 5614 (MPN 50006904) for Cordless Phones and Handsets

Rechargeable lithium battery MITEL 5614 is a replacement power source designed for compatible cordless phones and handsets. It restores portable devices' operating time, supports repeated charge cycles and maintains stable voltage to ensure clear voice communication. The battery is shaped and sized to fit devices that specify this model and can be installed in place of the original battery to extend handset usability in office and home VoIP and DECT environments.

Advantages

The lithium chemistry delivers higher energy density and longer cycle life compared with older rechargeable battery types, allowing more talk and standby time between charges. Its compact form factor and standardized contacts make installation straightforward and reduce the need for tools. The battery provides consistent voltage output during discharge to help maintain call quality and device responsiveness. As a direct replacement, it helps avoid downtime caused by degraded or failed batteries.

Suitable for

• Cordless desk phones and handsets that accept this battery model
• Office VoIP or DECT systems requiring battery replacement
• Home cordless phone bases and handsets used for everyday voice calls
• Service technicians and IT teams performing handset maintenance

Key specifications

• Battery type: rechargeable lithium cell
• Purpose: replacement battery for compatible cordless phones and handsets
• Performance: supports multiple charge/discharge cycles for extended service life
• Form factor: compact pack with contacts arranged for direct fit into specified handsets
• Output characteristics: stable nominal voltage suitable for voice communication devices

How to use

Power down the handset before replacing the battery. Remove the battery compartment cover and extract the depleted battery following the handset manufacturer's instructions. Insert the MITEL 5614 rechargeable lithium battery with the contacts aligned to the handset connectors, then replace the compartment cover and power on the device. Charge the handset on its base or charger until the battery reaches full capacity before first use to ensure optimal performance.

Usage recommendations

For best results, use the original charger or a compatible charger specified by the handset manufacturer, avoid exposing the battery to extreme temperatures, and store it partially charged if not used for extended periods. Replace the battery if you notice reduced talk time or device instability.