Replacement Battery FRITZ for Fritz!Fon X6 model 312BAT030, Li-ion cordless phone battery

Replacement Li‑ion battery designed for the Fritz!Fon X6 cordless phone. This FRITZ battery restores original runtime and provides stable power for calls, standby and handset functions, matching the form factor and connector of the Fritz!Fon X6 to ensure a direct fit and reliable operation.

Advantages

The FRITZ replacement battery delivers the expected voltage and capacity characteristics of a Li‑ion cell suited for consumer DECT handsets, offering consistent discharge behavior, low self‑discharge and a compact, lightweight design that maintains the handset’s ergonomics. It is made to replace worn or degraded cells, restoring usable talk and standby time without requiring changes to the handset.

Suitable for

• Replacing an aging or failing battery in a Fritz!Fon X6 cordless handset
• Maintaining reliable power for daily home or small office phone use
• Restoring handset availability after noticeable runtime reduction

When it may not be suitable

This replacement battery is intended specifically for the Fritz!Fon X6 form factor and connector. It may not be compatible with other cordless handset models or brands that use different shapes, contact arrangements or voltage requirements. If the handset has physical damage to the battery compartment, connectors or charging contacts, installing a new battery may not resolve charging issues.

Key specifications

• Chemistry: Lithium‑ion (Li‑ion)
• Function: Rechargeable handset battery for cordless phone use
• Compatible device type: DECT cordless handset matching the Fritz!Fon X6 battery bay
• Typical performance: Restores original talk and standby characteristics typical for the handset design
• Physical design: Compact cell assembly sized to the Fritz!Fon X6 battery compartment

How to use

Power the handset off, remove the battery compartment cover and extract the old battery. Insert the replacement FRITZ Li‑ion battery in the correct orientation, ensuring contacts align with the handset terminals, then replace the compartment cover. Place the handset on its charger and allow a full charge cycle before normal use to calibrate charge indicators and achieve optimal runtime. Follow the handset manufacturer’s instructions for battery handling and initial charging.

What to consider before purchase

• Confirm physical compatibility with the Fritz!Fon X6 battery compartment and contact layout
• Ensure the replacement chemistry (Li‑ion) matches the handset requirements
• Check handset condition—damaged connectors or charging circuitry may require repair instead of battery replacement

Usage recommendations

Charge fully before first use, avoid prolonged exposure to high temperatures, and store in a cool, dry place if not used for extended periods. Replace the battery at the first sign of significantly reduced talk or standby time to maintain reliable cordless phone availability.