Replacement battery Doro 1350/136x (model 134305) Lithium‑ion 800 mAh

Lithium‑ion replacement battery for Doro 1350 and Doro 136x phones, model 134305, with a nominal capacity of 800 mAh. This battery is intended to restore runtime for basic mobile phone functions such as calls, SMS and standby when the original accumulator is worn or no longer holds sufficient charge. The cell is compact and designed to fit the battery compartment of the specified Doro models and to provide reliable portable power for everyday use.

Advantages

The battery uses lithium‑ion chemistry to deliver stable voltage and predictable discharge behaviour during calling and standby periods. With an 800 mAh nominal capacity it is sized for low‑power feature phones, offering a balance between compact dimensions and usable runtime. The replacement unit is designed for straightforward installation and immediate return to regular phone operation without the need for special tools.

Suitable for

• Replacing worn or degraded batteries in compatible Doro 1350/136x phones
• Restoring daily call and SMS functionality
• Keeping a spare battery for travel or extended periods away from charging
• Basic phone maintenance and user‑level repairs

Key specifications

• Battery type: Lithium‑ion (Li‑ion)
• Nominal capacity: 800 mAh
• Intended device family: Compact feature phones (Doro 1350 / 136x series)
• Form factor: Removable battery pack sized for the specified models
• Primary use: Voice calls, messaging and standby power

How to use

Power off the phone before attempting to replace the battery. Remove the rear cover and take out the old battery following the phone manufacturer’s guidance. Insert the replacement pack aligning contacts and seating it securely, then replace the cover and power on the device. Charge the new battery fully before first use to ensure correct calibration of the phone’s battery indicator.

Usage recommendations

For safe and optimal performance, use the phone’s original or manufacturer‑approved charger and avoid exposing the battery to extreme temperatures. Store spare batteries in a cool, dry place and avoid mechanical damage or prolonged exposure to moisture. If the battery shows signs of swelling, overheating, leakage or fails to hold charge, discontinue use and replace it promptly.