FMA 14290 Ni-MH / Ni-Cd Rechargeable Battery Pack

Keep your personal care devices running at peak performance. FMA's 14290-cell battery packs are precision-built for electric razors, shavers, trimmers, and electric toothbrushes — available in Ni-MH (700mAh) and Ni-Cd (500mAh) chemistry, in 2-cell (2.4V) or 3-cell (3.6V) configurations. Custom connector arrangements available on request.

Product Specifications

Variant Overview

Package Contents

Compatible Applications

Installation Guide

Required Skills: Basic DIY ability; comfort with opening small appliances and handling soldered or plug-in connectors. No advanced electronics knowledge required for plug-in type replacements. Soldering skill needed if the original pack is wire-soldered.

  1. Power off the device — ensure the appliance is switched off and unplugged from any charging base before opening.
  2. Open the battery compartment — use a suitable screwdriver (usually Phillips #00 or #0) to remove the back cover or battery access panel.
  3. Remove the old battery pack — carefully disconnect the connector or, if soldered, note the wire polarity (+ / −) before desoldering.
  4. Verify voltage and connector match — confirm the replacement pack voltage (2.4V or 3.6V) and connector type match your device’s original specification.
  5. Connect the new pack — plug in the connector or solder the wires, observing correct polarity. Red = positive (+), Black = negative (−).
  6. Reassemble and test — replace the cover, secure all screws, then place the device on its charger for a full initial charge cycle before use.

Important Notes

Custom Connector Options

Need a specific connector type or cell arrangement? Contact us with your requirements and we will configure the pack to match your device.

Safety Information

Shipping & Transportation Notice