
Icom IC-M31 Li-Ion Battery Upgrade Pack & Charger
If you are looking to extend the life and performance of your Icom marine radio, the Icom IC-M31 Li-Ion Upgrade Pack is exactly what you need. Instead of relying on older battery chemistries, this convenient bundle provides everything required to transition your handheld device to reliable lithium-ion power, ensuring you stay connected when it matters most on the water.
What is included in this upgrade pack?
This comprehensive kit comes with the high-capacity BP-252 Li-Ion battery and a perfectly matched Li-Ion desktop charger. It is designed to be a seamless drop-in replacement and charging solution for your existing marine radio setup.
Which Icom radios are compatible with this battery?
This upgrade pack is specifically designed for a range of popular Icom marine handhelds. It is fully compatible with the IC-M21, IC-M31, IC-M33, and IC-M35 models. If you are considering upgrading your entire radio fleet alongside your accessories, you might also want to check out the newer Icom IC-M25 Euro Marine VHF Radio.
How much operating time will I get?
With the included BP-252 battery, you can expect approximately 9 hours of continuous operating time on a single charge. This ensures your radio will easily last through a standard shift or a long day out at sea.
What are the technical specifications?
- Battery Model: BP-252
- Battery Chemistry: Lithium-Ion (Li-Ion)
- Estimated Battery Life: Up to 9 hours
- Weight: 0.385 kg
- Intended Use: Marine environments

