Yaesu SBR-52LI High-Capacity Li-ion Battery Pack
  The Yaesu SBR-52LI is a high-capacity 6400mAh Li-ion battery pack designed
  specifically for the Yaesu FTX-1 Field portable transceiver.
Key Features
  - 
    High Capacity: With a 6400mAh rating, it provides
    extended operating time for the FTX-1 Field, allowing for approximately 9
    hours of operation on HF bands (SSB) and 8 hours on V/UHF bands (FM) with
    a 6-6-48 duty cycle. This is ideal for extended field operations or when
    access to power is limited.
  
- 
    Compatibility: It is the standard battery supplied with the
    Yaesu FTX-1 Field, ensuring a perfect fit and reliable performance.
  
- 
    Recharging: The SBR-52LI can be recharged separately using
    a third-party USB Type-C PD (Power Delivery) cable with specifications of
    45W or greater / 15V 2A. This offers a convenient and widely available
    charging method.
  
- 
    In-Radio Charging: When the FTX-1 Field is connected to an
    external 13.8V DC power supply, the SBR-52LI battery is charged
    automatically within the transceiver.
  
- 
    Voltage: It operates at a nominal voltage suitable for the
    FTX-1 Field's power requirements, enabling its 6W (5W QRP) output on
    battery power and up to 10W output with an external DC supply (while also
    charging the battery).
  
- 
    Lightweight and Portable: As a Li-ion battery, it offers a
    good balance of high energy density and relatively low weight, crucial
    for portable operations.
  
  The Yaesu SBR-52LI is an essential accessory for Yaesu FTX-1 Field owners
  who need long-lasting power for their portable operations. Its high capacity
  and convenient charging options make it a reliable power source in various
  field environments.