The BPK 221 batteries are rechargeable Polymer Lithium Ion (PLI) batteries that provide power supply to handheld radios with higher autonomy for small size and low weight.

The battery include in a aluminum hard shell :

• Six PLI cells, ( 3 cells in parallel and 2 in series (3p2s).
• One circuitry for electronic protections and cells balancing for optimal charge.

The upper connector is composed of 2 female sockets for the connection (+ and -) to the handheld radio or to a BCH221charger. The connector shape forbids use on other chargers.

• Electrical characteristic:
  • Rated voltage: 7.4V.
  • Rated capacity: > 2.7 A.h in T° range: +10°C to +60°C; 80% derating at -10°C.
  • Charging: <4h at C/2 : T° range: -10°C, +60°C.
  • Protections: The battery is protected against short-cuts, over currents, polarity reversal, as well as against over-charge, over-discharge, and over-temperature.

• Mechanical characteristics:
  • Dimension:
    - Height: 60mm.
    - Width: 68mm.
    - Depth: 39mm.
  • Weight: < 250g.
  • Colour: NATO IR Army Green; BPK 221
                SAND color: BPK 221-S
  

• Environmental characteristics:
  • Compliant to MIL-STD 810E for climatic and mechanical conditions:
    - Operating temperature: -20°C, +60°C.
    - Charging temperature range: -10°C, +60°C.
    - Storage T°: -40°C + 70°C.
    - Transportation and operations vibrations, Shocks @ MIL-STD 810E.
    - Drops: 26 from 1.2m height on to wooden board @ MIL-STD 810E.
    - Watertightness: under 1m water height during 2 hours.
    - Air transport; Frost and condensation; Salt spray, Humidity, Solar radiation.
  • Compliant to MIL-STD 461D for EMC / EMI conditions.

• Storage:
  • The battery has to be stored half charged, in +5°C to +25°C dry atmosphere.
  A yearly maintenance charge is required.