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BT-70747BG (BB-2847A/U) zoom

  • BT-70747BG (BB-2847A/U)

High Capacity BB-2847A/U Rechargeable Lithium-Ion Battery, for thermal sights and more (BB-2847A/U)


The first lithium-ion battery approved for use in combat operations. Typically used in AN/PRM-34 (Radio Set), AN/PRS-7 (Mine Detector) and AN/PAS-13 (Thermal Weapon Sight). Additional capacity versions available.

  • Military#: BB-2847A/U
  • NSN: 6140-01-493-8092 (BT-70747BK)
  • Chemistry#: Li-ion
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  • ● Complies with SMBus v1.1 and SBData v1.1

    ● UN/DOT 38.3 Rating: 73 Wh

    ● Comparable to: BB-2847A/U, BA-5347/U, BT-70747, BT-70747A, BT-70747Bx, BT-70478, and BT-70478A

    ● Absolute state of charge indicator


    Typically used in:

    ● Radio Set (AN/PRM-34)

    ● Mine Detector (AN/PRS-7)

    ● Thermal Weapon Sight (AN/PAS-13)

Size / Weight

  • Length

    2.55 +/- 0.031 in (64.77 +/- 0.79 mm)

  • Width

    1.50 +/- 0.031 in (38.10 +/- 0.79 mm)

  • Height

    3.75 +/- 0.031 in (95.25 +/- 0.79 mm)

  • Weight

    0.84 lb (0.38 kg)


  • SMBus


  • State of Charge Indicator


  • Connector

    2 Hole Socket and Flat Contacts

  • Voltage

    7.2 V

  • Maximum Voltage

    8.4 V

  • Capacity

    9.3 Ah

  • Storage Temperature

    -40°C to +40°C (-40°F to +104°F)

  • Operating Temperature

    -20°C to +60°C (-4°F to +140°F)

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