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The TWSBATT 100-12 is a 12V valve-regulated lead-acid (VRLA) battery for the TWS 290 Public Warning System.

TWSBATT 100-12

  • Nominal voltage


    Nominal capacity (10HR)

    Approx 28.5 kg (62.8lbs)
    Container material


    Rated capacity

    100.0 AH/10.0A (10hr, 1.80V/cell, 25°C/77°F)

    Max. discharge current  1200 A (5s)

    Internal resistance

    Aprox 4.8mΩ

    Temp. range

    Standard operating: -15~50°C (5~122°F)
    When paired with our temp. compensating charger TWS-BATTCH:
    Extended Operating: -35~60°C (-31~140°F)

    Cycle use

    Initial Charging Current less than 30.0A. Voltage
    14.4V~14.0V at 25°C (77°F) Temp. Coefficient -30mV/°C

    Standby use

    No limit on Initial Charging Current Voltage
    13.5V~13.8V at 25°C (77°F) Temp. Coefficient -20mV/°C

    Capacity affected by temperature

    40°C (104°F) 103%
    25°C (77°F) 100%
    0°C (32°F) 86%

    Self discharge

    TWSBATT 100-12 batterys may be stored for up to 6 months at 25°C(77°F) before a recharge is required. For higher temperatures the time interval will be shorter.

  • Length: 330 mm (12.99”)
    Width: 173 mm (6.81”)
    Container height: 212 mm (8.35”)
    Total height: 220 mm (8.66”)

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