Batteries BT series

Our long-standing experience with emergency power systems and uninterruptible power supply units is our guarantee for the highest quality and reliability of EFFEKTA® batteries.

EFFEKTA® batteries are modern AGM (Absorbent Glass Mat) accumulators. Low levels of self-discharge are achieved by bonding the electrolyte in glass-fibre mat. A recharge is needed every six months unless the accumulator was stored at temperatures in excess of 20°C. AGM batteries are leak proof and can be installed in almost any location.

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  • Fully maintenance-free
  • Excellent high-current capability
  • Classified as non-dangerous in accordance with IATA
  • Cycle-resistant
  • Robust construction
  • Location-independent
  • Valve-regulated plastic container as overload protection
  • 6 months warranty

Ideally suited for use in

  • Uninterruptible power supplies (UPSs)
  • Telecommunications systems
  • Fire alarm and safety systems
  • Medical equipment


TypeVoltage in (V)Capacity
in Ah (C20)
L (mm)W (mm)H (mm)H (mm)
in kg
12 V types
BT 12-1,2121.2974352580.6F1
BT 12-2,3122.317834.560.566.50.97F1
BT 12-2,8122.8104.547.569.569.51F2/F1
BT 12-3,2123.2134.56759.565.51.3F1
BT 12-512590701011071.7F2/F1
BT 12-7 (VdS)12715165951012.26F2 / S type: F1
BT 12-9,5K129.515165951012.63F2
BT 12-12 (VDS)121215198951013.6F2
BT 12-181218181771671675F3
BT 12-18i1218181771671675F13
BT 12-201220181771671675.9F3 / F13
BT 12-2812281661751251258.6F13
BT 12-28S12281661261741748.6F11
6 V – types
BT 6-3,263.21343460.566.50.65F1
BT 6-1261215150951001.8F2 / F1

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