Deep cycle discharge and minimal maintenance battery. Altek ABT gel batteries are 12V monoblocks. Sealed, maintenance-free batteries. This model has the following properties: fully recoverable after deep discharge can be used in low temperatures can be used in residential spaces (does not emit toxic acidic vapors) is a traction battery designed for load operation (unlike starting automotive batteries) has a high level of sealing and safety features a long service life of 10-12 years with proper use (provided that the battery is not deeply discharged beyond 70% of its capacity). Used in: uninterruptible power supply systems; wind turbine power plants; solar power plants; uninterruptible power supply systems. Dimensions – 175x166x125 mm, weight 7.4 kg. Endurance: buffer mode – discharge at 30% (2000 cycles), backup mode – discharge at 70% (800 cycles).