- mounting orientation free available (not standing on top)
 - impact resistant and break-proof plastic housing made of ABS
 - VdS/UL-approval
 - plug valve controlled construction, nearly 100% oxygen recombination at each charging process
 - Electrolyte is bound in glass fiber mat
 - refilling of electrolyte is not necessary
 - non-corroding high power grid plates with lead-calcium corrosion
 - operational temperature range at corresponding voltage compensation depending on temperature
 - excellent charging efficiency
 - no dangerous good according to IATA
 - conformity to EN 61056-2
 - long life duration at low self discharge, 3% each month at 20°C