| OPzS Batteries - Long Life |
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Long life flooded tubular plate batteries Design life: >20 years at 20ºC, >10 years at 30ºC, >5 years at 40ºC. Cycling expectancy of up to 1500 cycles at 80% depth of discharge. Manufactured according to DIN 40736, EN 60896 and IEC 896-1. Low maintenance Under normal operating conditions distilled water has to be added every 2 3 years at 20ºC. Dry-charged or ready for use electrolyte filled The batteries are available filled with electrolyte or dry-charged (for long term stocking, container transport or air transport). Dry charged batteries have to be filled with diluted sulphuric acid (density 1,24kg/l @ 20ºC). The electrolyte may be stronger for cold- or weaker for hot climates. 
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