Cyclic or maintenance charge
Cyclic charging is used when the accumulator is used for higher output. In such cases the accumulator should be recharged as soon as possible after use . Maintenance charging is when a relatively weak and slow charge that is suited to when the accumulator is to be used in an interruption to the regular power supply. The lifecycle of this type of use is 3-5 years.
The charge voltage shall lie somewhat than the accumulator's nominal voltage. Lead accumulators need time to take their charge. Consequently the charge current that is supplied in cyclic operation should not be greater than 30 % of the accumulator's capacity value, stated in Ah. Those lead accumulators which constantly take a charge to be start-ready in an emergency situation, are charged with a charging current which is 5 % of the accumulator's capacitance value. At low temperatures the charging time must be increased.
Lead accumulators are suited to considerable short-term discharges. The continual current loss should not exceed the capacity by more than three times, but a lead accumulator copes with 15 times its own capacity for around five seconds.
All prices include lead and environmental charges.