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Control Boxes with Battery Back Up Only
The charging current/time by use of the battery back-up.
Example BA1800: Maximum charging current = 0.25 X battery capacity (Ah)
BA1800: 0.25 x 1.2 = Approx. 0.3 A.
Charging time: Approximately 1.2 Ah: 0.3 A = Approx. 4-5 hours.
Example BAJ1/2: Maximum charging current = 0.25 x 2.9 Ah = Approx. 0.7 A
Charging time: Approximately 2.9 Ah : 0.7 A = 4 – 5 hours
Please observe the curve below or see further information regarding battery characteristics in Figure 1 and 2.
Charging characteristics:
• In theory, if the battery capacity is approximately 0% it takes about 4-5 hours to reach 80% of the battery
capacity level.
• We recommend a charging time up to approximately 10 hours which gives 100% capacity.
• At 100% capacity the battery will not discharge as quickly as it would at 80% capacity.
• The internal and external battery charging characteristics are identical.
• The battery alarm on a LINAK CB will activate at approx. 18 V. The charging of the battery must be started
before reaching this level to maintain as long a battery life as possible.
• We therefore recommend you always to have the control box plugged to the main power, to keep the
batteries fully charged.
Battery Capacity (%)
80% capacity ~ up to 4-5 hours charging time
depending on the level of discharging
100% capacity ~ up to 10 hours charging time
depending on the level of discharging
Battery Charging Characteristics
Charging Time
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