Информационное Руководство для Conrad Energy 12V Ah lead acid battery, 250226

—    Recharge amount 1.1 1.2 times of the discharged capacity upper level of recharge amount 

is selected when ambient temp. below 5 . If discharge capacity is not sure, recharge the 
batteries as table four  

               Table four   

Ambient temp.

 

Charging voltage

V/cell  

Charging time h  

2.31 7 

5 

2.46 4 
2.25 7 

20 

2.40 4 
2.21 7 

35 

2.34 4 

&       Note  

1 Charging time in table four means charging period after voltage reach the specified value, 
initial max. current is less than 0.03C. 
2 Follow above charging specifications, otherwise batteries will be overcharged or 
undercharged, service life of batteries will shorten.  
3 Charge the batteries as per cyclic charging parameters after capacity test discharge. 

  

 Cautions 
—    Measure the output voltage of equipment once every 2 hours for new installations for the 

initial 72 hours, to make sure the stable output of charging voltage. The output voltage 
should also be confirmed during yearly maintenance check preventing the deviations due to 
aging. 

—     If a current value at final charging stage is over 0.05C

10

A, damage on battery service life 

may occurred. 

—     For cycle charging, timer is recommended to switchover to trickle charging mode, 

preventing over-charging.  

—     For temperature other than 25

charge voltage setting need to be compensated as 

formula  

U

T

U

25

-K× T-25

T—actual temperature K—compensation coefficient  

—     Judging on completion of charging 

When one of the following conditions occurs, charging is considered be completed. 
1 Charging amount reaches 1.1 1.2 times of discharged value. 
2 Charging current is less than 0.005C

10

A at final stage of charging. 

3 Charging current keeps stable for 3 hours.