Page 513 - Battery Reference Book
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Standby power batteries  5015
     Table 50.3 Chloride Motive Power range of Classic 15 motive power batteries
      Total height   Cell box   Chloride   5 h capacity   Cell dimensions   Filled   Charge current
     over standard   height    type     at 30°C (Ah)      (mm)        weight   (A) at 2.1 Vlcell
     terminal take-   (mm)
       off (mm)                                      length   Width    (kg)    12h*    8h*
        367         328      XWAF7         195        65      198.5    11.9     27      37
                             XWAF2 1       650        191     198.5    37.3     91     123
        427         388      XWBF7         240        65      198.5    14.3     34      46
                             XWBF9         320        83      198.5    18.7     45      61
                             XWBFll        400        101     198.5    23.5     56      76
                             XWBF13        480        119     198.5    21.5     67      91
                             XWBF15        560        137     198.5    32.7     78     106
                             XWBF17        640        155     198.5    36.5     90     121
                             XWBF19        720        173     198.5    40.6     101    136
                             XWBF21        800        191     198.5    44.9     112    152
        502         463      XWCF7         275        65      198.5    16.8     39      52
                             XWCF21        920        191     198.5    52.9     130    175
        588         548      XWEF7         345        65      198.5    19.4     48      66
                             XWEF21        1150       191     198.5    62.3     160    220
        746         707      XWFF7         435        65      198.5    26.3     61      83
                             XwFF2  1      1450       191     198.5    81.7     203    275
        435         402      XILM          162        61.5    I58      10.8     23      30
                             XILF25        848       205.5    158      39.1     90     120
        487         454      XTLF7         189        61.5    158      12.4     26      35
                             XTLF25        756       205.5    158      44.7     105    140
        547         515      XTHF7         219        61.5    158      14.2     30      40
                             XTHF25        876       205.5    158      51.7     123    162
        650         617      XTOF7         25  8      61.5    158      16.4     36      50
                             XTOF25        1032      205.5    158      59.5     144    200
        728         696      XTEF7         297        61.5    158      19.0     42      55
                             XTEF25        1188      205.5    158      67.7     167    220
        249         216      XBKF7          63        61.5    158       5.5      9      12
                             XBKF25        252       205.5    158      19.1     35      48
        293         260      XXVF7          86        61.5    158       6.6     12      16
                             XXVF25        342       205.5    158      23.5     48      65
        357         324      XIMF7         I 20       61.5    158       8.5     17      23
                             XIMF25        480       203.5    158      30.3     67      91
     Taper characteristic 2.67: 1 between 2.1 and 2.6 Vicell.


     attention. A  simple hydrometer reading  indicates  the   of  the  charging  equipment  to  a  lower  value  than
     state of  charge.                           2.70 V/cell,  2.4 V/cell  being  the  minimum  desirable
       A fully charged cell will have a specific gravity of   value. This will result in an extended recharge period,
     between  1.205 and  1.215.                  as the battery will automatically limit the charge cur-
       The  ampere  hour  efficiency  of  the  cells  is  90%;   rent irrespective of the charger output.
     therefore, on recharge, the amount of recharge required   Chloride  Industrial  Batteries  Supply  Super  Plant6
     is equal to the discharge in ampere hours plus 11%. A   type high-performance cells, type YCP-H, available in
     YAP 9 cell discharged at the 1 h rate (18 A for 1 h) will   capacities up to 500 Ah (Table 50.8).
     require a minimum of  18 + ll%, i.e. 20Ah recharge.   This range of batteries is particularly suitable for any
     At the finishing rate of charge (2 A), this will take 10 h.   standby  application calling  for  a  good  high-rate  dis-
     It is possible to recharge in a shorter time by  starting   charge characteristic. Such applications include elec-
     the charge at the ‘starting rate’, as given in the capacity   tronic  computer  and  telecommunications  equipment,
     tables, but this should be reduced to the finishing rate   which requires a no-break  ‘clean’ power  supply free
     of  charge when the voltage per cell reaches 2.3 V.   from  voltage  surges,  frequency  variations  and  other
       On  recharge,  the  voltage  increases  as  the  charge   transients.
     proceeds. The highest voltage reached with the finish-   To achieve this the power supply is usually obtained
     ing rate of charge flowing is approximately 2.70 V/cell.   through  a  no-break,  static  inverter  or  a  no-break
     It is possible to recharge a cell by limiting the voltage   rotary set.
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