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Table 14-3. Equalizing charge Battery voltage Battery voltageLength of monthly per cell (volts)for 60 cells (volts)Charge (hours) 2.42...............145 ...............3 to 8 2.39...............143 ...............4 to 12 2.36...............142 ..............6to 16 2.33...............140...............8 to 24 2.30...............138...............11 to 34 Section IV-VALVE-REGULATED LEAD-ACID CELL BATTERIES 14-13. Valve-regulated cell differences. Valve-regulated sealed lead-acid cells are not installed in transparent jars like traditional cells. Plates are not visible, and the electrolyte is not accessible. a.Maintenance. These batteries are neither sealed nor maintenance-free. The cell cannot be considered sealed as a pressure relief valve is provided to open when the cell's internal pressure exceeds a set limit. Once the pressure is relieved the valve closes and reseals. Cell which do not reseal but leak may require replacement. For this type of construction there is no need to check the electrolyte level nor the specific gravity of each cell. Other battery maintenance requirements are still necessary, such as visual inspection, cleanliness, cell voltage resistance, charging, capacity testing, and others previously covered. Easy Access To All Pages 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 |
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