23-2A-30C ni-cd size : 2/3aa specification type : rechargeable nickel cadmium battery dimension d............................................................. 14 0.2mmd........................................................... 8.0 0.2mm h.......................................................... 28.0 0.5mm nominal v oltage ................................................. 1.2v weight ............................................................... ~12g internal resistance at 1000hz..................................................... ~40m capacity rated capacity...............................................300mah1) at 0.2c discharge...100%~105% of rated capacity. 2) at 0.5c discharge........95~100% of rated capacity. 3) at 1c discharge.............90~95% of rated capacity. 1) slow charge 30ma x 15hrs. (0-45 c) t o avoid overcharge, a timer is used to terminate the charging after 150% capacity input. 2) normal charge 150ma x 3hrs. (1 0-40 c) t o avoid overcharge, a timer is used to terminate the charging after 150% capacity input. in addition, a temperature cut off (tco) device, i.e. thermostat, with cut off temperature at 55 c must be used for safety purpose. 3) quick charge 300ma x 1.2hrs. (10-40 c) with char ging current over 0.5c a, a joint use of dt or - v cut off is required. for dt contr ol, a maximum allowable temperature rise is 1 c/min. or if - v control is used, the maximum allowable voltage decrease is 10 mv/cell. tco device with cut off temperature at 60 c should be used at the same time. storage: 1) storage t emperature........................-10 c to 45 c remark: weight and internal impedence ar e for reference only . 2c rate discharging curves 0.5c / 1c rate discharging curve 0.5c / 1c rate charging curves v o l t s 0 0 . 2 0 . 4 0 . 6 0 . 8 1 1 . 2 1 . 4 1 . 6 0 2 0 4 0 6 0 8 0 1 0 0 1 2 0 c a p a c i t y % 1c 0.5c (with jacket) d d h v o l t s 0 0 . 2 0 . 4 0 . 6 0 . 8 1 1 . 2 1 . 4 1 . 6 1 . 8 0 2 0 4 0 6 0 8 0 1 0 0 1 2 0 1 4 0 c a p a c i t y % 1c 0.5c v o l t s 0 0 . 2 0 . 4 0 . 6 0 . 8 1 1 . 2 1 . 4 1 . 6 0 5 1 0 1 5 2 0 2 5 c a p a c i t y % 0.2c
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