NBC 15-12L NBC series is specially designed for frequent deep cycle discharge. By using the specially designed active material and strong grids, the NBC series battery offers reliable performance in high load conditions. Suitable for any kind of power-driven vehicles, especially for scooters, wheelchairs etc. Specification Number of cells 6 Voltage 12 V Capacity 15 Ah at 20 h discharge down to 1.8V by cell at 25C Weight approx. 4,5 kg Max discharge current 140 A (5 s) Internal resistance approx. 12 m Working temperature Discharge: -20C 60C Charge: 0C 50C Storage: -20C 60C Optimum working temperature 25C5C Max. Charge current 4,2 A Charge voltage 14,6 14,8 VDC for cyclic work at 25C Self-discharge Batteries may be stored for a period longer than 6 months at 25C. Before use please charge batteries. Terminal Connector 6,3 mm Case material A.B.S. (UL94-HB), fire resistance UL94-V-0 optional Dimensions length / width / height / total height mm : 151 / 98 / 99 / 105 NBC 15-12L Constant current characteristics: A at 25 C Voltage / 5 min 10 min 15 min 30 min 1 h 2 h 3 h 4 h 5 h 8 h 10 h 20 h Time 9,6 V 58,53 38,37 25,58 15,21 9,65 5,85 3,89 3,17 2,60 1,66 1,45 0,79 10,0 V 56,42 37,42 27,67 15,02 9,52 5,74 3,81 3,12 2,58 1,65 1,43 0,76 10,2 V 53,10 35,56 26,90 14,79 9,43 5,68 3,78 3,09 2,56 1,64 1,42 0,75 10,5 V 47,73 33,26 25,37 14,38 9,31 5,60 3,75 3,04 2,53 1,64 1,40 0,72 10,8 V 42,77 31,01 23,94 13,66 9,11 5,56 3,70 2,94 2,52 1,63 1,37 0,69 11,1 V 37,42 28,43 22,08 13,38 8,75 5,33 3,63 2,90 2,50 1,62 1,36 0,67 Constant power characteristics: W at 25 C Voltage / 5 min 10 min 15 min 30 min 1 h 2 h 3 h 4 h 5 h 8 h 10 h 20 h Time 9,6 V 634,80 420,80 315,40 174,20 111,80 70,02 46,47 37,89 31,16 19,83 17,33 9,45 10,0 V 618,30 412,10 310,90 172,30 110,20 68,52 45,71 37,35 30,88 19,77 17,17 9,12 10,2 V 588,10 395,70 306,80 170,90 109,40 67,96 45,31 37,01 30,70 19,70 17,00 8,95 10,5 V 536,80 379,40 290,80 167,40 107,90 67,18 44,98 36,51 30,45 19,63 16,83 8,61 10,8 V 484,30 354,90 275,00 160,90 107,90 66,63 44,46 35,27 30,31 19,55 16,48 8,26 11,1 V 427,00 330,50 258,80 158,90 104,20 64,03 43,59 34,77 30,20 19,47 16,30 8,10