Page 87 - Battery Reference Book
P. 87

Effect of  temperature on   Poor low temperature   Good low temperature   Good low temperature   Good high temperature,   Poor low tempcrature-
              service capacity                      relative to carbon-zinc                   poor low temperature-   dcpends on
                                                                                              depends on construction   construction
              Impedance          Low                Low                  Very low             Low                  Low
              Leakage            Medium under  abusive   Low             Rare                 Some salting         Some salting
                                 conditions
              Gassing            Medium             Higher than carbon-zinc   Low             Very low             Very low
              Reliability (lack of  duds   99% at 2 years   99% at 2 years   99% at 2 years   99% at 2 years       99% at 2 years
              95% confidence level)
              Shock rcsistance   Fair to good       Good                 Fair to Good         Good                 Good
              Cost
                Initial          Low                Low to medium         Medium plus         High                 High
                Operating        Low                Low to medium         Medium to high at high   High            High
                                                                          power requirements
              Features           Low cost; variety of   Service capacity at   High efficiency under   High service   Moderately flat voltage
                                 shapes and sizes   moderate to high current   moderate and high   capacity-volume  ratio;   discharge characteristics
                                                    drains greater than carbon-   continuous conditions;   flat voltage discharge
                                                    zinc; good leakage    good low-temperature   characteristic; good high
                                                    resistance; low-temperature   performance; low   temperature
                                                    performance better than   impedance
                                                    carbon-zinc
              Limitations        Efficiency decreases at                  Primary type expensive   Poor low-temperature
                                 high current drains; poor                for low drains.     performance on  some types
                                 low-temperature                          Rechargeable: limited
                                 performance                              cycle life; voltage-
                                                                          limited taper current
                                                                          charging
              Applications       Radios, barricade   Cassette players and   Radios (particularly high   Secondary voltage   Hearing-aids, referencc
                                 flashers, telephone   recorders, calculators,   current drain), bicycle   standard, television scts,   voltage source,
                                 amplifiers, marine dcpth   motor-driven toys, radios,   lights and horns,   radios, photoelectric   photoelcctric exposurc
                                 finders, toys, lighting   clocks         shavers, electronic flash,   exposure deviccs,   devices, inskuments,
                                 systems, signalling                      lighting systems, movie   walkie-talkies, paging,   electronic watches
                                 circuits, novelties,                     cameras, radio-     radiation detection, test
                                 flashlights, photo-                      controlled model plane   equipment, hearing-
                                 flashguns, paging,                       ignition, toys, tape   aids, transistorized
                                 laboratory instruments                   recorders, television   equipment, electronic
                                                                          sets, walkie-talkies,   watches
                                                                          cassette players and
                                                                          recorders, calculators,
                                                                          motor-driven toys, clocks.
                                                                          photo-flash, heavy duty
                                                                          lighting, any high-current
                                                                          drain, heavy discharge
                                                                          schedule use
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