我什么时候该换一个HAWKER 电池?
A Hawker® battery is considered to be at the end of its expected operation life when one or more of the following applies:
during an Open Circuit Voltage (OCV) test, a fully-charged battery measures less than 12.65 volts, then the battery should be replaced, and/or
during a Capacity test, a fully-charged battery fails to provide at least 80% of the battery’s rated Capacity when discharged at a specified C-rate (e.g., for a Hawker® ARMASAFE™ Plus 6TAGM battery, when discharged at the C20 rate, if the battery measures less than 96 Ah, then the battery should be replaced.), and/or
during a conductance analysis test, a fully-charged battery fails to provide at least 80% of the battery’s rated CCAs (e.g., if a Hawker® ARMASAFE™ Plus 6TAGM battery measures less than 980 CCAs, then battery should be replaced), and/or
during a mechanic’s load test, a fully-charged battery fails to remain above 9.9 volts Closed Circuit Voltage (CCV; a.k.a., load voltage) during the load test. The specified load should be equal to 1/2 of the battery’s rated CCAs and be applied for 15 seconds (e.g., for a Hawker® ARMASAFE™ Plus 6TAGM battery, apply a 612.5 amp load for 15 seconds, during which the battery’s load voltage must remain at 10.0 volts CCV or higher, if not, then the battery should be replaced. Note: Per TB 9-6140-252-13, military personnel are only required to apply a 550-amp load on the Hawker® ARMASAFE™ Plus 6TAGM battery, since MIL-PRF-32143C only requires a new 6TAGM battery to be at least 1100 CCA).
However, though a battery passes the OCV test and one or more of the other three above tests, be careful not to mix identical batteries that have developed significantly different capabilities (usually, the result of plate sulfation as batteries age). For example, in a parallel, series, or series-parallel configuration:
during an Open Circuit Voltage (OCV) test, ensure all fully-charged batteries are within a 0.15 volt OCV range of each other (e.g., if the highest battery measures 12.9 volts OCV, then the lowest battery should measure no less than 12.75 volts OCV.), and
during a Capacity test, ensure all fully-charged batteries are within a 10% Ah range of each other when discharged at a specified C-rate (e.g., if the highest Capacity battery measures 120 Ah (C20), then all batteries should be within 12 Ah range of each other, so the lowest Capacity battery should measure no less than 108 Ah (C20)), or
during a conductance analysis test, ensure all fully-charged batteries are within a 10% CCA range of each other (e.g., if the highest battery measures 1225 CCAs, then the lowest battery should measure no less than 1102.5 CCAs), or
during a mechanic’s load test, ensure all fully-charged batteries are within a 0.4 volt CCV range of each other (e.g., if the highest battery measures 11.2 volts CCV, then the lowest battery should measure no less than 10.8 volts CCV).
我什么时候该换一个HAWKER 电池?
A Hawker® battery is considered to be at the end of its expected operation life when one or more of the following applies:
during an Open Circuit Voltage (OCV) test, a fully-charged battery measures less than 12.65 volts, then the battery should be replaced, and/or
during a Capacity test, a fully-charged battery fails to provide at least 80% of the battery’s rated Capacity when discharged at a specified C-rate (e.g., for a Hawker® ARMASAFE™ Plus 6TAGM battery, when discharged at the C20 rate, if the battery measures less than 96 Ah, then the battery should be replaced.), and/or
during a conductance analysis test, a fully-charged battery fails to provide at least 80% of the battery’s rated CCAs (e.g., if a Hawker® ARMASAFE™ Plus 6TAGM battery measures less than 980 CCAs, then battery should be replaced), and/or
during a mechanic’s load test, a fully-charged battery fails to remain above 9.9 volts Closed Circuit Voltage (CCV; a.k.a., load voltage) during the load test. The specified load should be equal to 1/2 of the battery’s rated CCAs and be applied for 15 seconds (e.g., for a Hawker® ARMASAFE™ Plus 6TAGM battery, apply a 612.5 amp load for 15 seconds, during which the battery’s load voltage must remain at 10.0 volts CCV or higher, if not, then the battery should be replaced. Note: Per TB 9-6140-252-13, military personnel are only required to apply a 550-amp load on the Hawker® ARMASAFE™ Plus 6TAGM battery, since MIL-PRF-32143C only requires a new 6TAGM battery to be at least 1100 CCA).
However, though a battery passes the OCV test and one or more of the other three above tests, be careful not to mix identical batteries that have developed significantly different capabilities (usually, the result of plate sulfation as batteries age). For example, in a parallel, series, or series-parallel configuration:
during an Open Circuit Voltage (OCV) test, ensure all fully-charged batteries are within a 0.15 volt OCV range of each other (e.g., if the highest battery measures 12.9 volts OCV, then the lowest battery should measure no less than 12.75 volts OCV.), and
during a Capacity test, ensure all fully-charged batteries are within a 10% Ah range of each other when discharged at a specified C-rate (e.g., if the highest Capacity battery measures 120 Ah (C20), then all batteries should be within 12 Ah range of each other, so the lowest Capacity battery should measure no less than 108 Ah (C20)), or
during a conductance analysis test, ensure all fully-charged batteries are within a 10% CCA range of each other (e.g., if the highest battery measures 1225 CCAs, then the lowest battery should measure no less than 1102.5 CCAs), or
during a mechanic’s load test, ensure all fully-charged batteries are within a 0.4 volt CCV range of each other (e.g., if the highest battery measures 11.2 volts CCV, then the lowest battery should measure no less than 10.8 volts CCV).