System information

Chapter 11 ‒ Axient Rechargeable Battery System
Lithium-ion Charge Cycle
Effects of Temperature on Battery
Performance
Battery Safety Features
Storing Batteries
Battery Runtime
AXT100 Runtime
RF Power (mW) Runtime ShowLink Enabled (hours/minutes) Runtime Without ShowLink (hours/minutes)
10 7:30 8:00
100 5:35 6:05
AXT200 Runtime
RF Power (mW) Mode
Runtime ShowLink Enabled
(hours/minutes)
Runtime Without ShowLink
(hours/minutes)
10 Single Carrier 9:05 10:00
Frequency Diversity 6:15 6:45
50 Single Carrier 6:45 7:15
Frequency Diversity 4:20 4:40
Axient lithium-ion rechargeable batteries use advanced chemistry that maximizes transmitter runtime with zero-memory
effect. Axient power management provides detailed visibility to critical battery parameters such as health, charge status,
temperature and cycle count. Batteries can be charged to 50% capacity in one hour and to full capacity in three hours.
The AXT910 battery powers the AXT100 bodypack transmitter and the AXT920 battery powers the AXT200 handheld
transmitter.
The batteries charge in a logarithmic curve, resulting in
quick initial charging, followed by gradual charging to
maximize battery lifetime and health. A battery charge
cycle consists of one charge and discharge.
Batteries have an operating range of 0°C to 60°C (32°F to
140°F). The internal temperature of the battery has an effect
on overall battery performance. Battery runtime will decrease
when the battery is cold. At warmer temperatures, battery
runtime increases with a negative effect on overall battery
health.
Shure rechargeable batteries incorporate the following
features to provide safety and protect battery health:
• Internal protection circuit stops charging and
discharging when the battery is too hot
• Monitoring circuit limits negative health effects
of over-voltage, over-current, and under-voltage
conditions
• Recovery mode for deep discharged batteries
terminates charge if voltage does not increase within
30 minutes
• Internal timer stops charging if full capacity is not
achieved within 4.5 hours
When batteries are not going to be used for longer periods
of time, they should be stored at an ideal voltage of 3.8 volts
to maintain optimal health. The AXT900 Rackmount Charger
has a Storage Mode function that when activated, will charge
or discharge a battery to 3.8 volts.
For long term storage (more than 8 days), remove the
batteries from the charger, and place them in a temperature
controlled storage area. To avoid degrading battery health,
keep the storage temperate range between 10°C to 25°C
(50°F to 77°F).
Battery runtime varies according to the transmitter's operating mode. High power settings will reduce battery runtime.
Operating an AXT200 transmitter in frequency diversity mode reduces runtime. Remaining battery runtime is shown on
the transmitter display in hours and minutes (accurate to within 15 minutes).
The times shown in the tables represent a battery with a minimum of 5 charge cycles, fully charged, at 100% health.
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Part 2: System Setup and Configuration