User's Manual

T5 High-Performance Batteries Specifications
Electrical Specifications
• Cells: The high capacity battery pack uses two lithium ion cells.
• Nominal voltage = 3.7V
• Capacity = 4400mAhr or greater
• Protection circuit characteristics: The pack contains a protection circuit that prevents over and under voltage conditions
on the cells and protects the pack from damage as a result of a short circuit between the positive and negative terminals
of the battery.
• The battery pack contains custom electronics that provide performance, temperature, and pack identification to the
device. This information is made available to voice management software.
• Battery Charging: The battery pack must be charged only in a Vocollect designated charger.
Mechanical and Environmental Specifications
• Drop-test specifications
• The high capacity battery meets the MIL STD 810F specification for shock and transient drop criteria.
• The drop-test failure criteria consists of the following:
• A split or separation of the ultrasonic weld joint greater than one linear inch
• Inability to meet open circuit voltage, serial number input, thermistor output and charge tests
• Minor cosmetic damage to the battery, such as scratches and dents, is acceptable.
• Environmental specifications: The battery pack halves are sonically welded together to protect the internals from
water and dust. The battery functions properly in the following conditions:
Temperature: -40°C to 55°C (-40°F to 131°F)
Humidity: 95% non-condensing
Rain/dust: IP67
• The pin out from left to right:
• Battery (+)
• Clock
• Data
• Battery (—)
Battery Notifications
Battery warnings for a Talkman battery occur at the following levels:
• First warning = 3,550 mV
• Critical warning = 3,350 mV
52 | OpenTopic | Batteries