User's Manual

T2 Series High Capacity Battery Specifications
Electrical Specifications
• Cells: The high capacity battery pack uses four lithium ion cells.
• Nominal voltage = 7.2V
• Capacity = 3000mAhr 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.
• Thermistor: The battery pack contains a negative temperature coefficient thermistor. The charger uses the voltage
drop across the thermistor to determine that the battery pack is within the proper charging temperature limits.
• Battery ID: The battery pack contains a Dallas Semiconductor DS2401 serial ID chip. In future enhancements to
both the device and the device software, this chip will be used to provide data about features such as battery life,
capacity monitoring and asset tracking.
• Battery Charging: The battery pack must only be charged 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: -4°F to 122°F
Humidity: 95% non-condensing
Rain/dust: IP67
• The pin out from left to right (when looking at the contacts with the battery's label facing down) is as follows:
• Battery +
• Thermistor
• ID Data
• Battery -
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