User's Guide

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(2) Do not use at extreme temperatures. The receiver is designed to operate at
-40 °C to +65 °C (-40 °F to +149 °F). However, operation at temperatures of less
than 0 °C (32 °F) can cause a rapid drop in battery life.
3.4 Charging the Battery
The rechargeable Lithium-ion battery is supplied partially charged. Charge the
battery completely before using it for the first time. If the battery has been stored
for longer than three months, charge it before use.
When connected to a suitable power source, the internal battery charges fully in 10
hours.
WARNING – Charge and use the rechargeable Lithium-ion battery only in strict
accordance with the instructions. Charging or using the battery in unauthorized
equipment can cause an explosion or fire and can result in personal injury and/or
equipment damage.
To prevent injury or damage:
(1) Do not charge or use the battery if it appears to be damaged or leaking.
(2) Charge the Lithium-ion battery only within the P5 receiver. The battery can only
be removed by an authorized CHC Service Center.
3.5 Storing the Battery
The internal Lithium-ion battery adopts a self-protection mechanism that protects
the battery from discharge when its voltage is below 6 V and shuts down the
receiver. The internal battery will be activated when charged by the external power
supply.
Do not store the receiver at temperatures outside the range -40°C to +85 °C (-4 0°F to
176°F).
The receiver is supplied with a mains power supply unit that recharges the battery
inside the receiver when it is connected through the adaptor to either of the LEMO
ports. When the user uses the receiver in a long-term installation, CHC recommends
that the user use this power supply or another that provides at least 12 V DC at all
times to keep the internal battery charged. This will ensure that the internal battery
provides an uninterrupted power supply that will keep the receiver operational for
up to 24 hours after a power failure.