This chapter provides instructions for performing field maintenance on the collector or
repeater battery. The following sections describe storing and charging spare collector and
repeater batteries, and replacing a collector or repeater battery in the field.
Shipping Requirements
Warning! Electrical fire hazard—protect against shorting.
Terminals can short circuit and cause a fire if they are not insulated during
shipping.
Requirements for shipping batteries:
• Batteries must be labeled "NONSPILLABLE" during shipping. Follow all federal shipping
regulations. See CFR 49 Parts 171 through 180, available online at www.gpoaccess.gov.
• Batteries must have short circuit protection during shipping. Exposed terminals, connectors, or
lead wires must be insulated with a durable inert material to prevent exposure during shipping.
Failure to comply with these requirements can cause a fire during shipping and
handling.
Battery Storage and Charging
To ensure maximum lifespan and efficiency from your collector or repeater batteries,
Itron recommends the following storage and maintenance procedures.
Long-Term Storage
Batteries may be stored for up to two years at room temperature (25°C or 77°F), and then
may be recharged with no loss in cell reliability or performance capabilities. The
following storage time versus temperature chart is a plot of maximum storage time as a
function of storage temperature. This curve shows the maximum number of days at any
given temperature, from 10°C (50°F) to 65°C (149°F), for the battery to discharge from a
fully charged state of about 6.42 volts (2.14 volts per cell) down to a zero charge state of
5.79 volts or (1.93 volts per cell). Do not allow the battery to discharge below 5.79 volts.
A battery discharge below 5.79 volts may permanently damage the performance
characteristics of the battery.
attery Care and Maintenance
TDC-0971-011 CCU 100 and Repeater 100 Installation Guide 53
Proprietary and Confidential
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