Product Info

Draft 2/8/12
2-2 Viking Portable Radio Service Manual
Battery, Accessory and Disassembly Information
2.1.2 Preventing Loss of Encryption Keys during Battery Change
If Infinite Key Retention is not programmed, the radio must be connected to a constant
power source to preserve the encryption keys in memory. Storage capacitors maintain the
supply voltage (and these keys) for approximately 3.5 minutes to allow the battery to be
changed. Therefore, when changing the battery of a radio containing keys, make sure to
reattach another battery within 3.5 minutes.
2.1.3 Battery Specifications
Table 2.1 contains specifications for batteries. For current advertised specifications, refer
to the specification sheet available from your sales representative. Values are typical and
are subject to change without notice.
2.1.4 Battery Charging
The following considerations apply to all rechargeable batteries:
• Be sure to carefully read the instructions for operation of the battery charger, and follow
all of them carefully.
• Do not charge the battery with radio power on.
• If batteries are not in service (i.e., in storage) be sure to recharge them at least every 12
months.
• Be sure, especially when using Nickel Metal-Hydride (NiMH) batteries, to put new
batteries (or batteries that have been inactive for a significant time) through at least
three full charge/discharge cycles initially. Otherwise the batteries may not provide the
full number of operating hours for which they are rated.
Do not transmit in close proximity to the charger base. Do not expose the charger base to
high level RF signals while a battery is being charged because this may cause a charger
fuse to blow (especially in the UHF range). Radios programmed for SMARTNET/
SmartZone operation, for example, may affiliate while in the charger which causes them to
key automatically. Therefore, do not leave radio power on while charging.
Table 2.1 Viking Portable Portable Radio Battery Specifications
Battery Type Dimensions (HxWxD) Weight Approximate Life (5/5/90)
Ultra-High Capacity Lithium
Ion
6.5 x 2.3 x .78 inches
(165.1 x 58.42 x 19.8 mm)
8.1 oz. (60.66213 kg) 12 hours
CAUTION
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