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Remote Radio Link User Guide
Page 36
Sample Rate Report Rate Battery Life
Every 5 Minutes Every Hour 114 Days
Every 15 Minutes Every 6 Hours 425 Days
Every Hour Every 12 Hours 680 Days
Every 12 Hours Every Day 895 Days
Every 15 Minutes Every 3 Days 810 days
Every Hour Every 7 Days 1078 Days
Every 12 Hours Every 14 Days 1200 Days
Table 6-1 Battery Life Estimates (6 AA lithium batteries at 1 Watt setting)
Figure 6-2 External Power Cable Connection
6.1 Power Sources and Antennas
6.1.1 Power Supply
RRL Stations come standard with six (6) 3.6V AA lithium batteries. The batteries must be installed for
proper operation , even if you use an additional external power source. The life of the battery varies depending
on the frequency of your Sample and Report Rates. The following are estimates based on the standard lithium
batteries, with the Radio Power setting at 1 Watt. With the Radio Power set at 100 mW, the battery life
increases by about 10% of the estimates below. RRL Stations can also be powered by six (6) user-supplied
1.5V AA alkaline batteries. With alkaline batteries, the battery life will be about 40% of the estimates below.
Note:
Where possible, use lower Radio Power settings and/or longer Report intervals to conserve Remote Station
Battery life.
Note:
If your Reporting Rate is less than 3 hours, an external power source is recommended.
Note:
It is recommended to replace the batteries when the Remote Station Battery indicator reaches 30% in the STS/
RRL Administrator. See Section 4.1.
RRL Home Stations and Relay Stations require an external power supply. Remote Stations may also
require an external power supply, depending on your Sample and Report Rates and site needs. Solinst supplies
a cable for connecting to an AC power source and a cable to connect to a user-supplied 12V battery or solar
panel. Cables are connected to the RRL Station beside the antenna connection (see Figure 6-2).
Note:
Rechargeable batteries can not be used inside any RRL Units (Home, Relay, Remote), as the voltage would be to
low.