Device Manual
Ba>ery Life Expecta2ons
Ba`ery Life ExpectaFons
Your device is designed to be run on mains power most of the Fme. However, it has an internal
backup ba`ery which will be used in the absence of external power. These ba`ery life predicFons
assume the following:
• GPS Early-wake set to 20s
• Clear sky condiFons
As with all portable ba`ery powered devices, ba`ery life can be significantly shortened by extreme
temperatures and some usage pa`erns. Key factors which will shorten the number of transmissions
possible on a ba`ery charge are:
• Use of GPS Hot Mode and Burst Mode
• Poor posiFoning, so poor view of the sky (most likely!)
Interval
Transmissions
Hours
Days
Weeks
ConFnuous
1500
25
1
5 minutes
900
75
3
15 minutes
850
210
9
1.2
30 minutes
700
350
14
2
1 hour
600
600
25
3.5
4 hour
550
2200
90
12.8
8 hour
500
4000
165
23.5
10
