Efento HC5 - Page 23

Efento SP. J.
Ul.Krupnicza 14/5
31-123 Kraków
● Ambient temperature - in lower temperatures the batteries discharge faster. Lithium-ion
batteries used in Efento loggers should not operate beyond the range specified in the device's
technical card
The table below presents expected battery life time and monthly data usage depending on the settings
and signal conditions (ECL). The values below are values for a temperature and humidity logger.
* Table above presents maximum uplink data usage.
● Due to a compression algorithm, real data uplink data may be up to 25% lower compared to the
values from the table above
● Downlink data does not take into the account configuration changes sent to the logger from the
server and FOTA updates
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CAUTION:
Efento recommends to treat the battery life time calculations indicatively, and
always assume that the real battery life time will be shorter due to many factors,
which could not be included in the model.
The table below shows data for a standard battery pack of 2 batteries (4200 mAh). In
the case of a battery pack made of 3 batteries (6300 mAh), battery life time
increases by 50%.
Measureme
nt interval
[min]
Transmissi
on interval
[min]
ACK period
(every N
messages)
Bluetooth
interface
Battery lifetime [years]**
Data usage
(up + down)*
ECL = 0
ECL = 1
ECL = 2
15
60
24
OFF
11
7.5
5
106 kB
ON
6.2
4.6
3.5
3
30
12
OFF
6
3.7
2.5
252 kB
ON
4.1
2.8
2
3
180
8
OFF
11
11
9
90 kB
ON
8
6.3
5.1
5
60
1
OFF
3.1
1.9
1.2
182 kB
ON
2.5
1.7
1.1
5
60
24
OFF
6.2
4.7
3.6
130 kB
ON
6.2
4.7
3.6
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