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LSE01 LoRaWAN Soil Moisture & EC Sensor User Manual 22 / 30
2.11 Battery Analysis
2.11.1 Battery Type
The LSE01 battery is a combination of a 4000mAh Li/SOCI2 Battery and a Super Capacitor.
The battery is non-rechargeable battery type with a low discharge rate (<2% per year). This
type of battery is commonly used in IoT devices such as water meter.
The battery is designed to last for more than 5 years for the LSN50.
The battery related documents as below:
● Battery Dimension,
● Lithium-Thionyl Chloride Battery datasheet, Tech Spec
● Lithium-ion Battery-Capacitor datasheet, Tech Spec
2.11.2 Battery Note
The Li-SICO battery is designed for small current / long period application. It is not good to
use a high current, short period transmit method. The recommended minimum period for
use of this battery is 5 minutes. If you use a shorter period time to transmit LoRa, then the
battery life may be decreased.
2.11.3 Replace the battery
You can change the battery in the LSE01.The type of battery is not limited as long as the
output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery
and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1
and shortcut the two pads of it so there won’t be voltage drop between battery and main
board.
The default battery pack of LSE01 includes a ER18505 plus super capacitor. If user can’t find
this pack locally, they can find ER18505 or equivalence, which will also work in most case.
The SPC can enlarge the battery life for high frequency use (update period below 5 minutes)
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