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Changes for page FAQ for Batteries

Last modified by kai on 2025/05/21 18:04
From version 11.1
edited by Edwin Chen
on 2023/04/18 00:07
Change comment: There is no comment for this version
To version 8.1
edited by Edwin Chen
on 2023/04/01 21:00
Change comment: There is no comment for this version

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53 53  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.
54 54  
55 55  
56 -= 2. CR17450 Battery =
57 -
58 -== 2.1 Battery Info ==
59 -
60 -
61 -CR17450 is an un-rechargeable Li-MnO2 battery with 2400mAh and low discharge rate targeting for 8~~10 years use. This type of battery is commonly used in IoT target for long-term running, such as water meter. Dragino outdoor sensor models use this type of battery widely.
62 -
63 -
64 -== 2.2 Battery Document ==
65 -
66 -
67 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N-E5%20LoRaWAN%20Temperature_Humidity%20%26%20Illuminance%20Sensor%20User%20Manual/WebHome/image-20220515075625-3.png?width=257&height=193&rev=1.1||alt="image-20220515075625-3.png" height="193" width="257"]]
68 -
69 -(% style="color:blue" %)**The battery related documents as below:**
70 -
71 -* [[Battery Dimension>>https://www.dropbox.com/sh/o3k9x20fv2osi3w/AAAGf2B7HcRGog8xAOPoMWPha?dl=0]]
72 -
73 -
74 -== 2.3 When and how to Replace Battery ==
75 -
76 -
77 -The discharge curve of CR17450 is not linear so can't simply use percentage to show the battery level. Below is the battery performance.
78 -
79 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N-E5%20LoRaWAN%20Temperature_Humidity%20%26%20Illuminance%20Sensor%20User%20Manual/WebHome/image-20220515075034-1.png?width=644&height=208&rev=1.1||alt="image-20220515075034-1.png" height="208" width="644"]]
80 -
81 -
82 -If we see the battery lower than 2.7v, it is time to replace battery.
83 -
84 -CR17450 is a general type battery. User is easy to find online via Aliexpress, Amazon , Ebay etc. Below shows how to replace it in LHT65N, unscrew the screws and replace will be ok.
85 -
86 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N-E5%20LoRaWAN%20Temperature_Humidity%20%26%20Illuminance%20Sensor%20User%20Manual/WebHome/image-20220515075440-2.png?width=272&height=338&rev=1.1||alt="image-20220515075440-2.png" height="338" width="272"]]
87 -
88 -
89 89  = Power Consumption Analyze =
90 90  
91 91  
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105 105  
106 106  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual/WebHome/1675146895108-304.png?rev=1.1||alt="1675146895108-304.png"]]
107 107  
108 -
109 -
110 -= Debug for Battery running out shortly =
111 -
112 -Below factors will affect the battery life. If the battery runs out very fast unexpectedly. Please check below points:
113 -
114 -1. What is the (% style="color:blue" %)**uplink period**(%%) of the end node?
115 -1. What is the (% style="color:blue" %)**DataRate**(%%) the sensor used to uplink?
116 -1. Does the sensor sends re-transmit too oftern? See [[**this link**>>http://wiki.dragino.com/xwiki/bin/view/Main/Notes%20for%20ChirpStack/#H7.A0MultiplyUplinkinChirpStack]] for a possible issue with LoRaWAN server.
117 -
118 -User can also send us (support(at)dragino.com) record so check. a record like below with the info:** Battery**, **uplink time**, **DR**.
119 -
120 -[[image:image-20230418000422-1.png]]
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1 -XWiki.Edwin
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