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Author

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1		-XWiki.Edwin
	1	+XWiki.kai

Content

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123	123	* Cell efficient : 22%
124	124	* UV resistance
125	125
126		-
127	127	== 3.4 Related Document ==
128	128
129	129
130	130	* **[[Recharge Circuit. >>https://www.dropbox.com/scl/fo/p9iqzcmivaczpmhwufj6s/h?rlkey=9zq6irrzj46ajy933ghg5uw3m&dl=0]]**
131	131
132		-
133	133	== 3.5 Recharge without Solar ==
134	134
135	135
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173	173	The power consumption mainly include three parts:
174	174
175	175	* Sleep Power  : Most time the CPU are in sleep mode. It is around 6uA, So **for one day**, total power consumption: 6uA x 24(hour) = 144 uAh = 0.144mAh (base on batter output voltage)
176		-* Watch Dog Current: Internal Water Dog to monitor Software state: this is very small and same for each device.** for one day**: 0.003mAH
	174	+* Watch Dog Current: Internal Water Dog to monitor Software state: this is very small and same for each device.** for one day**: 0.003mAH
177	177	* Sampling Power: The power consume to read sensor for each sampling.
178	178	** Example, SN50v3-LB connect to an external sensor, each reading need to use 5V , and sensor require current 10mA and 2 seconds. So each sampling need 10mA x 2 seconds / 3600 = 0.0056mAh ( base on 5v). Assume 90% converter rate from 3.3v to 5v) , we can consider the mAh in 3.3v is 0.0056mAh/90% = **0.0062mAh per sampling**. If one day, SN50v3-LB read this sensor 3 times every hour. So **for one day**, the total power consumption is 0.0062mAh x 3 x 24 = 0.4464 mAh
179	179	* Transmit & Receive Power: this power consumption depends on the transmit power and the data rate (DR) settings. They are the same for all -LB and -LS series. Below are the reference
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180	180	** EU868 band, TXP=0 (Max Power), DR=5 （Shortest Distance） : ~~0.0028mAh (base on 3.3v) (per transmit + receive).
181	181	** EU868 band, TXP=0 (Max Power), DR=0 （Longest Distance） :  ~~0.044 mAh (base on 3.3v) (per transmit + receive).
182	182
183		-
184	184	So for SN50v3 with above sensor, we set 5V output to open 2 seconds every reading and set TDC = 20 minutes. So 72 reading and transmit every day
185	185
186	186	The total power consumption is
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198	198	)))
199	199
200	200
	198	+== 4.3 Method 3: Use AI to calculate. ==
	199	+
	200	+=== 4.3.1 For CB version: ===
	201	+
	202	+For example, if you need to inquire about the battery life of the S31-CB, you can refer to the following instructions to inquire about the AI:
	203	+
	204	+
	205	+The S31x-CB using ER26500 + SPC1520 8500mAh battery packs.
	206	+
	207	+~1. CB version of AI questioning techniques:
	208	+
	209	+Battery capacity is 8500mAh, self-discharge <2%/year
	210	+Sleep current:  19.618uA
	211	+Sampling current&Duration:  20mA. 10 seconds
	212	+UDP Transmit/Receive Current & Duration:  58mA, 36 sec.
	213	+MQTT protocol transmit current & duration:  63mA, 41 seconds
	214	+TCP protocol transmit current & duration:  62mA, 41 seconds
	215	+GSP positioning current & duration:  87.0756mA, 44.162 seconds
	216	+Timed Acquisition Current & Duration:  8.78151mA, 0.125338s
	217	+Acquisition every 120 minutes, launching once, GPS positioning once a day ,15 minutes timed acquisition once
	218	+How many years can the battery be used in different transmission modes?
	219	+
	220	+
	221	+**AI Response Results:**
	222	+
	223	+[[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/S31-CBS31B-CB--NB-IoTLTE-M_Temperature%26Humidity_Sensor_User_Manual/WebHome/image-20250314084804-1.png?width=557&height=1828&rev=1.1||alt="image-20250314084804-1.png"]]
	224	+
	225	+===
	226	+4.3.2. For CS version: ===
	227	+
	228	+
	229	+
	230	+For example, if you need to inquire about the battery life of the S31-CS, you can refer to the following instructions to inquire about the AI:
	231	+
	232	+The S31x-CS uses a 3000mAh Li-Ion battery.
	233	+
	234	+Battery capacity is 8500mAh, self-discharge <2%/year
	235	+Sleep current: 50.409uA
	236	+Sampling current&Duration:  20mA. 10 seconds
	237	+UDP Transmit/Receive Current & Duration:  58mA, 36 seconds.
	238	+MQTT protocol transmit current & duration:  63mA, 41 seconds
	239	+TCP protocol transmit current & duration:  62mA, 41 seconds
	240	+GSP positioning current & duration:  87.0756mA, 44.162 seconds
	241	+Timed Acquisition Current & Duration:  8.78151mA, 0.125338 seconds
	242	+Acquisition every 120 minutes, launching once, GPS positioning once a day ,15 minutes timed acquisition once
	243	+How many years can the battery be used in different transmission modes?
	244	+
	245	+**AI Response Results:**
	246	+
	247	+[[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/S31-CBS31B-CB--NB-IoTLTE-M_Temperature%26Humidity_Sensor_User_Manual/WebHome/image-20250314093630-2.png?width=523&height=1621&rev=1.1||alt="image-20250314093630-2.png"]]
	248	+
	249	+===
	250	+4.3.3. For LB version: ===
	251	+
	252	+
	253	+
	254	+
201	201	= 5. Debug for Battery running out shortly =
202	202
203	203