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34	34	* Tri-color LED to indicate working status
35	35	* Datalog feature
36	36
37		-
38	38	== Specification: ==
39	39
40	40	**Built-in Temperature Sensor:**
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59	59	* Operating Range: -55 °C ~~ 125 °C
60	60
61	61
	61	+= Battery & How to replace =
	62	+
	63	+== Battery Type ==
	64	+
	65	+LHT65N is equipped with a 2400mAH Li-MnO2 (CR17505) battery . The battery is an un-rechargeable battery with low discharge rate targeting for up to 8~~10 years use. This type of battery is commonly used in IoT devices for long-term running, such as water meters.
	66	+
	67	+The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
	68	+[[image:image-20220515075034-1.png||height="208" width="644"]]
	69	+
	70	+
	71	+The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
	72	+
	73	+
	74	+== Replace Battery ==
	75	+
	76	+LHT65N has two screws on the back, Unscrew them, and changing the battery inside is ok. The battery is a general CR17450 battery. Any brand should be ok.
	77	+
	78	+[[image:image-20220515075440-2.png||height="338" width="272"]][[image:image-20220515075625-3.png||height="193" width="257"]]
	79	+
	80	+
	81	+== Battery Life Analyze ==
	82	+
	83	+Dragino battery-powered products are all run in Low Power mode. User can check the guideline from this link to calculate the estimated battery life:
	84	+https:~/~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf
	85	+
	86	+
62	62	= Order Info =
63	63
64	64	Part Number: (% class="mark" %)**LHT65-XX**
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74	74	* **IN865**: LoRaWAN IN865 band
75	75	* **CN470**: LoRaWAN CN470 band
76	76
77		-
78	78	= Packing Info =
79	79
80	80	**Package Includes**:
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90	90	* Package Size / pcs : 14.5 x 8 x 5 cm
91	91	* Weight / pcs : 170g
92	92
	117	+= FCC Warning =
	118	+
	119	+This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
	120	+
	121	+(1) This device may not cause harmful interference, and
	122	+
	123	+(2) this device must accept any interference received, including interference that may cause undesired operation
	124	+
	125	+
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