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57	57	* ±2°C accuracy from -55°C to +125°C
58	58	* Operating Range: -55 °C ~~ 125 °C
59	59
	60	+
	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	+
60	60	= Order Info =
61	61
62	62	Part Number: (% class="mark" %)**LHT65-XX**
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87	87	* Package Size / pcs : 14.5 x 8 x 5 cm
88	88	* Weight / pcs : 170g
89	89
90		-
91	91	= FCC Warning =
92	92
93	93	This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:

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