<
From version < 7.1 >
edited by Edwin Chen
on 2022/05/07 13:58
To version < 12.1 >
edited by Edwin Chen
on 2022/05/15 08:01
>
Change comment: Uploaded new attachment "image-20220515080154-4.png", version {1}

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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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