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327	327	* RED LED when external sensor is not connected
328	328	* For each success downlink, the PURPLE LED will blink once
329	329
330		-
331	331	== 2.9 installation ==
332	332
333	333	~1. Don't install LHT65N-PIR outdoor or place where will get wet
...	...	@@ -467,47 +467,15 @@
467	467
468	468	* There is no downlink command to set to Sleep mode.
469	469
470		-= 5. Battery & How to replace =
471		-
472		-== 5.1 Battery Type ==
473		-
474		-
475		-(((
476		-LHT65N-E5 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.
477		-)))
478		-
479		-(((
480		-The discharge curve is not linear so can't simply use percentage to show the battery level. Below is the battery performance.
481		-
482		-
483		-[[image:image-20220515075034-1.png||_mstalt="428961" height="208" width="644"]]
484		-)))
485		-
486		-The minimum Working Voltage for the LHT65N-E5 is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
487	487
488	488
489		-== 5.2 Replace Battery ==
	471	+= 5. Battery & Power Consumption =
490	490
	473	+LHT65N-PIR use **CR17450** battery pack. See below link for detail information about the battery info and how to replace.
491	491
492		-LHT65N-E5 has two screws on the back, Unscrew them, and changing the battery inside is ok. The battery is a general CR17450 battery (3.0v). Any brand should be ok.
	475	+[[**Battery Info & Power Consumption Analyze**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
493	493
494		-[[image:image-20220515075440-2.png||_mstalt="429546" height="338" width="272"]][[image:image-20220515075625-3.png||_mstalt="431574" height="193" width="257"]]
495	495
496		-
497		-== 5.3 Battery Life Analyze ==
498		-
499		-
500		-(((
501		-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:
502		-[[https:~~/~~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf>>https://www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf]]
503		-)))
504		-
505		-
506		-(((
507		-A full detail test report for LHT65N-E5 on different frequency can be found at : [[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0>>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0]]
508		-)))
509		-
510		-
511	511	= 6. FAQ =
512	512
513	513	== 6.1 How to use AT Command? ==