{"id":9306,"date":"2026-03-09T15:18:29","date_gmt":"2026-03-09T15:18:29","guid":{"rendered":"https:\/\/sensor-online.se\/?p=9306"},"modified":"2026-03-29T10:28:32","modified_gmt":"2026-03-29T10:28:32","slug":"rssi-battery-life-elsys-ers-lite","status":"publish","type":"post","link":"https:\/\/sensor-online.se\/sv\/rssi-battery-life-elsys-ers-lite\/","title":{"rendered":"RSSI Signal Strength, Battery Life and cost"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\">What Is RSSI and Why Does It Matter?<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">RSSI stands for <strong>Received Signal Strength Indicator<\/strong>. It is measured in <strong>dBm (decibels relative to 1 milliwatt)<\/strong> and tells you how strongly a sensor&#8217;s radio signal is being received at the LoRaWAN gateway. The scale is negative \u2014 the closer to zero, the stronger the signal.<\/p>\n\n\n\n<iframe \n  src=\"https:\/\/nodeledge.se\/rssi-battery-diagram-cost.html\"\n  width=\"100%\" \n  height=\"1350\" \n  frameborder=\"0\"\n  scrolling=\"no\"\n  style=\"border:none; border-radius:12px; display:block;\">\n<\/iframe>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>RSSI Range<\/strong><\/td><td><strong>Signal Quality<\/strong><\/td><td><strong>LoRa Spreading Factor<\/strong><\/td><td><strong>What It Means<\/strong><\/td><\/tr><\/thead><tbody><tr><td>-40 to -70 dBm<\/td><td>Good<\/td><td>SF7<\/td><td>Sensor is close or has clear line-of-sight to gateway<\/td><\/tr><tr><td>-71 to -90 dBm<\/td><td>Acceptable<\/td><td>SF9-10<\/td><td>Walls, floors or distance are attenuating the signal<\/td><\/tr><tr><td>-91 to -120 dBm<\/td><td>Critical<\/td><td>SF11-12<\/td><td>Sensor is struggling \u2014 retransmissions likely<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>KEY<\/strong><\/td><td>RSSI does not just affect data reliability \u2014 it directly controls how much energy each transmission uses, which determines battery life.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h1 class=\"wp-block-heading\">2. LoRaWAN Adaptive Data Rate (ADR)<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">LoRaWAN uses a mechanism called Adaptive Data Rate (ADR). The network server continuously monitors signal quality and instructs each sensor to use the most efficient radio settings for its environment.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>How ADR Works<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Good signal (RSSI &gt; -70 dBm) \u2192 network assigns SF7 (fastest, lowest energy)<\/li>\n\n\n\n<li>Medium signal (-70 to -90 dBm) \u2192 network steps up to SF9 or SF10<\/li>\n\n\n\n<li>Poor signal (&lt; -90 dBm) \u2192 network assigns SF11 or SF12 (slowest, highest energy)<\/li>\n\n\n\n<li>Very poor signal \u2192 sensor may retransmit the same packet 2-3 times per cycle<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>The Energy Cost of Higher Spreading Factors<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Each step up in Spreading Factor roughly doubles the time-on-air of each packet. Since radio transmission is by far the largest energy drain on a battery-powered sensor, this has a compounding effect on battery life.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>Spreading Factor<\/strong><\/td><td><strong>Time on Air (approx.)<\/strong><\/td><td><strong>Energy vs SF7<\/strong><\/td><td><strong>Relative Battery Impact<\/strong><\/td><\/tr><\/thead><tbody><tr><td>SF7<\/td><td>~56 ms<\/td><td>1\u00d7<\/td><td>Baseline<\/td><\/tr><tr><td>SF8<\/td><td>~103 ms<\/td><td>2\u00d7<\/td><td>+100%<\/td><\/tr><tr><td>SF9<\/td><td>~185 ms<\/td><td>3.3\u00d7<\/td><td>+230%<\/td><\/tr><tr><td>SF10<\/td><td>~370 ms<\/td><td>6.6\u00d7<\/td><td>+560%<\/td><\/tr><tr><td>SF11<\/td><td>~741 ms<\/td><td>13\u00d7<\/td><td>+1,200%<\/td><\/tr><tr><td>SF12<\/td><td>~1,483 ms<\/td><td>26\u00d7<\/td><td>+2,500%<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h1 class=\"wp-block-heading\">3. Elsys ERS Lite \u2014 Battery Specifications<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">The Elsys ERS Lite is a compact indoor environment sensor using a single AA Lithium 3.6V battery (Saft LS14500 or equivalent, ~2,400 mAh).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Energy Budget Breakdown<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>Operating Mode<\/strong><\/td><td><strong>Current Draw<\/strong><\/td><td><strong>Duration<\/strong><\/td><td><strong>Notes<\/strong><\/td><\/tr><\/thead><tbody><tr><td>Deep sleep<\/td><td>~5 \u00b5A<\/td><td>~14.9 min\/cycle<\/td><td>Between transmissions<\/td><\/tr><tr><td>MCU wake + measure<\/td><td>~2 mA<\/td><td>~200 ms\/cycle<\/td><td>Sensor reading<\/td><\/tr><tr><td>LoRa TX (SF7)<\/td><td>~40 mA<\/td><td>~56 ms<\/td><td>Best-case signal<\/td><\/tr><tr><td>LoRa TX (SF9)<\/td><td>~40 mA<\/td><td>~185 ms<\/td><td>Typical indoor<\/td><\/tr><tr><td>LoRa TX (SF12)<\/td><td>~40 mA<\/td><td>~1,483 ms<\/td><td>Worst-case signal<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">At <strong>SF7 with 15-minute intervals<\/strong> the sensor spends over 99.9% of its time in deep sleep. As the Spreading Factor increases, the active radio time per day grows significantly, accelerating battery depletion.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">4. Battery Life Calculation<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Step 1 \u2014 Transmissions per day<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>96 transmissions\/day&nbsp; =&nbsp; (24 hours \u00d7 60 min) \/ 15 min interval<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Step 2 \u2014 Energy per transmission (SF9 example)<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Each transmission consists of: sleep current between cycles + sensor measurement + LoRa radio burst.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>E_tx = (40 mA \u00d7 185 ms)&nbsp; +&nbsp; (2 mA \u00d7 200 ms)&nbsp; +&nbsp; (0.005 mA \u00d7 900 s)&nbsp; \u2248&nbsp; 12.9 mAh\/day<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">At <strong>SF7 (RSSI &gt; -70 dBm)<\/strong>: E_tx \u2248 7.2 mAh\/day&nbsp; \u2192&nbsp; battery life \u2248 <strong>~6.5 years<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At <strong>SF9 (RSSI \u2248 -80 dBm)<\/strong>: E_tx \u2248 12.9 mAh\/day&nbsp; \u2192&nbsp; battery life \u2248 <strong>~4.0 years<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At <strong>SF12 (RSSI &lt; -100 dBm)<\/strong>: E_tx \u2248 30+ mAh\/day&nbsp; \u2192&nbsp; battery life \u2248 <strong>~1.1 years<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Step 3 \u2014 Battery life formula<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Battery Life (years)&nbsp; =&nbsp; Battery Capacity (mAh)&nbsp; \/&nbsp; (Daily Consumption (mAh\/day) \u00d7 365)<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Reference Battery Life Table<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>RSSI (dBm)<\/strong><\/td><td><strong>ADR Setting<\/strong><\/td><td><strong>Est. Battery Life<\/strong><\/td><td><strong>Swaps \/ Year (1,000 sensors)<\/strong><\/td><\/tr><\/thead><tbody><tr><td>-40<\/td><td>SF7<\/td><td>7.5 years<\/td><td>133<\/td><\/tr><tr><td>-60<\/td><td>SF7<\/td><td>6.5 years<\/td><td>154<\/td><\/tr><tr><td>-75<\/td><td>SF8<\/td><td>5.0 years<\/td><td>200<\/td><\/tr><tr><td>-80<\/td><td>SF9<\/td><td>4.0 years<\/td><td>250<\/td><\/tr><tr><td>-90<\/td><td>SF10<\/td><td>2.8 years<\/td><td>357<\/td><\/tr><tr><td>-100<\/td><td>SF11<\/td><td>1.8 years<\/td><td>556<\/td><\/tr><tr><td>-110<\/td><td>SF12<\/td><td>1.1 years<\/td><td>909<\/td><\/tr><tr><td>-120<\/td><td>SF12 + retrans<\/td><td>0.6 years<\/td><td>1,667<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h1 class=\"wp-block-heading\">5. Annual Cost Model<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">The total annual cost of battery maintenance is made up of two components:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>Cost Component<\/strong><\/td><td><strong>Value Used<\/strong><\/td><td><strong>Formula<\/strong><\/td><\/tr><\/thead><tbody><tr><td>Battery (AA Lithium)<\/td><td>SEK 50 per sensor<\/td><td>Swaps\/year \u00d7 SEK 50<\/td><\/tr><tr><td>Labour (technician)<\/td><td>SEK 420\/hour, 20 min\/swap<\/td><td>Swaps\/year \u00d7 (20\/60) \u00d7 SEK 420<\/td><\/tr><tr><td>Labour cost per swap<\/td><td>SEK 140<\/td><td>20 min \u00d7 SEK 420\/60 min<\/td><\/tr><tr><td>Total cost per swap<\/td><td>SEK 190<\/td><td>SEK 50 + SEK 140<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Annual Cost Formula<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Annual Cost (SEK)&nbsp; =&nbsp; (1,000 \/ Battery Life in years)&nbsp; \u00d7&nbsp; (SEK 50 + (20\/60 \u00d7 SEK 420))<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Cost Comparison by Signal Quality<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>RSSI<\/strong><\/td><td><strong>Battery Life<\/strong><\/td><td><strong>Swaps \/ Year<\/strong><\/td><td><strong>Battery Cost<\/strong><\/td><td><strong>Labour Cost<\/strong><\/td><td><strong>Total \/ Year<\/strong><\/td><\/tr><\/thead><tbody><tr><td>-60 dBm<\/td><td>6.5 yrs<\/td><td>154<\/td><td>SEK 7,700<\/td><td>SEK 21,560<\/td><td>SEK 29,260<\/td><\/tr><tr><td>-80 dBm<\/td><td>4.0 yrs<\/td><td>250<\/td><td>SEK 12,500<\/td><td>SEK 35,000<\/td><td>SEK 47,500<\/td><\/tr><tr><td>-100 dBm<\/td><td>1.8 yrs<\/td><td>556<\/td><td>SEK 27,800<\/td><td>SEK 77,840<\/td><td>SEK 105,640<\/td><\/tr><tr><td>-120 dBm<\/td><td>0.6 yrs<\/td><td>1,667<\/td><td>SEK 83,350<\/td><td>SEK 233,380<\/td><td>SEK 316,730<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>IMPACT<\/strong><\/td><td>Moving from RSSI -100 dBm to -60 dBm saves approximately SEK 76,000 per year across 1,000 sensors. A single additional LoRaWAN gateway costs SEK 3,000-8,000 \u2014 it pays for itself within weeks.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h1 class=\"wp-block-heading\">6. What Can a Property Manager Do?<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Improve RSSI by 10-20 dBm with low-cost actions:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Reposition existing gateway higher (each floor gained = ~3-5 dBm improvement)<\/li>\n\n\n\n<li>Move gateway away from metal cabinets, lift shafts and electrical panels<\/li>\n\n\n\n<li>Install an outdoor or ceiling-mounted directional antenna<\/li>\n\n\n\n<li>Add a second LoRaWAN gateway to cover a problematic zone<\/li>\n\n\n\n<li>Use an antenna extension cable to reach a better mounting location<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Monitor and act proactively with Sensor-online.se:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Set RSSI alert thresholds \u2014 get notified when a sensor drops below -85 dBm<\/li>\n\n\n\n<li>Use the battery voltage trend to predict replacements 3-6 months in advance<\/li>\n\n\n\n<li>Plan batch replacements by floor or zone to minimise technician travel time<\/li>\n\n\n\n<li>Review gateway coverage map after any building renovation<\/li>\n<\/ul>\n\n\n\n<h1 class=\"wp-block-heading\">7. Summary<\/h1>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>Variable<\/strong><\/td><td><strong>Value \/ Assumption<\/strong><\/td><\/tr><\/thead><tbody><tr><td>Sensor model<\/td><td>Elsys ERS Lite (indoor environment)<\/td><\/tr><tr><td>Battery type<\/td><td>1\u00d7 AA Lithium 3.6V, ~2,400 mAh<\/td><\/tr><tr><td>Transmission interval<\/td><td>Every 15 minutes (96\u00d7\/day)<\/td><\/tr><tr><td>Protocol<\/td><td>LoRaWAN 868 MHz, ADR enabled<\/td><\/tr><tr><td>Fleet size<\/td><td>1,000 sensors<\/td><\/tr><tr><td>Battery unit cost<\/td><td>SEK 50 per sensor<\/td><\/tr><tr><td>Swap labour time<\/td><td>20 minutes per sensor<\/td><\/tr><tr><td>Technician rate<\/td><td>SEK 420\/hour \u2192 SEK 140 per swap<\/td><\/tr><tr><td>Battery life model<\/td><td>Interpolated from Elsys datasheet + LoRa air-time calculator<\/td><\/tr><tr><td>RSSI range modelled<\/td><td>-40 dBm (excellent) to -120 dBm (critical)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">This analysis was produced using the <strong>Sensor-online.se IoT Platform<\/strong>. For questions about your specific installation, gateway coverage, or battery monitoring configuration, contact your Sensor-online.se account manager.<\/p>\n\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is the typical battery life of Elsys ERS Lite?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Elsys ERS Lite lasts 7\u201310 years at 10-minute reporting intervals with standard AA batteries in normal indoor temperatures.\"}},{\"@type\":\"Question\",\"name\":\"What does RSSI mean in LoRaWAN?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"RSSI (Received Signal Strength Indicator) measures signal power in dBm. Values better than \u2212100 dBm indicate strong signal; below \u2212120 dBm indicates marginal link quality.\"}},{\"@type\":\"Question\",\"name\":\"How does battery life affect LoRaWAN installation cost?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Longer battery life reduces replacement labor cost significantly, especially for large deployments. A 10-year battery vs 2-year battery can save thousands in maintenance cost over the device lifetime.\"}}]}<\/script>","protected":false},"excerpt":{"rendered":"<p>What Is RSSI and Why Does It Matter? RSSI stands for Received Signal Strength Indicator. It is measured in dBm (decibels relative to 1 milliwatt) and tells you how strongly a sensor&#8217;s radio signal is being received at the LoRaWAN gateway. The scale is negative \u2014 the closer to zero, the stronger the signal. RSSI&hellip;<\/p>","protected":false},"author":1,"featured_media":9314,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[211],"tags":[],"class_list":["post-9306","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news-2026","category-211","description-off"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Elsys ERS Lite: How RSSI Affects Battery Life &amp; Costs<\/title>\n<meta name=\"description\" content=\"Learn how LoRaWAN RSSI signal strength impacts Elsys ERS Lite battery life. Calculate the real annual cost for 1,000 sensors\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sensor-online.se\/sv\/rssi-battery-life-elsys-ers-lite\/\" \/>\n<meta property=\"og:locale\" content=\"sv_SE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Elsys ERS Lite: How RSSI Affects Battery Life &amp; Costs\" \/>\n<meta property=\"og:description\" content=\"Learn how LoRaWAN RSSI signal strength impacts Elsys ERS Lite battery life. Calculate the real annual cost for 1,000 sensors\" \/>\n<meta property=\"og:url\" content=\"https:\/\/sensor-online.se\/sv\/rssi-battery-life-elsys-ers-lite\/\" \/>\n<meta property=\"og:site_name\" content=\"Sensor-Online\u2122 - Versatile IOT-Platform, for all applications\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/profile.php?id=100064148077079\" \/>\n<meta property=\"article:published_time\" content=\"2026-03-09T15:18:29+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-29T10:28:32+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/sensor-online.se\/wp-content\/uploads\/2026\/03\/rssi.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1750\" \/>\n\t<meta property=\"og:image:height\" content=\"1273\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Skriven av\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Ber\u00e4knad l\u00e4stid\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minuter\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/sensor-online.se\\\/rssi-battery-life-elsys-ers-lite\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/sensor-online.se\\\/rssi-battery-life-elsys-ers-lite\\\/\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\\\/\\\/sensor-online.se\\\/#\\\/schema\\\/person\\\/3ea199d4c72d4cae92a2329db964a873\"},\"headline\":\"RSSI Signal Strength, Battery Life and cost\",\"datePublished\":\"2026-03-09T15:18:29+00:00\",\"dateModified\":\"2026-03-29T10:28:32+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/sensor-online.se\\\/rssi-battery-life-elsys-ers-lite\\\/\"},\"wordCount\":895,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/sensor-online.se\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/sensor-online.se\\\/rssi-battery-life-elsys-ers-lite\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/sensor-online.se\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/rssi.png\",\"articleSection\":[\"News 2026\"],\"inLanguage\":\"sv-SE\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/sensor-online.se\\\/rssi-battery-life-elsys-ers-lite\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/sensor-online.se\\\/rssi-battery-life-elsys-ers-lite\\\/\",\"url\":\"https:\\\/\\\/sensor-online.se\\\/rssi-battery-life-elsys-ers-lite\\\/\",\"name\":\"Elsys ERS Lite: How RSSI Affects Battery Life & Costs\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/sensor-online.se\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/sensor-online.se\\\/rssi-battery-life-elsys-ers-lite\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/sensor-online.se\\\/rssi-battery-life-elsys-ers-lite\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/sensor-online.se\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/rssi.png\",\"datePublished\":\"2026-03-09T15:18:29+00:00\",\"dateModified\":\"2026-03-29T10:28:32+00:00\",\"description\":\"Learn how LoRaWAN RSSI signal strength impacts Elsys ERS Lite battery life. Calculate the real annual cost for 1,000 sensors\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/sensor-online.se\\\/rssi-battery-life-elsys-ers-lite\\\/#breadcrumb\"},\"inLanguage\":\"sv-SE\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/sensor-online.se\\\/rssi-battery-life-elsys-ers-lite\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"sv-SE\",\"@id\":\"https:\\\/\\\/sensor-online.se\\\/rssi-battery-life-elsys-ers-lite\\\/#primaryimage\",\"url\":\"https:\\\/\\\/sensor-online.se\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/rssi.png\",\"contentUrl\":\"https:\\\/\\\/sensor-online.se\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/rssi.png\",\"width\":1750,\"height\":1273,\"caption\":\"rssi lorawan\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/sensor-online.se\\\/rssi-battery-life-elsys-ers-lite\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/sensor-online.se\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"RSSI Signal Strength, Battery Life and cost\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/sensor-online.se\\\/#website\",\"url\":\"https:\\\/\\\/sensor-online.se\\\/\",\"name\":\"Sensor-Online a versatile low code IOT-Platform, for all applications\",\"description\":\"Hardware and network agnostic IOT platform\",\"publisher\":{\"@id\":\"https:\\\/\\\/sensor-online.se\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/sensor-online.se\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"sv-SE\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/sensor-online.se\\\/#organization\",\"name\":\"Sensor-Online\",\"url\":\"https:\\\/\\\/sensor-online.se\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"sv-SE\",\"@id\":\"https:\\\/\\\/sensor-online.se\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/sensor-online.se\\\/wp-content\\\/uploads\\\/2023\\\/03\\\/SO_loggo.jpg\",\"contentUrl\":\"https:\\\/\\\/sensor-online.se\\\/wp-content\\\/uploads\\\/2023\\\/03\\\/SO_loggo.jpg\",\"width\":753,\"height\":258,\"caption\":\"Sensor-Online\"},\"image\":{\"@id\":\"https:\\\/\\\/sensor-online.se\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/profile.php?id=100064148077079\",\"https:\\\/\\\/www.linkedin.com\\\/company\\\/sensor-online\\\/\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/sensor-online.se\\\/#\\\/schema\\\/person\\\/3ea199d4c72d4cae92a2329db964a873\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"sv-SE\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/6507dbcfd24592c26d8bf623ed9008c41cc513055fe71d4b2119226fdb1257d7?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/6507dbcfd24592c26d8bf623ed9008c41cc513055fe71d4b2119226fdb1257d7?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/6507dbcfd24592c26d8bf623ed9008c41cc513055fe71d4b2119226fdb1257d7?s=96&d=mm&r=g\",\"caption\":\"admin\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Elsys ERS Lite: How RSSI Affects Battery Life & Costs","description":"Learn how LoRaWAN RSSI signal strength impacts Elsys ERS Lite battery life. Calculate the real annual cost for 1,000 sensors","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/sensor-online.se\/sv\/rssi-battery-life-elsys-ers-lite\/","og_locale":"sv_SE","og_type":"article","og_title":"Elsys ERS Lite: How RSSI Affects Battery Life & Costs","og_description":"Learn how LoRaWAN RSSI signal strength impacts Elsys ERS Lite battery life. Calculate the real annual cost for 1,000 sensors","og_url":"https:\/\/sensor-online.se\/sv\/rssi-battery-life-elsys-ers-lite\/","og_site_name":"Sensor-Online\u2122 - Versatile IOT-Platform, for all applications","article_publisher":"https:\/\/www.facebook.com\/profile.php?id=100064148077079","article_published_time":"2026-03-09T15:18:29+00:00","article_modified_time":"2026-03-29T10:28:32+00:00","og_image":[{"width":1750,"height":1273,"url":"https:\/\/sensor-online.se\/wp-content\/uploads\/2026\/03\/rssi.png","type":"image\/png"}],"author":"admin","twitter_card":"summary_large_image","twitter_misc":{"Skriven av":"admin","Ber\u00e4knad l\u00e4stid":"5 minuter"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/sensor-online.se\/rssi-battery-life-elsys-ers-lite\/#article","isPartOf":{"@id":"https:\/\/sensor-online.se\/rssi-battery-life-elsys-ers-lite\/"},"author":{"name":"admin","@id":"https:\/\/sensor-online.se\/#\/schema\/person\/3ea199d4c72d4cae92a2329db964a873"},"headline":"RSSI Signal Strength, Battery Life and cost","datePublished":"2026-03-09T15:18:29+00:00","dateModified":"2026-03-29T10:28:32+00:00","mainEntityOfPage":{"@id":"https:\/\/sensor-online.se\/rssi-battery-life-elsys-ers-lite\/"},"wordCount":895,"commentCount":0,"publisher":{"@id":"https:\/\/sensor-online.se\/#organization"},"image":{"@id":"https:\/\/sensor-online.se\/rssi-battery-life-elsys-ers-lite\/#primaryimage"},"thumbnailUrl":"https:\/\/sensor-online.se\/wp-content\/uploads\/2026\/03\/rssi.png","articleSection":["News 2026"],"inLanguage":"sv-SE","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/sensor-online.se\/rssi-battery-life-elsys-ers-lite\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/sensor-online.se\/rssi-battery-life-elsys-ers-lite\/","url":"https:\/\/sensor-online.se\/rssi-battery-life-elsys-ers-lite\/","name":"Elsys ERS Lite: How RSSI Affects Battery Life & Costs","isPartOf":{"@id":"https:\/\/sensor-online.se\/#website"},"primaryImageOfPage":{"@id":"https:\/\/sensor-online.se\/rssi-battery-life-elsys-ers-lite\/#primaryimage"},"image":{"@id":"https:\/\/sensor-online.se\/rssi-battery-life-elsys-ers-lite\/#primaryimage"},"thumbnailUrl":"https:\/\/sensor-online.se\/wp-content\/uploads\/2026\/03\/rssi.png","datePublished":"2026-03-09T15:18:29+00:00","dateModified":"2026-03-29T10:28:32+00:00","description":"Learn how LoRaWAN RSSI signal strength impacts Elsys ERS Lite battery life. Calculate the real annual cost for 1,000 sensors","breadcrumb":{"@id":"https:\/\/sensor-online.se\/rssi-battery-life-elsys-ers-lite\/#breadcrumb"},"inLanguage":"sv-SE","potentialAction":[{"@type":"ReadAction","target":["https:\/\/sensor-online.se\/rssi-battery-life-elsys-ers-lite\/"]}]},{"@type":"ImageObject","inLanguage":"sv-SE","@id":"https:\/\/sensor-online.se\/rssi-battery-life-elsys-ers-lite\/#primaryimage","url":"https:\/\/sensor-online.se\/wp-content\/uploads\/2026\/03\/rssi.png","contentUrl":"https:\/\/sensor-online.se\/wp-content\/uploads\/2026\/03\/rssi.png","width":1750,"height":1273,"caption":"rssi lorawan"},{"@type":"BreadcrumbList","@id":"https:\/\/sensor-online.se\/rssi-battery-life-elsys-ers-lite\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/sensor-online.se\/"},{"@type":"ListItem","position":2,"name":"RSSI Signal Strength, Battery Life and cost"}]},{"@type":"WebSite","@id":"https:\/\/sensor-online.se\/#website","url":"https:\/\/sensor-online.se\/","name":"Sensor-Online - en m\u00e5ngsidig IOT-plattform med l\u00e5g kod f\u00f6r alla till\u00e4mpningar","description":"H\u00e5rdvaru- och n\u00e4tverksagnostisk IOT-plattform","publisher":{"@id":"https:\/\/sensor-online.se\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/sensor-online.se\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"sv-SE"},{"@type":"Organization","@id":"https:\/\/sensor-online.se\/#organization","name":"Sensor-Online","url":"https:\/\/sensor-online.se\/","logo":{"@type":"ImageObject","inLanguage":"sv-SE","@id":"https:\/\/sensor-online.se\/#\/schema\/logo\/image\/","url":"https:\/\/sensor-online.se\/wp-content\/uploads\/2023\/03\/SO_loggo.jpg","contentUrl":"https:\/\/sensor-online.se\/wp-content\/uploads\/2023\/03\/SO_loggo.jpg","width":753,"height":258,"caption":"Sensor-Online"},"image":{"@id":"https:\/\/sensor-online.se\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/profile.php?id=100064148077079","https:\/\/www.linkedin.com\/company\/sensor-online\/"]},{"@type":"Person","@id":"https:\/\/sensor-online.se\/#\/schema\/person\/3ea199d4c72d4cae92a2329db964a873","name":"administrat\u00f6r","image":{"@type":"ImageObject","inLanguage":"sv-SE","@id":"https:\/\/secure.gravatar.com\/avatar\/6507dbcfd24592c26d8bf623ed9008c41cc513055fe71d4b2119226fdb1257d7?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/6507dbcfd24592c26d8bf623ed9008c41cc513055fe71d4b2119226fdb1257d7?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/6507dbcfd24592c26d8bf623ed9008c41cc513055fe71d4b2119226fdb1257d7?s=96&d=mm&r=g","caption":"admin"}}]}},"jetpack_featured_media_url":"https:\/\/sensor-online.se\/wp-content\/uploads\/2026\/03\/rssi.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/sensor-online.se\/sv\/wp-json\/wp\/v2\/posts\/9306","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sensor-online.se\/sv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sensor-online.se\/sv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sensor-online.se\/sv\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sensor-online.se\/sv\/wp-json\/wp\/v2\/comments?post=9306"}],"version-history":[{"count":8,"href":"https:\/\/sensor-online.se\/sv\/wp-json\/wp\/v2\/posts\/9306\/revisions"}],"predecessor-version":[{"id":9643,"href":"https:\/\/sensor-online.se\/sv\/wp-json\/wp\/v2\/posts\/9306\/revisions\/9643"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sensor-online.se\/sv\/wp-json\/wp\/v2\/media\/9314"}],"wp:attachment":[{"href":"https:\/\/sensor-online.se\/sv\/wp-json\/wp\/v2\/media?parent=9306"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sensor-online.se\/sv\/wp-json\/wp\/v2\/categories?post=9306"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sensor-online.se\/sv\/wp-json\/wp\/v2\/tags?post=9306"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}