{"id":15692,"date":"2025-10-22T15:06:04","date_gmt":"2025-10-22T09:36:04","guid":{"rendered":"https:\/\/johnsonfrancis.org\/techworld\/?p=15692"},"modified":"2025-10-22T15:06:07","modified_gmt":"2025-10-22T09:36:07","slug":"leo-satellite-operation-with-salvaged-ups-battery","status":"publish","type":"post","link":"https:\/\/johnsonfrancis.org\/techworld\/leo-satellite-operation-with-salvaged-ups-battery\/","title":{"rendered":"LEO satellite operation with salvaged UPS battery!"},"content":{"rendered":"<iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/3yLBsHJXRYA?si=1NpJUnOGPFraL-Nn\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n\n<p class=\"wp-block-paragraph\">I was using a quarter century old linear power supply for my IC-2730A radio for Low Earth Orbit satellite operations, mostly through the Amateur Radio on International Space Station. Now I have salvaged a sealed lead acid battery from my old UPS which is now defunct. 180W Monocrystalline PERC solar panel is being used to charge the battery through a 200W solar charge controller. Most of the time I have to disconnect the battery from the charge controller as it is indicating full charge. That is mainly because of very few satellite passes are available for me to work with my fixed azimuth\/elevation Moxon Yagi with just two Moxon rectangle elements on VHF and five passively coupled UHF elements.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I was using a quarter century old linear power supply for my IC-2730A radio for Low Earth Orbit satellite operations, mostly through the Amateur Radio on International Space Station. Now I have salvaged a sealed lead acid battery from my old UPS which is now defunct. 180W Monocrystalline PERC solar panel is being used to [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":15693,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-15692","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-amateur-radio-ham-radio"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>LEO satellite operation with salvaged UPS battery! - Johnson&#039;s Techworld<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/johnsonfrancis.org\/techworld\/leo-satellite-operation-with-salvaged-ups-battery\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"LEO satellite operation with salvaged UPS battery! - Johnson&#039;s Techworld\" \/>\n<meta property=\"og:description\" content=\"I was using a quarter century old linear power supply for my IC-2730A radio for Low Earth Orbit satellite operations, mostly through the Amateur Radio on International Space Station. Now I have salvaged a sealed lead acid battery from my old UPS which is now defunct. 180W Monocrystalline PERC solar panel is being used to [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/johnsonfrancis.org\/techworld\/leo-satellite-operation-with-salvaged-ups-battery\/\" \/>\n<meta property=\"og:site_name\" content=\"Johnson&#039;s Techworld\" \/>\n<meta property=\"article:published_time\" content=\"2025-10-22T09:36:04+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-10-22T09:36:07+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/johnsonfrancis.org\/techworld\/wp-content\/uploads\/2025\/10\/LEO-satellite-operation-with-salvaged-UPS-battery.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1201\" \/>\n\t<meta property=\"og:image:height\" content=\"675\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Johnson Francis\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Johnson Francis\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/leo-satellite-operation-with-salvaged-ups-battery\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/leo-satellite-operation-with-salvaged-ups-battery\\\/\"},\"author\":{\"name\":\"Johnson Francis\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/#\\\/schema\\\/person\\\/6201c843e80ccd3578e6196b1d007027\"},\"headline\":\"LEO satellite operation with salvaged UPS battery!\",\"datePublished\":\"2025-10-22T09:36:04+00:00\",\"dateModified\":\"2025-10-22T09:36:07+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/leo-satellite-operation-with-salvaged-ups-battery\\\/\"},\"wordCount\":128,\"publisher\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/#\\\/schema\\\/person\\\/6201c843e80ccd3578e6196b1d007027\"},\"image\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/leo-satellite-operation-with-salvaged-ups-battery\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/wp-content\\\/uploads\\\/2025\\\/10\\\/LEO-satellite-operation-with-salvaged-UPS-battery.jpg\",\"articleSection\":[\"Amateur Radio (Ham Radio)\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/leo-satellite-operation-with-salvaged-ups-battery\\\/\",\"url\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/leo-satellite-operation-with-salvaged-ups-battery\\\/\",\"name\":\"LEO satellite operation with salvaged UPS battery! 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