--- title: Solar Supercapacitor Lamp Probably Won’t Get You Saved... description: A DIY solar light uses supercapacitors instead of traditional rechargeable batteries for energy storage. Supercapacitors can handle over 500,000... canonical: https://daily.dev/posts/solar-supercapacitor-lamp-probably-won-t-get-you-saved-at-sea-xf2yhalef twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Solar Supercapacitor Lamp Probably Won’t Get You Saved At Sea | daily.dev og:description: A DIY solar light uses supercapacitors instead of traditional rechargeable batteries for energy storage. Supercapacitors can handle over 500,000... og:url: https://daily.dev/posts/solar-supercapacitor-lamp-probably-won-t-get-you-saved-at-sea-xf2yhalef og:image: https://api.daily.dev/og/posts/XF2yhalEf.png og:image:alt: Solar Supercapacitor Lamp Probably Won’t Get You Saved At Sea og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Solar Supercapacitor Lamp Probably Won’t Get You Saved At Sea **[Hackaday](https://daily.dev/sources/hackaday)** · 2 min read · 1 upvotes · 0 comments ## Summary A DIY solar light uses supercapacitors instead of traditional rechargeable batteries for energy storage. Supercapacitors can handle over 500,000 charge/discharge cycles compared to a few thousand for batteries, potentially lasting over 1,300 years with daily use. The circuit uses a solar panel to charge the supercaps through a diode, with a transistor that activates at night to power an LED. The entire build is housed in a glass syrup jug, and design files are available on GitHub. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [2026 Green Powered Challenge: Supercapacitor Enables High-Power IoT](https://daily.dev/posts/2026-green-powered-challenge-supercapacitor-enables-high-power-iot-4bo5f8wp7) · Hackaday · 0 upvotes · 0 comments - [Building materials are getting closer to doubling as batteries](https://daily.dev/posts/building-materials-are-getting-closer-to-doubling-as-batteries-wujrcs3wg) · MIT Technology Review · 0 upvotes · 0 comments - [Innovative Supercapacitor Materials From Waste](https://daily.dev/posts/innovative-supercapacitor-materials-from-waste-2etfoduge) · IEEE Spectrum · 0 upvotes · 0 comments - [Electric Wind-Up Plane Uses Supercapacitors For Free Flight Fun](https://daily.dev/posts/electric-wind-up-plane-uses-supercapacitors-for-free-flight-fun-uyzv3n5x8) · Hackaday · 0 upvotes · 0 comments - [A supercapacitor UPS HAT for Raspberry Pi 5](https://daily.dev/posts/a-supercapacitor-ups-hat-for-raspberry-pi-5-7igettsyb) · CNX Software · 0 upvotes · 1 comments --- Tags: [#hardware](https://daily.dev/tags/hardware) [View this post on daily.dev](https://daily.dev/posts/solar-supercapacitor-lamp-probably-won-t-get-you-saved-at-sea-xf2yhalef) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Solar Supercapacitor Lamp Probably Won’t Get You Saved At Sea","url":"https://daily.dev/posts/solar-supercapacitor-lamp-probably-won-t-get-you-saved-at-sea-xf2yhalef","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/solar-supercapacitor-lamp-probably-won-t-get-you-saved-at-sea-xf2yhalef"},"datePublished":"2026-01-30T00:27:38.182Z","dateModified":"2026-01-30T00:27:57.476Z","description":"A DIY solar light uses supercapacitors instead of traditional rechargeable batteries for energy storage. Supercapacitors can handle over 500,000...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/11a381d521eacc6b0e21fd9f87a7340d?_a=AQAEulh","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/11a381d521eacc6b0e21fd9f87a7340d?_a=AQAEulh","isAccessibleForFree":true,"articleSection":"Hackaday","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Hackaday","logo":"https://media.daily.dev/image/upload/s--JhDfhy70--/f_auto,q_auto/v1767541814/logos/hackaday","url":"https://daily.dev/sources/hackaday"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/solar-supercapacitor-lamp-probably-won-t-get-you-saved-at-sea-xf2yhalef","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":1},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"hardware","timeRequired":"PT2M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Hackaday","item":"https://daily.dev/sources/hackaday"},{"@type":"ListItem","position":3,"name":"Solar Supercapacitor Lamp Probably Won’t Get You Saved At Sea"}]} ```