This idea sounds like it belongs in the category of \u201cgarage inventions\u201d that promise energy independence. Before you start disassembling electronics, let\u2019s take a look at what\u2019s behind this popular DIY trend.<\/p>\n\n\n\n
It\u2019s mostly about turning ordinary devices into something \u201ceternal\u201d using things you already have at home. Here are the two most common ways DIYers solve the battery dilemma:<\/p>\n\n\n\n
Principle: You replace the batteries with an old 5V adapter from your phone.
DIY trick: Since one AA battery is $1.5V, two batteries in series are $3V. If you use a 5V USB charger, you need a simple Step-Down converter (a module that you can buy for a few cents) to reduce the voltage to the required level.
Result: The device runs on mains power and you never have to buy a battery again.<\/p>\n\n\n\n
What you need: Copper wire (anode), galvanized nail (cathode), and electrolyte (lemon, potato, or a glass of vinegar).
Reality: This is a great experience for kids, but in practice it\u2019s only enough to power a calculator or a simple LCD display. You\u2019d need a whole box of potatoes for a remote control.
Comparison: Is it worth it?
Solution Advantage Disadvantage
Rechargeable batteries (NiMH) The most environmentally friendly and safest. Higher initial investment.
Conversion to USB network Completely maintenance-free. The device loses mobility (it is on a cable).
Homemade (fruit\/vinegar) Fun and educational. Very low power, impractical.
\ud83d\udca1 A real \u201cPro Tip\u201d for DIYers:
If you don\u2019t like buying batteries for your remote controls, try buying lithium AA batteries (not rechargeable, but disposable lithium). They are more expensive, but they will last 7 to 10 years in the remote control and will never leak, thus damaging the contacts.<\/p>\n\n\n\n
Safety warning: Never try to \u201ccharge\u201d classic alkaline batteries in a charger not designed for this. There is a risk of leakage or explosion. Also, be careful when connecting old Li-ion cells from laptops – without protective electronics, they are small explosives.<\/p>\n\n\n\n
Do you have a specific device at home (like an old radio or a toy) that “eats” batteries too quickly? I can advise you on how to convert it to charge via USB-C. Would you like a tutorial?<\/p>\n","protected":false},"excerpt":{"rendered":"
This idea sounds like it belongs in the category of \u201cgarage inventions\u201d that promise energy independence. Before you start disassembling electronics, let\u2019s take a look at what\u2019s behind this popular […]<\/p>\n","protected":false},"author":2,"featured_media":18668,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-18667","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nteresting"],"_links":{"self":[{"href":"https:\/\/www.tastyfood.top\/index.php?rest_route=\/wp\/v2\/posts\/18667","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.tastyfood.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tastyfood.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tastyfood.top\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tastyfood.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=18667"}],"version-history":[{"count":1,"href":"https:\/\/www.tastyfood.top\/index.php?rest_route=\/wp\/v2\/posts\/18667\/revisions"}],"predecessor-version":[{"id":18669,"href":"https:\/\/www.tastyfood.top\/index.php?rest_route=\/wp\/v2\/posts\/18667\/revisions\/18669"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.tastyfood.top\/index.php?rest_route=\/wp\/v2\/media\/18668"}],"wp:attachment":[{"href":"https:\/\/www.tastyfood.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=18667"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tastyfood.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=18667"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tastyfood.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=18667"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}