{"id":80615,"date":"2024-01-14T13:12:35","date_gmt":"2024-01-14T13:12:35","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/caracteristicas-e-tipos-de-pilhas-aaa-tensao-e-capacidade\/"},"modified":"2024-01-20T09:55:51","modified_gmt":"2024-01-20T09:55:51","slug":"caracteristicas-e-tipos-de-pilhas-aaa-tensao-e-capacidade","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/pt-br\/caracteristicas-e-tipos-de-pilhas-aaa-tensao-e-capacidade\/","title":{"rendered":"Caracter\u00edsticas e tipos de pilhas AAA | Tens\u00e3o e Capacidade"},"content":{"rendered":"<h2>Caracter\u00edsticas das Baterias AAAA<\/h2>\n<h2>Introdu\u00e7\u00e3o \u00e0s Baterias AAAA<\/h2>\n<p>As baterias AAAA, apesar de menos comuns do que as baterias AA ou AAA, s\u00e3o essenciais em muitos dispositivos eletr\u00f4nicos port\u00e1teis, brinquedos e controles remotos. Sua constru\u00e7\u00e3o varia em diferentes qu\u00edmicas, influenciando diretamente na tens\u00e3o terminal, capacidade e taxas de descarga pr\u00e1ticas. Geralmente, dispositivos projetados para c\u00e9lulas AAAA operam com tens\u00f5es de 1.2 a 1.5 V, a menos que o fabricante especifique de outra forma.<\/p>\n<h2>Tipos de Baterias AAAA<\/h2>\n<p>As baterias AAAA dividem-se em dois tipos principais: prim\u00e1rias e secund\u00e1rias.<\/p>\n<ul>\n<li><strong>Bateria Prim\u00e1ria:<\/strong> Inclui as baterias alcalinas, de l\u00edtio met\u00e1lico, zinco-carbono e zinco-cloro. Essas baterias s\u00e3o descart\u00e1veis e n\u00e3o recarreg\u00e1veis.<\/li>\n<li><strong>Bateria Secund\u00e1ria:<\/strong> Engloba as baterias de NiMH (n\u00edquel-metal hidreto) e NiCd (n\u00edquel-c\u00e1dmio). S\u00e3o recarreg\u00e1veis e utilizadas em aplica\u00e7\u00f5es de alto consumo.<\/li>\n<\/ul>\n<h2>Dimens\u00f5es e Peso<\/h2>\n<p>Uma bateria AAAA t\u00edpica mede 42.5 mm de comprimento e 8.3 mm de di\u00e2metro, com o peso de uma c\u00e9lula alcalina girando em torno de 6.5 g. Elas s\u00e3o frequentemente utilizadas em dispositivos pequenos, como ponteiros laser, canetas com LED, estiletes para computadores, medidores de glicose e amplificadores de fone de ouvido.<\/p>\n<h2>Compara\u00e7\u00e3o e Usos das Baterias AAAA<\/h2>\n<p>As baterias AAAA s\u00e3o menos populares e dispon\u00edveis que as AA ou AAA, mas s\u00e3o cruciais em certos dispositivos como os estiletes da Microsoft Surface. Al\u00e9m disso, c\u00e9lulas LR61 de baterias alcalinas de nove volts podem ser usadas em substitui\u00e7\u00e3o \u00e0s AAAA em alguns dispositivos, apesar de serem ligeiramente menores.<\/p>\n<h2>Caracter\u00edsticas Espec\u00edficas<\/h2>\n<ul>\n<li><strong>Tens\u00e3o da C\u00e9lula:<\/strong> Varia conforme a qu\u00edmica da bateria. Baterias alcalinas possuem cerca de 1.5 V.<\/li>\n<li><strong>Tens\u00e3o de Corte:<\/strong> \u00c9 a tens\u00e3o m\u00ednima permitida, definindo o estado &#8220;vazio&#8221; da bateria. Para NiMH ou NiCd, geralmente \u00e9 de 1.0 V por c\u00e9lula, enquanto para alcalinas \u00e9 de 0.9 V.<\/li>\n<li><strong>Capacidade:<\/strong> Medida em mAh, a capacidade varia de 300 (NiMH) a 500 mAh (alcalina) para as baterias AAAA.<\/li>\n<li><strong>Taxa de C:<\/strong> Indica a velocidade de descarga em rela\u00e7\u00e3o \u00e0 capacidade m\u00e1xima. Uma taxa de 1C significa que a corrente de descarga esgotar\u00e1 a bateria em 1 hora.<\/li>\n<li><strong>Autodescarga:<\/strong> As baterias se descarregam gradualmente mesmo quando n\u00e3o est\u00e3o em uso. As alcalinas t\u00eam baixa taxa de autodescarga, perdendo cerca de 2 a 3% de sua carga original por ano.<\/li>\n<\/ul>\n<h2>Degrada\u00e7\u00e3o e Ciclo de Vida<\/h2>\n<p>A degrada\u00e7\u00e3o ocorre em baterias recarreg\u00e1veis a cada ciclo de carga e descarga. As baterias NiMH t\u00eam um ciclo de vida t\u00edpico de 700 a 1.000 ciclos.<\/p>\n<h2>Outros Tipos de Baterias<\/h2>\n<p>Al\u00e9m das AAAA, existem diversos outros tipos de baterias, classificadas por tamanho, qu\u00edmica e aplica\u00e7\u00e3o. Elas variam desde as comuns AA e AAA at\u00e9 as especializadas, como as baterias de l\u00edtio-ion, usadas em ve\u00edculos el\u00e9tricos e dispositivos port\u00e1teis.<\/p>\n<h2>Conclus\u00e3o<\/h2>\n<p>Embora n\u00e3o t\u00e3o comuns quanto outros tipos, as baterias AAAA desempenham um papel vital em muitos dispositivos eletr\u00f4nicos pequenos. A compreens\u00e3o de suas caracter\u00edsticas, tipos e usos \u00e9 crucial para escolher a bateria certa para cada aplica\u00e7\u00e3o.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.electricity-magnetism.org\/wp-content\/uploads\/2022\/11\/AAAA-battery-size-weight-applications.png\" alt=\"\" \/><\/p>\n<div style=\"text-align: center; font-size: 20px;\">\n    <a href=\"https:\/\/www.electricity-magnetism.org\/electric-battery\/characteristics-of-aaaa-batteries\/\">Original Article<\/a>\n<\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Uma bateria alcalina ou NiMH t\u00edpica no tamanho padr\u00e3o \u201cAAAA\u201d tem cerca de 300 (NiMH) a 500 mAh (alcalina). As baterias AAAA v\u00eam em diferentes produtos qu\u00edmicos.<\/p>\n","protected":false},"author":1,"featured_media":5132,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[14],"tags":[],"class_list":["post-80615","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nao-categorizado","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Caracter\u00edsticas e tipos de pilhas AAA | Tens\u00e3o e Capacidade<\/title>\n<meta name=\"description\" content=\"Uma bateria alcalina ou NiMH t\u00edpica no tamanho padr\u00e3o \u201cAAAA\u201d tem cerca de 300 (NiMH) a 500 mAh (alcalina). 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