{"id":4727,"date":"2019-03-11T23:13:39","date_gmt":"2019-03-11T23:13:39","guid":{"rendered":"http:\/\/balconistasa.com\/?p=4727"},"modified":"2019-03-11T23:13:39","modified_gmt":"2019-03-11T23:13:39","slug":"por-que-as-baterias-para-carros-com-sistema-start-stop-sao-diferentes","status":"publish","type":"post","link":"https:\/\/balconistasa.com\/?p=4727","title":{"rendered":"Por que as baterias para carros com sistema start-stop s\u00e3o diferentes?"},"content":{"rendered":"\n

Uma das inova\u00e7\u00f5es presentes em ve\u00edculos modernos \u00e9 o mecanismo de partida start-stop, onde as chaves enfim se aposentam e a partida do carro fica a cargo de um simples bot\u00e3o. Ainda que muitos desmere\u00e7am a evolu\u00e7\u00e3o, ela diminui at\u00e9 15% o consumo de combust\u00edvel no tr\u00e2nsito urbano. Por outro lado, demanda mais energia. O que exige algumas adapta\u00e7\u00f5es, como uma bateria espec\u00edfica.
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A necessidade do componente est\u00e1 na opera\u00e7\u00e3o da partida. Nos modelos com start-stop, devido a sequ\u00eancia de acionamentos do motor de arranque e da partida no motor, pequenas descargas acontecem constantemente no \u2018para e anda\u2019 do complicado tr\u00e2nsito urbano. \u201cA partida extrai cerca de 1% da energia do componente, mas se repete v\u00e1rias vezes durante o trajeto realizado por um carro com a tecnologia start-stop\u201d, explica o engenheiro de aplica\u00e7\u00e3o da Heliar<\/a><\/em>, Marcos Randazzo.
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\"recarga<\/figure>\n\n\n\n

Para contornar a situa\u00e7\u00e3o, dois tipos de bateria foram criadas para alimentar estes carros, as EFB (da sigla em ingl\u00eas Enhanced Flooded Battery<\/em>, e em portugu\u00eas Baterias Convencionais Melhoradas<\/em>) e as AGM (em ingl\u00eas Absorbent Glass Mat<\/em>, e em portugu\u00eas Manta de Vidro Absorvido<\/em>).
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As EFB, normalmente, s\u00e3o instaladas em carros comuns com tecnologia start-stop, pois s\u00e3o capazes de sustentar toda a parte el\u00e9trica, mesmo com as constantes paradas no tr\u00e2nsito. J\u00e1 as AGM s\u00e3o direcionadas aos sistemas mais complexos, como ve\u00edculos com turbo eletr\u00f4nico e freio regenerativo, que precisam de ciclos mais profundos de energia e que demandam uma alta e r\u00e1pida absor\u00e7\u00e3o da energia recebida pelo sistema de frenagem.
<\/p>\n\n\n\n

As especifica\u00e7\u00f5es de cada uma s\u00e3o simples. Como a pr\u00f3pria sigla diz, as baterias EFB s\u00e3o uma evolu\u00e7\u00e3o das SLI (convencionais). Por isso, s\u00e3o direcionadas aos autom\u00f3veis que somente precisam de cargas r\u00e1pidas para dar um consider\u00e1vel n\u00famero de partidas ao longo do mesmo trajeto. As AGM s\u00f3 s\u00e3o diferentes por n\u00e3o terem as placas de chumbo mergulhadas numa solu\u00e7\u00e3o \u00e1cida. Elas possuem um sistema de mantas de l\u00e3 de vidro, que absorve essa subst\u00e2ncia aquosa para dar maior efici\u00eancia energ\u00e9tica nos ciclos mais profundos de carga.
<\/p>\n\n\n\n

Apesar de, teoricamente, parecerem simples, o engenheiro Marcos Randazzo destaca que \u00e9 preciso se atentar quanto a utiliza\u00e7\u00e3o do modelo correto em cada tipo de autom\u00f3vel.  \u201cNo caso de aplicar uma EFB num carro que necessita de uma AGM, ou vice-versa, \u00e9 poss\u00edvel acarretar em perdas de efici\u00eancia energ\u00e9tica e diminuir a vida \u00fatil da bateria. Al\u00e9m, ainda, de danificar os demais componentes do ve\u00edculo\u201d.
<\/p>\n","protected":false},"excerpt":{"rendered":"

Entenda o motivo da adequa\u00e7\u00e3o e as caracter\u00edsticas de cada produto<\/p>\n","protected":false},"author":1,"featured_media":4729,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[68,87],"tags":[906,142,237,907],"class_list":["post-4727","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-autopecas","category-em-pauta","tag-automotiva","tag-bateria","tag-carros","tag-start-stop"],"yoast_head":"\nPor que as baterias para carros com sistema start-stop s\u00e3o diferentes? - Balconista<\/title>\n<meta name=\"description\" content=\"A tecnologia start-stop \u00e9 respons\u00e1vel por um grande avan\u00e7o no setor automotivo. Entretanto, ela exige um tipo espec\u00edfico de bateria para os ve\u00edculos. 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