{"id":74608,"date":"2021-03-25T08:38:57","date_gmt":"2021-03-25T06:38:57","guid":{"rendered":"http:\/\/realitatearutiera.ro\/?p=74608"},"modified":"2021-03-25T09:08:19","modified_gmt":"2021-03-25T07:08:19","slug":"ce-tensiuni-o-baterie-auto-de-12-volti","status":"publish","type":"post","link":"https:\/\/realitatearutiera.ro\/?p=74608","title":{"rendered":"Ce tensiuni are o baterie auto de 12 vol\u021bi"},"content":{"rendered":"\n<p>Tensiunea la bornele bateriei ma\u0219inii reprezint\u0103 un indicator pre\u021bios asupra st\u0103rii de \u00eenc\u0103rcare \u0219i chiar de uzur\u0103 a acesteia. Tensiunea variaz\u0103 \u00een limite destul de largi, a\u0219a c\u0103 mul\u021bi sunt curio\u0219i s\u0103 afle ce tensiune are, de fapt, o baterie auto de 12 vol\u021bi.<\/p>\n\n\n\n<p>Vorbim de o baterie auto, prin urmare presupunem c\u0103 avem \u00een vedere un acumulator plumb-acid. Acesta este compus din 6 elemen\u021bi conecta\u021bi \u00een serie, fiecare gener\u00e2nd o tensiunea de aproximativ 2 vol\u021bi. Valoarea exact\u0103 a tensiunii depinde de mai mul\u021bi factori \u2013 temperatur\u0103, stare de \u00eenc\u0103rcare, sarcin\u0103 \u0219i starea general\u0103 a bateriei, printre altele.<\/p>\n\n\n\n<p>Este un fapt \u0219tiut c\u0103 o baterie uzat\u0103, posibil sulfatat\u0103, va genera o tensiune mai sc\u0103zut\u0103 la borne. Aceasta scade \u00een sarcin\u0103 \u0219i mai mult, uneori p\u00e2n\u0103 la punctul \u00een care nu mai poate fi folosit\u0103 pentru pornirea motorului. Chiar \u0219i o baterie par\u021bial desc\u0103rcat\u0103 va putea porni un motor f\u0103r\u0103 probleme dac\u0103 nu este foarte uzat\u0103, iar tensiunea \u00een sarcin\u0103 nu scade foarte mult.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ce tensiune are la borne o baterie auto de 12 vol\u021bi. Este un parametru important<\/h2>\n\n\n\n<p>Totu\u0219i, trebuie \u021binut cont de faptul c\u0103 o baterie care petrece mult timp desc\u0103rcat\u0103 va duce la acoperirea cu sulf a pl\u0103cilor de plumb, ceea ce va sc\u0103dea curentul \u00een sarcin\u0103. \u00cen practic\u0103, asta \u00eenseamn\u0103 c\u0103 la ac\u021bionarea demarorului bateria nu va putea sus\u021bine curentul mare cerut de acesta, din cauza unei rezisten\u021be interne ridicate. Aceasta va duce \u0219i la pierderi de tensiune, de unde o sc\u0103dere abrupt\u0103 a tensiunii la borne \u00een sarcin\u0103.<\/p>\n\n\n\n<p>Un bun indicator al st\u0103rii bateriei este, astfel, valoarea tensiunii la borne \u00eentr-un circuit deschis \u2013 adic\u0103 atunci c\u00e2nd bateria nu are al\u021bi consumatori. O baterie \u00eenc\u0103rcat\u0103 \u0219i \u00een stare bun\u0103 ar trebui s\u0103 aib\u0103 o tensiune mai mare de 12 vol\u021bi, probabil \u00eentre 12,6 vol\u021bi \u0219i 13,2 vol\u021bi. \u00cen timpul \u00eenc\u0103rc\u0103rii (cu motorul pornit), tensiunea indicat\u0103 poate fi mai mare, de 13,8 vol\u021bi sau chiar 14,4 vol\u021bi.<\/p>\n\n\n\n<p><a href=\"https:\/\/www.promotor.ro\/utile\/cum-protejezi-bateria-masinii-in-timpul-iernii-ca-sa-porneasca-la-sfert-18803646\">P\u0103strarea unei baterii \u00een stare perfect\u0103 de func\u021bionare<\/a>&nbsp;timp de mul\u021bi ani nu este o misiune imposibil\u0103. De la \u00eentre\u021binerea corect\u0103 la folosirea unui desulfator,&nbsp;<a href=\"https:\/\/www.promotor.ro\/utile\/cum-poti-prelungi-viata-bateriei-de-masina-18753922\">exist\u0103 multe metode prin care po\u021bi prelungi durata de via\u021b\u0103 a unei baterii auto<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tensiunea la bornele bateriei ma\u0219inii reprezint\u0103 un indicator pre\u021bios asupra st\u0103rii de \u00eenc\u0103rcare \u0219i chiar de uzur\u0103 a acesteia. Tensiunea<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"spay_email":"","footnotes":"","jetpack_publicize_message":""},"categories":[1],"tags":[],"class_list":["post-74608","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"jetpack_featured_media_url":"","jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p61naM-jpm","jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/posts\/74608","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=74608"}],"version-history":[{"count":2,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/posts\/74608\/revisions"}],"predecessor-version":[{"id":74619,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/posts\/74608\/revisions\/74619"}],"wp:attachment":[{"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=74608"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=74608"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=74608"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}