{"id":11989,"date":"2026-03-26T16:24:15","date_gmt":"2026-03-26T08:24:15","guid":{"rendered":"https:\/\/www.balderpower.com\/?post_type=product&p=11989"},"modified":"2026-04-02T00:15:00","modified_gmt":"2026-04-01T16:15:00","slug":"apple-watch-series-5-se-battery-a2277-a2181","status":"publish","type":"product","link":"https:\/\/www.balderpower.com\/es\/apple-watch-series-5-se-battery-a2277-a2181\/","title":{"rendered":"Bater\u00eda A2277 \/ A2181 para Apple Watch Series 5 y SE | 40 mm 245 mAh y 44 mm 296 mAh. Repuesto para modelos MKNC2LL\/A."},"content":{"rendered":"

Apple Watch battery replacement is technically different from iPad or iPhone battery work \u2014 and the margin for error is smaller. The Apple Watch Series 5 and Apple Watch SE share the same battery architecture across both the 40mm and 44mm variants. The 40mm uses P\/N A2277 at 245mAh \/ 3.82V; the 44mm uses A2181 at 296mAh \/ 3.82V. Both are single-cell Li-Polymer designs in compact form factors where dimensional tolerance is a direct safety variable.<\/p>\n

The Watch display is OLED, adhered to the case with heat-activated adhesive. To access the battery, a repair technician must apply heat (typically 70\u201380\u00b0C) to soften that adhesive before separating the display. A battery that is even 0.15mm thicker than spec will prevent the display from re-seating flush after replacement \u2014 causing either a visible gap, sensor contact failure, or permanent display damage if forced. Our cells are manufactured to \u00b10.1mm dimensional tolerance. This is not a marketing claim \u2014 it’s a measurable production spec that determines whether a Watch repair ends cleanly or generates a comeback.<\/p>\n

Modelos compatibles verificados:<\/strong><\/p>\n

\n
\n\n\n\n\n\n\n\n\n
Dispositivo<\/th>\nTama\u00f1o<\/th>\nApple Model IDs<\/th>\nN\u00famero de pieza de la bater\u00eda<\/th>\nCapacidad<\/th>\n<\/tr>\n<\/thead>\n
Apple Watch Series 5<\/td>\n40mm<\/td>\nA2092, A2157<\/td>\nA2277<\/td>\n245 mAh<\/td>\n<\/tr>\n
Apple Watch Series 5<\/td>\n44mm<\/td>\nA2093, A2094, A2156<\/td>\nA2181<\/td>\n296 mAh<\/td>\n<\/tr>\n
Apple Watch SE (1st Gen, 2020)<\/td>\n40mm<\/td>\nA2351, A2352<\/td>\nA2277<\/td>\n245 mAh<\/td>\n<\/tr>\n
Apple Watch SE (1st Gen, 2020)<\/td>\n44mm<\/td>\nA2353, A2354<\/td>\nA2181<\/td>\n296 mAh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
\n

\u26a0\ufe0f Not compatible with Apple Watch SE 2nd Gen (2022) \u2014 different battery P\/N. Not compatible with Series 4 \u2014 while the form factor is similar, Series 4 uses A1975 (40mm) and A1976 (44mm), different P\/Ns. Always verify the exact Watch model number before ordering.<\/p>\n<\/blockquote>","protected":false},"excerpt":{"rendered":"

    \n
  • \n

    \u2705 Fits Apple Watch Series 5 (40mm & 44mm) and Apple Watch SE 1st Gen (2020, 40mm & 44mm) \u2014 P\/N A2277 (40mm, 245mAh) and A2181 (44mm, 296mAh)<\/p>\n<\/li>\n

  • \n

    \u2705 Precision-spec’d cells: \u00b10.1mm dimensional tolerance \u2014 critical for OLED-safe installation without display heat damage<\/p>\n<\/li>\n

  • \n

    \u2705 Supports full ECG, blood oxygen, and heart rate sensor functionality post-replacement; no sensor calibration errors<\/p>\n<\/li>\n

  • \n

    \u2705 Factory direct \u2014 both size variants available; custom labeling from 200 pcs; 12-month warranty; DOA < 0.3%<\/p>\n<\/li>\n<\/ul>","protected":false},"featured_media":11995,"template":"","meta":{"_acf_changed":false,"nf_dc_page":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"_joinchat":[]},"product_brand":[],"product_cat":[1015],"product_tag":[1352,1254,1351,1353,1350,1255,1354,1256,1257,1258],"class_list":["post-11989","product","type-product","status-publish","has-post-thumbnail","product_cat-apple-watch-battery-wholesale-china","product_tag-40mm-44mm-smartwatch-battery-supplier","product_tag-a2181-battery","product_tag-a2277-a2181-watch-battery-oem","product_tag-apple-watch-battery-repair-shop-bulk","product_tag-apple-watch-s5-se-battery-wholesale","product_tag-apple-watch-series-5-battery","product_tag-ce-fcc-watch-battery-factory-direct","product_tag-iwatch-se-44mm-battery","product_tag-smartwatch-battery-wholesale","product_tag-watch-battery-oem-supplier","desktop-align-left","tablet-align-left","mobile-align-left","ast-product-gallery-layout-horizontal-slider","ast-product-tabs-layout-horizontal","first","instock","shipping-taxable","purchasable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.balderpower.com\/es\/wp-json\/wp\/v2\/product\/11989","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.balderpower.com\/es\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.balderpower.com\/es\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":0,"href":"https:\/\/www.balderpower.com\/es\/wp-json\/wp\/v2\/product\/11989\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.balderpower.com\/es\/wp-json\/wp\/v2\/media\/11995"}],"wp:attachment":[{"href":"https:\/\/www.balderpower.com\/es\/wp-json\/wp\/v2\/media?parent=11989"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.balderpower.com\/es\/wp-json\/wp\/v2\/product_brand?post=11989"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.balderpower.com\/es\/wp-json\/wp\/v2\/product_cat?post=11989"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.balderpower.com\/es\/wp-json\/wp\/v2\/product_tag?post=11989"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}