{"id":14176,"date":"2025-03-20T11:06:16","date_gmt":"2025-03-20T10:06:16","guid":{"rendered":"https:\/\/www.altuna.es\/herramienta\/bateria-21-v-4-ah-pro\/"},"modified":"2026-02-16T15:00:24","modified_gmt":"2026-02-16T14:00:24","slug":"bateria-21-v-4-ah-pro","status":"publish","type":"product","link":"https:\/\/www.altuna.es\/en\/herramienta\/bateria-21-v-4-ah-pro\/","title":{"rendered":"21 V – 4 Ah PRO BATTERY"},"content":{"rendered":"\n

The ALTUNA 21V 4Ah lithium-ion battery<\/strong> combines power, lightness and durability<\/strong> in a compact format designed to offer maximum energy efficiency<\/strong> in ALTUNA shears and pruning tools.<\/p>\n\n

Its state-of-the-art Li-ion cell technology<\/strong> ensures a constant discharge, with no power loss even under demanding conditions. In addition, its internal electronic management<\/strong> system (BMS)<\/strong> protects against overcharging, overheating and over discharging<\/strong>, significantly extending battery life. <\/p>\n\n

With reduced weight and improved ergonomics, this battery offers superior autonomy<\/strong> for long working days in vineyards, orchards, olive groves or professional gardening<\/strong>, while maintaining a clean and powerful cut.<\/p>\n\n

\n\n

Key benefits<\/strong><\/h2>\n\n
    \n
  • State-of-the-art Li-ion technology<\/strong>: more energy with less weight.<\/li>\n\n\n\n
  • Constant power<\/strong> until the end of the load.<\/li>\n\n\n\n
  • Electronic protection (BMS)<\/strong>: prevents overloads and overheating.<\/li>\n\n\n\n
  • Fast<\/strong> and efficient charging<\/strong> with ALTUNA compatible charger.<\/li>\n\n\n\n
  • Lightweight, ergonomic design<\/strong> reduces fatigue.<\/li>\n\n\n\n
  • Ideal for professional pruning and intensive use<\/strong>.<\/li>\n<\/ul>\n\n
    \n\n

    Technical specifications<\/strong><\/h2>\n\n

    Approximate weight:<\/strong> 0.4 kg<\/p>\n\n

    Brand:<\/strong> ALTUNA<\/p>\n\n

    Rated voltage:<\/strong> 21V<\/p>\n\n

    Capacity:<\/strong> 4 Ah<\/p>\n\n

    Battery type:<\/strong> Lithium-ion (Li-ion)<\/p>\n\n

    Protection:<\/strong> Integrated BMS system<\/p>\n\n

    <\/p>\n\n

    <\/p>\n","protected":false},"excerpt":{"rendered":"

    ALTUNA AF28 battery pruning shears with titanium blade. <\/strong>Designed for those who are new to battery pruning, it is ideal for gardening and simple pruning jobs. It has a double cutting opening of 19 mm and 28 mm, offering greater versatility. Like all the tools in our FIRST<\/strong> range, it stands out for its ease of use and high performance.<\/p>\n","protected":false},"featured_media":3235,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":true},"product_cat":[750,751],"product_tag":[],"class_list":["post-14176","product","type-product","status-publish","has-post-thumbnail","product_cat-accesorios-bateria","product_cat-corte-y-poda-a-bateria","first","instock","shipping-taxable","product-type-simple","rey-swatches",""],"acf":[],"yoast_head":"\n21 V - 4 Ah PRO BATTERY - Altuna Group<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.altuna.es\/herramienta\/bateria-21-v-4-ah-pro\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"21 V - 4 Ah PRO BATTERY - Altuna Group\" \/>\n<meta property=\"og:description\" content=\"ALTUNA AF28 battery pruning shears with titanium blade. Designed for those who are new to battery pruning, it is ideal for gardening and simple pruning jobs. It has a double cutting opening of 19 mm and 28 mm, offering greater versatility. 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