{"id":1341929,"date":"2026-03-07T09:16:37","date_gmt":"2026-03-07T07:16:37","guid":{"rendered":"https:\/\/digibit.ee\/product\/fenix-arb-l21-5000u-21700-akkuparisto\/"},"modified":"2026-06-15T06:02:08","modified_gmt":"2026-06-15T03:02:08","slug":"fenix-arb-l21-5000u-21700-akkuparisto","status":"publish","type":"product","link":"https:\/\/digibit.ee\/en\/product\/fenix-arb-l21-5000u-21700-akkuparisto\/","title":{"rendered":"Fenix ARB-L21-5000U 21700 Battery Pack"},"content":{"rendered":"<p><strong>The Fenix ARB-L21-5000U is a high-quality 5000 mAh Li-ion battery equipped with a USB-C connector. The Fenix ARB-L21-5000U battery can be charged directly via the fast USB-C charging port located on the battery. The battery can also be charged in a charger.<\/strong><\/p>\n<p>The capacity of the Fenix ARB-L21-5000U battery is twice that of a conventional 18650\/2300 mAh battery. The battery is safe to use as it is protected by multiple safety circuits and a steel cylinder casing that guards against external shocks and impacts. The Fenix ARB-L21-5000U battery is suitable for applications requiring high capacity and long usage time.<\/p>\n<p>Please note that the 21700 battery does not fit devices designed for 18650 batteries due to its larger physical size. It only fits devices designed for 21700-sized batteries.<\/p>\n<p><strong>Features:<\/strong><\/p>\n<ul>\n<li>Type: 21700<\/li>\n<li>Nominal voltage: 3.6 V<\/li>\n<li>Capacity: 5000 mAh<\/li>\n<li>Charging current: recommended 1 A, max. 5 A<\/li>\n<li>Discharge current: 8 A (max)<\/li>\n<li>Charging status indicated by LED lights (red = charging, blue = charge complete)<\/li>\n<li>USB-C charging port (USB-C cable sold separately)<\/li>\n<li>Can also be charged in a conventional charger (Recommended chargers: Fenix ARE-D1, Fenix ARE-D2)<\/li>\n<li>Advanced protection circuit<\/li>\n<li>After 500 charge cycles, approximately 75% of the battery capacity remains<\/li>\n<li>Multiple battery pack protections (overcharge protection, over-discharge protection, short circuit protection, overheating protection)<\/li>\n<li>Steel protective structure effectively shields the battery from potential impact-induced short circuits and other hazards<\/li>\n<li>Dimensions: \u00d8 21.5 x 76 mm<\/li>\n<li>Weight: 72.5 g<\/li>\n<li>Warranty: 12 months<\/li>\n<li>Packaging: 1 piece blister pack<\/li>\n<\/ul>\n<p><!-- taskulamppu --><\/p>\n","protected":false},"excerpt":{"rendered":"<ul>\n<li>USB-rechargeable battery pack<\/li>\n<li>Steel cylinder structure<\/li>\n<li>No need for a separate charger.<\/li>\n<li>Safest Li-ion battery pack<\/li>\n<\/ul>\n","protected":false},"featured_media":999999999,"template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[16800,36799,37317,17230,19920,39510,36803,16802],"product_tag":[],"class_list":["post-1341929","product","type-product","status-publish","has-post-thumbnail","product_cat-patareid-akud-ja-laadijad","product_cat-batteries-accumulators-and-chargers-en","product_cat-barefoot-and-gatekeepers-en","product_cat-telakat-ja-porttitoistimet","product_cat-office","product_cat-office-en","product_cat-rechargeable-batteries-en","product_cat-ladattavat-akkuparistot","first","onbackorder","taxable","shipping-taxable","purchasable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/digibit.ee\/en\/wp-json\/wp\/v2\/product\/1341929","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/digibit.ee\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/digibit.ee\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:attachment":[{"href":"https:\/\/digibit.ee\/en\/wp-json\/wp\/v2\/media?parent=1341929"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/digibit.ee\/en\/wp-json\/wp\/v2\/product_brand?post=1341929"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/digibit.ee\/en\/wp-json\/wp\/v2\/product_cat?post=1341929"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/digibit.ee\/en\/wp-json\/wp\/v2\/product_tag?post=1341929"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}