Warning: is_file(): open_basedir restriction in effect. File(/usr/www/users/engagcgssa//index.php/wp-json/wp/v2/product/7561) is not within the allowed path(s): (/usr/www/wwws/users/engagcgssa:/usr/wwws/users/engagcgssa:/usr/www/users/engagcgssa:/usr/home/engagcgssa:/usr/local/rmagic:/usr/share/php:/usr/local/lib/php:/tmp:/usr/bin:/usr/local/bin:/usr/local/share/www:/usr/www/share/www:/usr/share/misc:/dev/urandom:/var/www/php_profiler/xhgui) in /usr/www/users/engagcgssa/wp-content/plugins/jetpack-boost/app/modules/optimizations/page-cache/pre-wordpress/class-boost-cache-utils.php on line 80 Warning: Cannot modify header information - headers already sent by (output started at /usr/www/users/engagcgssa/wp-content/plugins/jetpack-boost/app/modules/optimizations/page-cache/pre-wordpress/class-boost-cache-utils.php:80) in /usr/www/users/engagcgssa/wp-includes/rest-api/class-wp-rest-server.php on line 1909 Warning: Cannot modify header information - headers already sent by (output started at /usr/www/users/engagcgssa/wp-content/plugins/jetpack-boost/app/modules/optimizations/page-cache/pre-wordpress/class-boost-cache-utils.php:80) in /usr/www/users/engagcgssa/wp-includes/rest-api/class-wp-rest-server.php on line 1909 Warning: Cannot modify header information - headers already sent by (output started at /usr/www/users/engagcgssa/wp-content/plugins/jetpack-boost/app/modules/optimizations/page-cache/pre-wordpress/class-boost-cache-utils.php:80) in /usr/www/users/engagcgssa/wp-includes/rest-api/class-wp-rest-server.php on line 1909 Warning: Cannot modify header information - headers already sent by (output started at /usr/www/users/engagcgssa/wp-content/plugins/jetpack-boost/app/modules/optimizations/page-cache/pre-wordpress/class-boost-cache-utils.php:80) in /usr/www/users/engagcgssa/wp-includes/rest-api/class-wp-rest-server.php on line 1909 Warning: Cannot modify header information - headers already sent by (output started at /usr/www/users/engagcgssa/wp-content/plugins/jetpack-boost/app/modules/optimizations/page-cache/pre-wordpress/class-boost-cache-utils.php:80) in /usr/www/users/engagcgssa/wp-includes/rest-api/class-wp-rest-server.php on line 1909 Warning: Cannot modify header information - headers already sent by (output started at /usr/www/users/engagcgssa/wp-content/plugins/jetpack-boost/app/modules/optimizations/page-cache/pre-wordpress/class-boost-cache-utils.php:80) in /usr/www/users/engagcgssa/wp-includes/rest-api/class-wp-rest-server.php on line 1909 Warning: Cannot modify header information - headers already sent by (output started at /usr/www/users/engagcgssa/wp-content/plugins/jetpack-boost/app/modules/optimizations/page-cache/pre-wordpress/class-boost-cache-utils.php:80) in /usr/www/users/engagcgssa/wp-includes/rest-api/class-wp-rest-server.php on line 1909 Warning: Cannot modify header information - headers already sent by (output started at /usr/www/users/engagcgssa/wp-content/plugins/jetpack-boost/app/modules/optimizations/page-cache/pre-wordpress/class-boost-cache-utils.php:80) in /usr/www/users/engagcgssa/wp-includes/rest-api/class-wp-rest-server.php on line 1909 {"id":7561,"date":"2025-03-17T16:59:36","date_gmt":"2025-03-17T14:59:36","guid":{"rendered":"https:\/\/engageoptics.co.za\/?post_type=product&p=7561"},"modified":"2026-07-28T13:18:39","modified_gmt":"2026-07-28T11:18:39","slug":"samsung-21700-battery-for-tnc335","status":"publish","type":"product","link":"https:\/\/engageoptics.co.za\/index.php\/product\/samsung-21700-battery-for-tnc335\/","title":{"rendered":"Samsung 21700 Battery for TNC335, TNC635, Zulus V2"},"content":{"rendered":"

The Samsung INR21700-50E li-ion battery is one of the most powerful and reliable cells available in the 21700 size, and boasts a 5,000mAh capacity that’s sure to keep your electronic devices running longer. The battery is often used for consumer-devices that require a high discharge rating, and are often built into small 21700 battery packs. The ICR chemistry should always be used with protective circuitry.<\/p>\n

Quick Spec
\nTechnology: Li-ion
\nCapacity: 5000mAh
\nForm Factor: 21700
\nMin. Capacity: 4753mAh
\nNominal Voltage: 3.6V – 3.7V
\nEnd-of-charge Voltage: 4.2V
\nEnd-of-discharge Voltage: 2.5V
\nMax. Current Output Constant: 9.8A
\nMax. Current Output Pulse: 14.7A
\nCharging Current: 2.45A
\nMax. Charging Current: 4.9A
\nNo Protection Circuit
\nPositive Pole (structure): flat top
\nDimensions: 21.2 x 70.7mm
\nNet Weight: 70g<\/p>\n","protected":false},"excerpt":{"rendered":"

Samsung 21700 5000mA 3.7V Li-ion Battery for the DNT TNC335<\/p>\n","protected":false},"featured_media":7562,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[130],"product_cat":[111],"product_tag":[],"class_list":{"0":"post-7561","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-dnt-optics","7":"product_cat-accessories-for-night-vision","8":"post","10":"first","11":"outofstock","12":"taxable","13":"shipping-taxable","14":"purchasable","15":"product-type-simple"},"composite_virtual":false,"composite_layout":"","composite_add_to_cart_form_location":"","composite_editable_in_cart":false,"composite_sold_individually_context":"","composite_shop_price_calc":"","composite_components":[],"composite_scenarios":[],"yoast_head":"\nSamsung 21700 Battery for TNC335, TNC635, Zulus V2 - Engage Optics<\/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:\/\/engageoptics.co.za\/index.php\/product\/samsung-21700-battery-for-tnc335\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Samsung 21700 Battery for TNC335, TNC635, Zulus V2 - 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