{"id":20394,"date":"2023-01-29T06:40:46","date_gmt":"2023-01-29T06:40:46","guid":{"rendered":"https:\/\/lemon-iot.com\/?post_type=product&#038;p=20394"},"modified":"2025-09-11T16:40:35","modified_gmt":"2025-09-11T07:10:35","slug":"lemon-iot-battery-board","status":"publish","type":"product","link":"https:\/\/lemon-iot.com\/index.php\/product\/lemon-iot-battery-board\/","title":{"rendered":"Lemon IoT &#8211; Battery board"},"content":{"rendered":"<p>Power your Lemon IoT system with this battery board which features a li-ion battery solar charger with battery protection!<\/p>\n<h3>Features<\/h3>\n<ul>\n<li>Li-Ion battery solar\u00a0charger<\/li>\n<li>Li-ion battery connection via JST\u00a0connector. Compatible with Adafruit batteries:\u00a0<a title=\"https:\/\/www.adafruit.com\/category\/889\" href=\"https:\/\/www.adafruit.com\/category\/889\" rel=\"noopener noreferrer\" data-sanitized-target=\"_blank\">https:\/\/www.adafruit.com\/category\/889<\/a><\/li>\n<li>Efficient buck-boost convertor to get all the energy out of the battery (down to 2.8V)!<\/li>\n<li>Access to all GPIO pins for full customisation.<\/li>\n<li>Stackable construction.<\/li>\n<li>Interfaces: UART expansion header<\/li>\n<li>Output voltage: 3.3V 800mA buck and 250mA in boost mode.<\/li>\n<\/ul>\n<h3>Kit contains<\/h3>\n<ul>\n<li>1x\u00a0Lemon IoT battery board<\/li>\n<li>2x pin strip headers AND 2x stackable header to be soldered by end user as desired.<\/li>\n<\/ul>\n<h3>Technical specification<\/h3>\n<ul>\n<li>Li-Ion battery protection using a\u00a0<a title=\"TI BQ2970 family\" href=\"https:\/\/www.ti.com\/product\/BQ2970\" data-sanitized-target=\"_blank\">TI BQ29702<\/a>\u00a0IC; OVP 4.35V and UVP 2.80V.<\/li>\n<li>Li-Ion solar charger based on\u00a0<a title=\"TI BQ24210\" href=\"https:\/\/www.ti.com\/product\/BQ24210\" data-sanitized-target=\"_blank\">TI BQ24210<\/a>. Default charge current is\u00a0330mA but can be modified (R6) &#8211; requires soldering an 0603-sized resistor.<\/li>\n<li>Solar panel voltage set to 5.5 &#8211; 6V (can be modified &#8211; requires soldering).<\/li>\n<li>Solar panel connection via Molex 2-pin connector (supplied unsoldered).<\/li>\n<li>Buck-boost DC-DC convertor (<a title=\"TI TPS63031\" href=\"https:\/\/www.ti.com\/product\/TPS63031\" data-sanitized-target=\"_blank\">TI TPS63031<\/a>) to get the most out of the battery!<\/li>\n<li>Output voltage is 3.3V\u00a0and current tested at 800mA in buck mode\u00a0or 250mA\u00a0in boost mode.<\/li>\n<li>Output voltage is available on two pins.<\/li>\n<\/ul>\n<h3>Downloads<\/h3>\n<ul>\n<li><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Power your Lemon IoT system with this battery board which features a li-ion battery solar charger with battery protection!<\/p>\n","protected":false},"featured_media":20395,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[114],"product_tag":[],"class_list":{"0":"post-20394","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-lemon-power","8":"first","9":"instock","10":"taxable","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - 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