{"id":716,"date":"2015-07-29T14:31:14","date_gmt":"2015-07-29T14:31:14","guid":{"rendered":"http:\/\/www.donluc.com\/?p=716"},"modified":"2015-07-29T14:31:14","modified_gmt":"2015-07-29T14:31:14","slug":"adafruit-usbdc-lithium-polymer-battery-charger-5-12v-3-74-2v-cells","status":"publish","type":"post","link":"https:\/\/www.donluc.com\/?p=716","title":{"rendered":"Adafruit &#8211; USB\/DC Lithium Polymer battery charger 5-12V &#8211; 3.7\/4.2v cells"},"content":{"rendered":"<p><a href=\"https:\/\/www.donluc.com\/wp-content\/uploads\/2015\/07\/Adafruit280Mk01.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.donluc.com\/wp-content\/uploads\/2015\/07\/Adafruit280Mk01.jpg\" alt=\"Adafruit 280 Mk01\" width=\"640\" height=\"480\" class=\"alignnone size-full wp-image-717\" srcset=\"https:\/\/www.donluc.com\/wp-content\/uploads\/2015\/07\/Adafruit280Mk01.jpg 640w, https:\/\/www.donluc.com\/wp-content\/uploads\/2015\/07\/Adafruit280Mk01-300x225.jpg 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/www.donluc.com\/wp-content\/uploads\/2015\/07\/Adafruit280Mk02.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.donluc.com\/wp-content\/uploads\/2015\/07\/Adafruit280Mk02.jpg\" alt=\"Adafruit 280 Mk02\" width=\"640\" height=\"480\" class=\"alignnone size-full wp-image-718\" srcset=\"https:\/\/www.donluc.com\/wp-content\/uploads\/2015\/07\/Adafruit280Mk02.jpg 640w, https:\/\/www.donluc.com\/wp-content\/uploads\/2015\/07\/Adafruit280Mk02-300x225.jpg 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/www.donluc.com\/wp-content\/uploads\/2015\/07\/Adafruit280Mk03.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.donluc.com\/wp-content\/uploads\/2015\/07\/Adafruit280Mk03.jpg\" alt=\"Adafruit 280 Mk03\" width=\"640\" height=\"480\" class=\"alignnone size-full wp-image-719\" srcset=\"https:\/\/www.donluc.com\/wp-content\/uploads\/2015\/07\/Adafruit280Mk03.jpg 640w, https:\/\/www.donluc.com\/wp-content\/uploads\/2015\/07\/Adafruit280Mk03-300x225.jpg 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p><strong>Adafruit:<\/strong> 280<\/p>\n<p><strong>Description<\/strong><\/p>\n<p>Charge your single-cell lithium ion\/polymer battery any which way you like with this board. Have a USB connection? No problem, just plug into the miniUSB connector. Only have a wall adapter? Any standard 2.1mm DC adapter which puts out 5 to 12VDC will work fine. If both are plugged in, the charger will automatically choose whichever has the highest voltage.<\/p>\n<p>Other nice things about this charger include multiple LEDs for power &#038; charging status, including a charging LED which will blink when the battery is full. If the charger gets too hot from high-speed charging, it will slow down the charge rate automatically. You can easily adjust the charge rate up to 1.2A or down to 100mA.<\/p>\n<p>For use with Adafruit Lipoly\/LiIon batteries only! Other batteries may have different voltage, chemistry, polarity or pinout.<\/p>\n<ul>\n<li>Use USB or DC power &#8211; 5 to 12V input<\/li>\n<li>Charges one single-cell 3.7\/4.2v batteries (not for older 3.6\/4.1v cells) with constant current\/constant voltage<\/li>\n<li>Three indicator LEDs &#8211; green for Power, orange for charging and red for error<\/li>\n<li>Charging LED will blink when the battery is full<\/li>\n<li>You don&#8217;t have to worry about heat dissipation in the charger, even when plugging in a 12V DC power jack &#8211; thermal protection inside will slow down the charge rate to prevent damage<\/li>\n<li>2 JST connections so you can keep the battery plugged in and powering your project<br \/>\nTerminal block connections galore (if you don&#8217;t like JST connectors) just solder in 3.5mm terminal blocks<\/li>\n<li>Default charge rate is about 500mA, but you can easily change this by soldering in a through-hole resistor on. The chip can do 100-1200 mA charging<\/li>\n<li>Safety timer will stop charging after about 14 hours<\/li>\n<li>The chip supports a standard 10K thermistor, which we have stuffed as a standard resistor. You can solder in a thermistor easily<\/li>\n<li>Lots of information in the datasheet for the MCP73861<\/li>\n<li>Fully assembled, tested and comes with a free JST cable<\/li>\n<\/ul>\n<p><strong>Technical Details<\/strong><\/p>\n<p><strong>Details:<\/strong><\/p>\n<ul>\n<li><strong>Dimensions:<\/strong> 40mm x 44mm x 13mm (1.6in x 1.7in x 0.5in)<\/li>\n<li><strong>Weight:<\/strong> 11.7g ( 0.4oz)<\/li>\n<\/ul>\n<p><strong>Don Luc<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Adafruit: 280 Description Charge your single-cell lithium ion\/polymer battery any which way you like with this board. Have a USB connection? No problem, just plug into the miniUSB connector. Only have a wall adapter? Any standard 2.1mm DC adapter which puts out 5 to 12VDC will work fine. If both are plugged in, the charger &#8230; <a title=\"Adafruit &#8211; USB\/DC Lithium Polymer battery charger 5-12V &#8211; 3.7\/4.2v cells\" class=\"read-more\" href=\"https:\/\/www.donluc.com\/?p=716\" aria-label=\"Read more about Adafruit &#8211; USB\/DC Lithium Polymer battery charger 5-12V &#8211; 3.7\/4.2v cells\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47,50,38,5,7],"tags":[],"class_list":["post-716","post","type-post","status-publish","format-standard","hentry","category-adafruit","category-arduino","category-digitalelectronics","category-microcontrollers","category-musical-instruments"],"_links":{"self":[{"href":"https:\/\/www.donluc.com\/index.php?rest_route=\/wp\/v2\/posts\/716","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.donluc.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.donluc.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.donluc.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.donluc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=716"}],"version-history":[{"count":2,"href":"https:\/\/www.donluc.com\/index.php?rest_route=\/wp\/v2\/posts\/716\/revisions"}],"predecessor-version":[{"id":721,"href":"https:\/\/www.donluc.com\/index.php?rest_route=\/wp\/v2\/posts\/716\/revisions\/721"}],"wp:attachment":[{"href":"https:\/\/www.donluc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=716"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.donluc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=716"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.donluc.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=716"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}