{"product_id":"upgraded-vc4sl-battery-charger-qc30-support","title":"Upgraded VC4SL battery charger , QC3.0 support","description":"\u003cp data-ename=\"??3?\"\u003e\u003cspan style=\"font-family: arial;\"\u003e\u003cstrong\u003e\u003cspan style=\"font-weight: bold;\"\u003e\u003cspan style=\"font-size: 16.0000pt;\"\u003eVC4SL USB-C 4-slot charger \/ analyzer\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-ename=\"??3?\"\u003e\u003cspan style=\"font-family: arial;\"\u003e\u003cspan style=\"font-size: 16px;\"\u003eA portable smart charger used in your car or at home.\u003c\/span\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"position: relative; padding-bottom: 56.25%; padding-top: 30px; height: 0; overflow: hidden;\" class=\"youtube-embed-wrapper\"\u003e\n\u003cbr\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/PfmqUz33xJs?rel=0\" style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%;\" height=\"360\" width=\"640\"\u003e\u003c\/iframe\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003eAccurate Display Battery Status\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003eUSB-C 4-bay LCD universal battery charger \u0026amp; analyzer\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e*USB Type-C port\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e*Compatible with 3.6\/3.7V Li-ion and 1.2V Ni-MH batteries\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e*Can charge protected 21700 batteries\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e*QC3.0 fast charge, max 3A for a single slot\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e*Control charging current by yourself (0.25A to 3A)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e*Battery real capacity test and storage function\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e*Revive most of over-discharged batteries\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e*Safe charging with multiple protections\u003c\/span\u003e\u003c\/p\u003e\n\u003carticle data-ename=\"????¨¨¨º?\"\u003e\n\u003cdiv\u003e\u003cspan style=\"font-family: arial;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0994\/9338\/0395\/files\/XTAR-VC4SL-1.webp?v=1778750377\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0994\/9338\/0395\/files\/XTAR-VC4SL-2.webp?v=1778750379\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0994\/9338\/0395\/files\/XTAR-VC4SL-3.webp?v=1778750381\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0994\/9338\/0395\/files\/XTAR-VC4SL-4.webp?v=1778750384\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0994\/9338\/0395\/files\/XTAR-VC4SL-5.gif?v=1778750387\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0994\/9338\/0395\/files\/XTAR-VC4SL-6.webp?v=1778750389\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0994\/9338\/0395\/files\/XTAR-VC4SL-7.gif?v=1778750391\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0994\/9338\/0395\/files\/XTAR-VC4SL-8-128c.webp?v=1778750399\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0994\/9338\/0395\/files\/XTAR-VC4SL-9.webp?v=1778750399\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0994\/9338\/0395\/files\/XTAR-VC4SL-10.webp?v=1778750400\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0994\/9338\/0395\/files\/XTAR-VC4SL-11.webp?v=1778750400\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0994\/9338\/0395\/files\/XTAR-VC4SL-12.webp?v=1778750399\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0994\/9338\/0395\/files\/XTAR-VC4SL-13.webp?v=1778750400\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0994\/9338\/0395\/files\/XTAR-VC4SL-14.webp?v=1778750399\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0994\/9338\/0395\/files\/XTAR-VC4SL-15.webp?v=1778750400\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0994\/9338\/0395\/files\/XTAR-VC4SL-16.webp?v=1778750400\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0994\/9338\/0395\/files\/XTAR-VC4SL-17.webp?v=1778750399\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-family: arial;\"\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan style=\"font-weight: bold;\"\u003e\u003cspan style=\"font-size: 16.0000pt;\"\u003eFAQ\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan style=\"font-weight: bold;\"\u003e\u003cspan style=\"font-size: 12.0000pt;\"\u003eWhy do Li-ion batteries need to be drained to half capacity before storage?\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size: 12.0000pt;\"\u003eIt is how lithium works. The chemical is more stable when half-charged if the cells are not in use for a long time. This will also prolong battery life. So you charge it half now and then another half when you want to use it.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan style=\"font-weight: bold;\"\u003e\u003cspan style=\"font-size: 12.0000pt;\"\u003eDo you know why is charging current determined by internal resistance?\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size: 12.0000pt;\"\u003eThe internal resistance basically tells how is the battery health so based on that the charger can select the appropriate charging current to make the best out of the battery.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan style=\"font-weight: bold;\"\u003e\u003cspan style=\"font-size: 12.0000pt;\"\u003eCan this charger do discharge？\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size: 12.0000pt;\"\u003eIt can but not a full discharge mode like the others. There are Storage Mode that discharges li-ion to storage voltage and Grading Mode that discharges and charges the battery to check the maximum capacity.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan style=\"font-weight: bold;\"\u003e\u003cspan style=\"font-size: 12.0000pt;\"\u003ewhat is the difference between vc4 plus and vc4sl?\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size: 12.0000pt;\"\u003eJust the same\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan style=\"font-weight: bold;\"\u003e\u003cspan style=\"font-size: 12.0000pt;\"\u003eDo you need to use the power brick that comes with it or can I just use a standard 5v 2.1A wall socket?\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size: 12.0000pt;\"\u003eThe standard charger will work you just won't be able to charge as fast\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan style=\"font-weight: bold;\"\u003e\u003cspan style=\"font-size: 12.0000pt;\"\u003eDoes storage mode also discharge full cells to the storage voltage?\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size: 12.0000pt;\"\u003eYes\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan style=\"font-weight: bold;\"\u003e\u003cspan style=\"font-size: 12.0000pt;\"\u003eI\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003cspan style=\"font-weight: bold;\"\u003e\u003cspan style=\"font-size: 12.0000pt;\"\u003es it possible to change the charge-discharge power in Grade Mode? If so, how? If not, what are the charge and discharge values in Grade Mode?\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size: 12.0000pt;\"\u003eUnder the grading mode, you can adjust the charging current (just like the charging mode), but you cannot adjust the discharging current (it is set to around 300mA).\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan style=\"font-weight: bold;\"\u003e\u003cspan style=\"font-size: 12.0000pt;\"\u003eC\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003cspan style=\"font-weight: bold;\"\u003e\u003cspan style=\"font-size: 12.0000pt;\"\u003ean I charge 26800 batteries with this device? \u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size: 12.0000pt;\"\u003eNo. But we\u003c\/span\u003e\u003cspan style=\"font-size: 12.0000pt;\"\u003e’\u003c\/span\u003e\u003cspan style=\"font-size: 12.0000pt;\"\u003eve released a new \u003c\/span\u003e\u003ca href=\"https:\/\/xtardirect-2.myshopify.com\/products\/xtar-sc1-plus-powerful-3a-charger-smallest-power-bank\"\u003e\u003cu\u003e\u003cspan style=\"text-decoration: underline; text-underline: single;\"\u003e\u003cspan style=\"font-size: 12.0000pt;\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e26800 battery charger\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/u\u003e\u003c\/a\u003e\u003cspan style=\"font-size: 12.0000pt;\"\u003e.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan style=\"font-weight: bold;\"\u003e\u003cspan style=\"font-size: 12.0000pt;\"\u003eC\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003cspan style=\"font-weight: bold;\"\u003e\u003cspan style=\"font-size: 12.0000pt;\"\u003ean this device restore old batteries?\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size: 12.0000pt;\"\u003eYes. This charger can revive the unprotected Lithium-ion batteries with 1.3-1.4V, all the protected Lithium-ion batteries, and the NiMH batteries above 0.6V.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/article\u003e","brand":"ShenZhen XTAR Electronics Co., Ltd","offers":[{"title":"China \/ VC4SL KT (no adapter)","offer_id":53411348611371,"sku":"AC361011","price":29.9,"currency_code":"USD","in_stock":true},{"title":"China \/ VC4SL+QC 3.0 US adapter","offer_id":53411348644139,"sku":"AC361008","price":33.9,"currency_code":"USD","in_stock":true},{"title":"China \/ VC4SL+QC 3.0 UK adapter","offer_id":53411348676907,"sku":"AC361010","price":33.9,"currency_code":"USD","in_stock":true},{"title":"China \/ VC4SL+QC 3.0 EU adapter","offer_id":53411348709675,"sku":"AC361009","price":33.9,"currency_code":"USD","in_stock":true},{"title":"USA \/ VC4SL KT (no adapter)","offer_id":53411348742443,"sku":"New VC4SL KT","price":29.99,"currency_code":"USD","in_stock":true},{"title":"USA \/ VC4SL+QC 3.0 US adapter","offer_id":53411348775211,"sku":null,"price":33.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/9338\/0395\/files\/290b9735c8.jpg?v=1777286817","url":"https:\/\/xtardirect.com\/products\/upgraded-vc4sl-battery-charger-qc30-support","provider":"XTAR Official Store","version":"1.0","type":"link"}