{"id":56453,"date":"2018-05-29T22:05:10","date_gmt":"2018-05-29T22:05:10","guid":{"rendered":"https:\/\/www.microplanet.ma\/?post_type=product&#038;p=56453"},"modified":"2026-10-20T09:50:35","modified_gmt":"2026-10-20T09:50:35","slug":"3s-20a-lithium-battery-protection-board","status":"publish","type":"product","link":"https:\/\/www.microplanet.ma\/en\/produit\/3s-20a-lithium-battery-protection-board\/","title":{"rendered":"3S 20A Lithium Battery Protection Board (BMS)"},"content":{"rendered":"<h3>3S 20A Lithium Battery Protection Board (BMS)<\/h3>\n<p>Protection board for a three-cell lithium battery pack connected in series (3S). The source describes protection against short circuit, overcharge, excessive discharge and overcurrent.<\/p>\n<ul>\n<li>Pack configuration: 3 cells in series; source identifies 3.6\u20133.7 V cells such as 18650.<\/li>\n<li>Maximum discharge current: 20 A (source rating).<\/li>\n<li>Maximum operating current: 15 A (source rating).<\/li>\n<li>Charging voltage: 12.6 V.<\/li>\n<li>Charge cutoff: 4.25\u20134.35 V \u00b1 0.05 V per cell (as stated by source).<\/li>\n<li>Discharge cutoff: 2.5\u20133.0 V \u00b1 0.05 V per cell (as stated by source).<\/li>\n<li>Standby current: &lt;30 \u00b5A; internal resistance: &lt;100 m\u03a9.<\/li>\n<li>Operating temperature: \u221240 to 50 \u00b0C; stated lifetime: &gt;30,000 hours.<\/li>\n<li>Dimensions: 58 \u00d7 20 \u00d7 3.6 mm.<\/li>\n<\/ul>\n<p><img src=&quot;https:\/\/www.microplanet.ma\/wp-content\/uploads\/2018\/05\/3s_branchement3.png&quot; alt=&quot;3S BMS wiring diagram&quot; width=&quot;600&quot; height=&quot;297&quot;><\/p>\n<p><strong>Important:<\/strong> this board provides battery protection; it is not a standalone charger and does not replace a suitable 3S lithium CC\/CV charger set for 12.6 V. Follow the wiring diagram and verify cell chemistry, polarity, current ratings and cutoff specifications before use. The source lists different maximum operating and discharge currents; treat 20 A as a source claim, not a guaranteed continuous rating.<\/p>\n<p>Price: MAD 40<\/p>\n","protected":false},"excerpt":{"rendered":"<p>3S lithium battery protection board for a three-cell series pack. The source lists 12.6 V charging voltage, 20 A maximum discharge current and 15 A maximum operating current. This is a protection board, not a complete charger.<\/p>\n","protected":false},"featured_media":56454,"template":"","meta":[],"product_brand":[],"product_cat":[346,314,316,318],"product_tag":[],"class_list":["post-56453","product","type-product","status-publish","has-post-thumbnail","product_cat-batteries-accessoires-en","product_cat-developpement-en","product_cat-modules-capteurs-en","product_cat-alimentation-mesure-en","first","instock","sale","taxable","shipping-taxable","purchasable","product-type-simple"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>3S 20A Lithium Battery Protection Board (BMS) | MicroPlanet<\/title>\n<meta name=\"description\" content=\"3S lithium battery protection board for a three-cell series pack. The source lists 12.6 V charging voltage, 20 A maximum discharge current and 15 A maximum operating current. 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