{"product_id":"base-dual-16340-1400-mah","title":"Base Dual 16340 (1400 mAh)","description":"\u003cstyle\u003e\n\/* ===== Scoped Description Style ===== *\/\n.product-description.rte {\n  font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Helvetica Neue\", Arial, sans-serif;\n  color: #2c2c2c;\n  line-height: 1.65;\n  font-size: 16px;\n}\n\n\/* ===== Headings ===== *\/\n.product-description.rte h2 {\n  font-size: 1.8em;\n  color: #0D47A1;\n  border-left: 4px solid #1f6fe5;\n  padding-left: 12px;\n  margin-top: 32px;\n  margin-bottom: 16px;\n}\n\n\/* ===== H3 Titles Optimization ===== *\/\n.product-description.rte h3 {\n  font-size: 1.4em;\n  color: #0D47A1;\n  margin-top: 24px;\n  margin-bottom: 12px;\n  font-weight: 500;\n  padding-bottom: 6px;\n  border-bottom: 2px solid #e6e6e6;\n}\n\n\/* ===== Paragraphs ===== *\/\n.product-description.rte p {\n  margin-bottom: 20px;\n  line-height: 1.8;\n  color: #4a4f57;\n  font-size: 16px;\n}\n\n\/* ===== Paragraph Images (only in description) ===== *\/\n.product-description.rte img {\n  display: block;\n  max-width: 100%;\n  height: auto;\n  margin: 24px auto;\n  border-radius: 12px;\n  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);\n}\n\n\/* ===== Lists ===== *\/\n.product-description.rte ul {\n  padding-left: 20px;\n  margin-bottom: 16px;\n  list-style-type: disc;\n}\n.product-description.rte li {\n  margin-bottom: 6px;\n}\n\n\/* ===== Links ===== *\/\n.product-description.rte a {\n  color: #0288D1;\n  text-decoration: none;\n  transition: color 0.3s ease;\n}\n.product-description.rte a:hover {\n  color: #01579B;\n}\n\n\/* ===== M5Stack-style Spec Table ===== *\/\n.product-description.rte .table-container {\n  width: 100%;\n  margin: 24px 0;\n  overflow-x: auto;\n}\n.product-description.rte .table-container table {\n  width: 100%;\n  border-collapse: collapse;\n  font-family: inherit;\n  font-size: 14px;\n  color: #2c2f36;\n  background-color: #ffffff;\n  border-radius: 10px;\n  overflow: hidden;\n  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);\n}\n.product-description.rte .table-container thead th {\n  background: #1f6fe5;\n  color: #ffffff;\n  padding: 14px 16px;\n  text-align: center;\n  font-weight: 600;\n  border: none;\n  vertical-align: middle;\n}\n.product-description.rte .table-container td {\n  padding: 14px 16px;\n  border-bottom: 1px solid #e6ebf2;\n  vertical-align: middle;\n}\n.product-description.rte .table-container tbody td:first-child {\n  width: 36%;\n  text-align: center;\n  font-weight: 500;\n  color: #4a4f57;\n  background-color: rgba(31, 111, 229, 0.02);\n}\n.product-description.rte .table-container tbody tr:nth-child(even) {\n  background-color: #f7f9fc;\n}\n@media (hover: hover) {\n  .product-description.rte .table-container tbody tr:hover {\n    background-color: #eef3ff;\n  }\n}\n\n\/* ===== Learn \u0026 Documents Button ===== *\/\n.product-description.rte #learn-and-documents-btn {\n  display: inline-flex;\n  align-items: center;\n  padding: 6px 14px;\n  background-color: #1f6fe5;\n  color: #ffffff;\n  font-weight: 600;\n  border-radius: 6px;\n  margin-top: 8px;\n  text-decoration: none;\n  transition: background 0.3s ease;\n}\n.product-description.rte #learn-and-documents-btn:hover {\n  background-color: #1661c1;\n}\n\n\/* ===== Responsive Design for Smaller Screens (with table adjustments) ===== *\/\n@media screen and (max-width: 768px) {\n  .product-description.rte .table-container table,\n  .product-description.rte .table-container thead,\n  .product-description.rte .table-container tbody,\n  .product-description.rte .table-container th,\n  .product-description.rte .table-container td,\n  .product-description.rte .table-container tr {\n    display: block;\n    width: 100%;\n  }\n  .product-description.rte .table-container thead {\n    display: none;\n  }\n  .product-description.rte .table-container tbody tr {\n    padding: 12px 0;\n    border-bottom: 1px solid #e6ebf2;\n  }\n  .product-description.rte .table-container tbody td {\n    padding: 8px 16px;\n    border: none;\n    text-align: left;\n  }\n  .product-description.rte .table-container tbody td:first-child {\n    width: 100%;\n    background: none;\n    color: #1f6fe5;\n    font-weight: 600;\n    padding-top: 16px;\n  }\n  .product-description.rte .table-container tbody td:last-child {\n    padding-bottom: 16px;\n    color: #2c2f36;\n    line-height: 1.6;\n  }\n\n  \/* Ensure button appears correctly on mobile *\/\n  .product-description.rte #learn-and-documents-btn {\n    font-size: 14px;\n    padding: 8px 16px;\n  }\n}\n\u003c\/style\u003e\u003ch2 data-id=\"Description\" id=\"description\"\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eBase Dual 16340 is a compact battery base module for M5Stack controllers that supports two 16340 rechargeable cells in parallel to provide stable battery power to the main system. The module integrates power-path management, power-switch control, overcurrent and reverse-polarity protection, and battery status monitoring, helping to monitor voltage, current, and power in real time for power-management and energy-analysis tasks.\u003c\/p\u003e\n\u003cp\u003eInside the module is an INA226 current and voltage monitoring chip that communicates with the host through an I2C interface. It also provides two Grove expansion interfaces, making it easy to connect various sensors and peripheral modules for battery expansion of M5Stack devices or standalone embedded applications.\u003c\/p\u003e\n\u003ch2 data-id=\"Features\" id=\"features\"\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBattery base module for M5Stack controllers\u003c\/li\u003e\n\u003cli\u003eSupports two 16340 rechargeable batteries\u003c\/li\u003e\n\u003cli\u003ePower supply can be turned on\/off by switch\u003c\/li\u003e\n\u003cli\u003eBuilt-in overcurrent and reverse-polarity protection for improved reliability\u003c\/li\u003e\n\u003cli\u003eIntegrated INA226 current\/voltage monitor chip for real-time battery state monitoring\u003c\/li\u003e\n\u003cli\u003eTwo Grove expansion interfaces for flexible sensor and peripheral connections\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-id=\"Includes\" id=\"includes\"\u003eIncludes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Base Dual 16340\u003c\/li\u003e\n\u003cli\u003e2 x 16340 rechargeable batteries\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-id=\"Applications\" id=\"applications\"\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eM5Stack battery expansion\u003c\/li\u003e\n\u003cli\u003eStandalone battery supply for embedded systems\u003c\/li\u003e\n\u003cli\u003ePower and energy management\u003c\/li\u003e\n\u003cli\u003ePortable equipment power solutions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-id=\"Specifications\" id=\"specifications\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv class=\"table-container\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Monitor Chip\u003c\/td\u003e\n\u003ctd\u003eINA226\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Protection IC\u003c\/td\u003e\n\u003ctd\u003eDW01A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Type\u003c\/td\u003e\n\u003ctd\u003e16340 rechargeable lithium battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Capacity\u003c\/td\u003e\n\u003ctd\u003e2 x 700mAh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Electrical Spec\u003c\/td\u003e\n\u003ctd\u003eRated Capacity: 700mAh\u003cbr\u003eRated Voltage: DC 3.7V\u003cbr\u003eCharge Cutoff Voltage: DC 4.2±0.03V (Temperature 0℃~+45℃)\u003cbr\u003eStandard Charge Current: 0.2C (Temperature 0℃~+45℃)\u003cbr\u003eStandard Discharge Current: 0.2C (Temperature -20℃~+60℃)\u003cbr\u003eMax Discharge Current: 3.0C (Discharge cutoff voltage DC 2.75V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Control\u003c\/td\u003e\n\u003ctd\u003eSlide switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrove Interface Spec\u003c\/td\u003e\n\u003ctd\u003e2 x HY2.0-4P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandby Power\u003c\/td\u003e\n\u003ctd\u003e(Power switch on, no host connected)\u003cbr\u003eNo battery: DC 4.2V@1.10mA\u003cbr\u003eWith battery: DC 4.2V@33.41mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 ~ 40°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Size\u003c\/td\u003e\n\u003ctd\u003e54.0 x 54.0 x 21.0mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Weight\u003c\/td\u003e\n\u003ctd\u003e66.4g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Size\u003c\/td\u003e\n\u003ctd\u003e66.0 x 50.0 x 31.0mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGross Weight\u003c\/td\u003e\n\u003ctd\u003e83.5g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLearn and Documents\u003c\/h2\u003e\n\u003ca href=\"https:\/\/docs.m5stack.com\/en\/products\/sku\/A179\" target=\"_blank\" id=\"learn-and-documents-btn\"\u003e\n  → DOCUMENTS\n\u003c\/a\u003e\n\u003c\/div\u003e","brand":"m5stack-store","offers":[{"title":"Default Title","offer_id":49324475842817,"sku":"A179","price":9.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0056\/7689\/2250\/files\/1_f825b2d7-1832-449f-93fd-21b437c69487.webp?v=1782443691","url":"https:\/\/shop.m5stack.com\/products\/base-dual-16340-1400-mah","provider":"m5stack-store","version":"1.0","type":"link"}