{"product_id":"hqst-100a-mppt-solar-charge-controller-12-48v-negative-ground-bluetooth-app-lcd-display","title":"HQST 100A MPPT Solar Charge Controller – 12-48V Negative Ground, Bluetooth App, LCD Display","description":"\u003ch2\u003eHQST 100A MPPT Solar Charge Controller\u003c\/h2\u003e\n\u003cp\u003eDesigned for flexible off‑grid and mobile setups, the HQST 100A MPPT controller supports 12V to 48V systems and a wide range of battery chemistries, including LiFePO4, sealed, AGM, GEL, and flooded options. The negative grounding design adds installation versatility for vehicles, cabins, sheds, and marine use.\u003c\/p\u003e\n\u003cp\u003eNegative grounding provides broader compatibility with different installations, while the built‑in Bluetooth module pairs with the ChargePro 2.0 or PVChargePro apps for real‑time monitoring. An LCD display on the unit lets you view operating data and adjust parameters on the spot, with effective use within a roughly 10m (33ft) range in open space.\u003c\/p\u003e\n\n\u003ch3\u003eSmart monitoring and on‑device control\u003c\/h3\u003e\n\u003cp\u003eTrack voltages, currents, temperatures, and charging status in real time. The app stores up to 300 days of historical data, helping you analyze trends and plan maintenance without guesswork.\u003c\/p\u003e\n\n\u003ch3\u003eLow‑temperature protection for LiFePO4\u003c\/h3\u003e\n\u003cp\u003eLow‑temp cut‑off prevents charging below 32°F and discharging below 5°F for LiFePO4 batteries. The function can be toggled, and it also helps wake dormant LiFePO4 cells that have turned off after deep discharge.\u003c\/p\u003e\n\n\u003ch3\u003eHigh‑efficiency MPPT charging\u003c\/h3\u003e\n\u003cp\u003eMPPT tracking efficiency can reach up to 99%, with a peak conversion rate up to 98.7%. This can help maximize energy from solar panels across 12\/24\/36\/48V systems and is compatible with LiFePO4, sealed, AGM, GEL, and flooded batteries.\u003c\/p\u003e\n\n\u003ch3\u003eExpandability and scalability\u003c\/h3\u003e\n\u003cp\u003eUse the parallel charge extension feature to connect up to 9 controllers to charge the same battery bank, ideal for higher power needs. Ensure all controllers share the same battery voltage setting for safe operation.\u003c\/p\u003e\n\n\u003ch3\u003eReliability and safety features\u003c\/h3\u003e\n\u003cp\u003eTwo active cooling fans engage when power rises or temperatures climb, maintaining performance. Ten protections guard against overcharging, over‑voltage, over‑current, overheating, reverse polarity, and more for dependable operation.\u003c\/p\u003e\n\n\u003ch3\u003eReal‑world use cases\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRVs, boats, or off‑grid cabins needing compact, reliable power management with easy app monitoring.\u003c\/li\u003e\n  \u003cli\u003eGrowing solar setups that benefit from scalable parallel charging without reworking the entire system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey benefits at a glance\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eBluetooth connectivity and LCD display for convenient monitoring and adjustments.\u003c\/li\u003e\n  \u003cli\u003eBroad battery compatibility, including LiFePO4, with cold-weather options.\u003c\/li\u003e\n  \u003cli\u003eHigh MPPT efficiency to maximize energy capture from solar panels.\u003c\/li\u003e\n  \u003cli\u003eExpandable architecture with parallel controllers for bigger charging needs.\u003c\/li\u003e\n  \u003cli\u003eActive cooling and robust protections for safer, longer operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What battery types does the HQST 100A MPPT Controller support?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It supports LiFePO4, sealed, AGM, GEL, and flooded batteries with configurable charging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How many controllers can be connected in parallel?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Up to 9 controllers can be paralleled to charge a single battery bank with matching voltage.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"HQST","offers":[{"title":"Default Title","offer_id":43990033629318,"sku":"B0DD3LHNDS","price":263.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/1602\/5478\/files\/hqst-100a-mppt-controller-lcd-display.jpg?v=1778899350","url":"https:\/\/patiozora.com\/products\/hqst-100a-mppt-solar-charge-controller-12-48v-negative-ground-bluetooth-app-lcd-display","provider":"PatioZora","version":"1.0","type":"link"}