{"product_id":"grundig-wifi-battery-monitor-shunt-600a","title":"GRUNDIG WiFi Battery Monitor with Shunt, 600A, 2.4\" Color Display, App Remote for 12V-100V RV, Solar, Marine, LiFePO4 \u0026 Lead-Acid","description":"\u003c!-- GRUNDIG Shunt Battery Monitor — Shopify 商品描述 HTML（移动端优先 · 合并精简版） --\u003e\u003c!-- 使用方法：Shopify 商品描述编辑器右上角点击 \"\u003c\u003e\" (Show HTML)，清空后整体粘贴本文件全部内容 --\u003e\n\u003ch2\u003eI. About GRUNDIG Shunt Battery Monitor\u003c\/h2\u003e\n\u003cp\u003eA voltmeter only guesses. The GRUNDIG Shunt Battery Monitor measures the actual energy flowing in and out of your battery bank through a precision all-copper shunt, so your state of charge stays true — even after a lithium upgrade or a long boondocking weekend.\u003c\/p\u003e\n\u003cp\u003eCheck voltage, current, power, capacity (Ah \u0026amp; %) and estimated time remaining on the 2.4\" color screen, or on your phone from anywhere via Bluetooth, WiFi or cloud remote. Compatible with any 12V–100V battery — LiFePO4, NMC lithium, lead-acid (AGM\/Gel\/Flooded) — for RV house batteries, off-grid solar, marine and golf cart systems. No more wondering if you'll make it through the night, and no more dash gauges that lie after a battery swap.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eII. Features \u0026amp; Applications\u003c\/h2\u003e\n\u003ch3\u003eMonitor from Anywhere\u003c\/h3\u003e\n\u003cp\u003eBluetooth for nearby checks (works offline), WiFi for your local network, and cloud remote for worldwide monitoring. Inside the RV or a thousand miles away — your battery data is always with you.\u003c\/p\u003e\n\u003ch3\u003ePrecision Measurement, Both Directions\u003c\/h3\u003e\n\u003cp\u003eShunt-based coulomb counting. Voltage (±0.5% + 0.02V), current, power, capacity (0.001Ah resolution), and estimated time remaining — refreshed 5 times per second. Automatically shows charging (A+) or discharging (A−); when both happen at once, it displays the net current.\u003c\/p\u003e\n\u003ch3\u003eSmart Adjustable Alarms\u003c\/h3\u003e\n\u003cp\u003eSet your own low-voltage and low-capacity thresholds in the app or on the display. When triggered, the built-in buzzer sounds and a pop-up appears — so you never over-discharge your bank.\u003c\/p\u003e\n\u003ch3\u003ePower-Off Memory\u003c\/h3\u003e\n\u003cp\u003eAll settings and accumulated data are preserved through power loss. When power returns, the meter resumes with your previous configuration — set it once and forget it.\u003c\/p\u003e\n\u003ch3\u003eAll-Copper Shunt, Ultra-Low Drain\u003c\/h3\u003e\n\u003cp\u003eHigh-purity copper shunt with protective housing delivers low resistance, minimal heat and accurate readings. The display draws just 0.9W — it won't meaningfully drain your battery.\u003c\/p\u003e\n\u003ch3\u003ePowerful App (Junce Home)\u003c\/h3\u003e\n\u003cp\u003eAnimated charging interface, real-time and historical data, alarm thresholds, screen settings, and multi-device management — one dashboard for all your GRUNDIG monitors. Free for iOS and Android.\u003c\/p\u003e\n\u003ch3\u003eWhere It Works\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRV house battery banks (12V \/ 24V \/ 48V) — motorhomes, travel trailers, camper vans\u003c\/li\u003e\n\u003cli\u003eOff-grid \u0026amp; hybrid solar energy storage\u003c\/li\u003e\n\u003cli\u003eMarine \u0026amp; boat electrical systems\u003c\/li\u003e\n\u003cli\u003eGolf carts \u0026amp; utility vehicles\u003c\/li\u003e\n\u003cli\u003ePortable power stations\u003c\/li\u003e\n\u003cli\u003eElectric tricycles, motorcycles \u0026amp; conversion vehicles\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eIII. Choose Your Model\u003c\/h2\u003e\n\u003cp\u003ePick a rating above your system's maximum continuous current for a safety margin.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e0–50A — up to 5 kW\u003c\/strong\u003e\u003cbr\u003eCurrent resolution 0.001A · accuracy ±(0.2% + 0.002A) · screen wakes at ≥15mA discharge\u003cbr\u003eFor portable power stations, e-bikes, golf carts, small campers\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e0–100A — up to 10 kW\u003c\/strong\u003e\u003cbr\u003eCurrent resolution 0.001A · accuracy ±(0.2% + 0.002A) · screen wakes at ≥15mA discharge\u003cbr\u003eFor mid-size RV house banks, boats, small solar systems\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e0–400A — up to 40 kW\u003c\/strong\u003e\u003cbr\u003eCurrent resolution 0.01A · accuracy ±(1% + 0.1A) · screen wakes at ≥30mA discharge\u003cbr\u003eFor large RVs, off-grid solar storage, commercial vehicles\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e0–600A — up to 60 kW\u003c\/strong\u003e\u003cbr\u003eCurrent resolution 0.01A · accuracy ±(1% + 0.1A) · screen wakes at ≥30mA discharge\u003cbr\u003eFor heavy-duty off-grid systems, large battery banks, high-power EVs\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eIV. Specifications\u003c\/h2\u003e\n\u003ch3\u003eShared by All Models\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSampling method:\u003c\/strong\u003e shunt (all-copper, with protective housing)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e DC 10–100V · resolution 0.01V · accuracy ±(0.5% + 0.02V)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 0–100% display · 0–9999.9Ah range · resolution 0.001Ah\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower resolution:\u003c\/strong\u003e 0.0001W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSampling rate:\u003c\/strong\u003e 5 readings per second\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent direction:\u003c\/strong\u003e bidirectional, auto-detect (charge A+ \/ discharge A−)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplay:\u003c\/strong\u003e 2.4\" HD color LCD, dark\/light modes · power draw 0.9W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScreen auto-off:\u003c\/strong\u003e 10s \/ 20s \/ 30s \/ 40s \/ 50s \/ 60s \/ AUTO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnectivity:\u003c\/strong\u003e Bluetooth + WiFi LAN (2.4GHz) + cloud remote\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRange:\u003c\/strong\u003e Bluetooth up to 33 ft \/ 10 m · WiFi up to 33 ft \/ 10 m from router · cloud remote worldwide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlarms:\u003c\/strong\u003e low voltage + low capacity, buzzer + pop-up, adjustable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eData retention:\u003c\/strong\u003e power-off memory with auto-restore\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApp:\u003c\/strong\u003e Junce Home, free for iOS \u0026amp; Android\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible batteries:\u003c\/strong\u003e LiFePO4, NMC lithium, lead-acid (AGM\/Gel\/Flooded), any 10–100V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating temperature:\u003c\/strong\u003e −20°C to 60°C \/ −4°F to 140°F\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDisplay Unit × 1\u003c\/li\u003e\n\u003cli\u003eAll-Copper Shunt with Protective Housing × 1 (rating matches your selected model)\u003c\/li\u003e\n\u003cli\u003eCommunication Cable, 16.4 ft \/ 5 m × 1\u003c\/li\u003e\n\u003cli\u003eRed Positive Cable, 3.3 ft \/ 1 m × 1\u003c\/li\u003e\n\u003cli\u003eQuick Start Guide × 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eV. Installation Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eInstallation should be performed by a qualified person familiar with battery electrical systems.\u003c\/li\u003e\n\u003cli\u003eThe shunt installs on the battery's negative line; all loads and chargers must connect through it.\u003c\/li\u003e\n\u003cli\u003eAlways disconnect power before installation or maintenance.\u003c\/li\u003e\n\u003cli\u003eFull wiring diagrams are included in the Quick Start Guide.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eVI. FAQ\u003c\/h2\u003e\n\u003ch3\u003eQ1: What's the difference between a shunt battery monitor and a voltmeter?\u003c\/h3\u003e\n\u003cp\u003eA voltmeter estimates charge from voltage, which is unreliable — especially with LiFePO4's flat voltage curve. A shunt-based monitor measures actual current in and out (coulomb counting), so your state of charge stays accurate.\u003c\/p\u003e\n\u003ch3\u003eQ2: How does WiFi remote monitoring work?\u003c\/h3\u003e\n\u003cp\u003eThe monitor connects to your 2.4GHz WiFi and the Junce Home cloud. Once linked, you can check your battery from anywhere in the world through the app. Bluetooth works offline for nearby checks, and the on-device screen always shows live data with no connection at all.\u003c\/p\u003e\n\u003ch3\u003eQ3: Which model should I choose?\u003c\/h3\u003e\n\u003cp\u003ePick a rating above your system's peak continuous current: 0–50A for power stations and golf carts, 0–100A for mid-size RV and boat banks, 0–400A for large RV and solar systems, 0–600A for heavy-duty off-grid and EV builds.\u003c\/p\u003e\n\u003ch3\u003eQ4: Will it work with my battery?\u003c\/h3\u003e\n\u003cp\u003eYes — any battery chemistry between 10–100V DC, including LiFePO4, NMC lithium and lead-acid (AGM, Gel, Flooded). Set your battery type and capacity in the app.\u003c\/p\u003e\n\u003ch3\u003eQ5: How accurate is it?\u003c\/h3\u003e\n\u003cp\u003eVoltage accuracy is ±(0.5% + 0.02V) with 0.001Ah capacity resolution, sampled 5 times per second through a precision all-copper shunt.\u003c\/p\u003e\n\u003ch3\u003eQ6: Does it drain my battery?\u003c\/h3\u003e\n\u003cp\u003eVery little. The display draws only 0.9W, and the screen auto-off timer plus wake-on-current feature keep standby consumption negligible.\u003c\/p\u003e\n\u003ch3\u003eQ7: What happens when charging and discharging at the same time?\u003c\/h3\u003e\n\u003cp\u003eThe meter displays the net current — the difference between charge current and discharge current — and shows A+ or A− accordingly.\u003c\/p\u003e\n\u003ch3\u003eQ8: What happens if the monitor loses power?\u003c\/h3\u003e\n\u003cp\u003eNothing is lost. A built-in storage chip saves all settings and accumulated data, and the meter resumes automatically when power returns.\u003c\/p\u003e\n\u003ch3\u003eQ9: Is it hard to install?\u003c\/h3\u003e\n\u003cp\u003eThe shunt goes on the battery's negative line, and the display connects with the included 16.4 ft cable. We recommend a qualified installer; always disconnect power first and follow the Quick Start Guide.\u003c\/p\u003e\n\u003ch3\u003eQ10: What app does it use, and can I monitor multiple devices?\u003c\/h3\u003e\n\u003cp\u003eThe free Junce Home app (iOS \u0026amp; Android). One dashboard manages multiple GRUNDIG monitors — ideal if you run several vehicles or battery banks.\u003c\/p\u003e\n\u003c!-- FAQPage 结构化数据 --\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Grundig-auto","offers":[{"title":"0-50A","offer_id":46138549665871,"sku":null,"price":99.0,"currency_code":"USD","in_stock":true},{"title":"0-100A","offer_id":46138549698639,"sku":null,"price":115.0,"currency_code":"USD","in_stock":true},{"title":"0-400A","offer_id":46138549731407,"sku":null,"price":129.0,"currency_code":"USD","in_stock":true},{"title":"0-600A","offer_id":46138549764175,"sku":null,"price":139.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9143\/8927\/files\/05_437d335e-53c6-4beb-bcb4-c4e5efbba414.jpg?v=1784691521","url":"https:\/\/grundig-auto.com\/nl-global\/products\/grundig-wifi-battery-monitor-shunt-600a","provider":"Grundig-auto","version":"1.0","type":"link"}