{"product_id":"itechworld-itechbm500-battery-monitor-with-shunt-500a","title":"iTechWorld iTECHBM500 Battery Monitor with Shunt 500A","description":"\u003cul class=\"list-items\"\u003e\n\u003cli\u003e\n\u003cspan\u003eShunt Rating: \u003c\/span\u003e\u003cspan\u003e500A\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eBattery Capacity Range: \u003c\/span\u003e\u003cspan\u003e10–999Ah\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eSupply Voltage: \u003c\/span\u003e\u003cspan\u003e10–100V\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eAccuracy: \u003c\/span\u003e\u003cspan\u003e±1% voltage and current\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eCompatible With: \u003c\/span\u003e\u003cspan\u003eLithium, lead-acid, NiMH\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0559\/4084\/1607\/files\/Screenshot_2026-11-06_115029.png?v=1793926273\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003e\u003cspan\u003eThe iTECHBM500 Battery Monitor with 500A Shunt\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eGuessing at battery voltage tells you almost nothing about how much power you've actually got left. The BM500 puts a 500A shunt in the negative line and counts every amp-hour going in and out, so the display shows real state of charge rather than a rough voltage reading.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cspan\u003eReal-Time Amp-Hour Counting\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe 500A shunt tracks charging and discharging current and calculates the amp-hours flowing in and out of the battery. A separate field-installed sense wire reads voltage directly at the battery, so what you see on screen is what the battery is actually doing — not an estimate taken from somewhere down the circuit.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cspan\u003eAccurate to 1%\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eVoltage and current are both measured to within ±1%. That accuracy is what makes the state-of-charge figure worth trusting when you're deciding whether to run the fridge another night or start the generator.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cspan\u003eWorks Across the Range\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eCompatible with lithium, lead-acid and nickel-metal hydride batteries, with a supply voltage range of 10–100V and a capacity range of 10–999Ah. That covers a single 100Ah 12V house battery through to a large 24V or 48V off-grid bank.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cspan\u003eDigital LCD Display\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eEverything on one screen, with adjustable brightness. The monitor itself draws under 2mA with the screen off, under 20mA at 10% brightness and under 60mA at full brightness, so it isn't meaningfully adding to your overnight draw.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cspan\u003eMounting and Installation\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe display mounts through a 106 x 81 x 18mm bracket with 95 x 70mm fixing points, and connects to the shunt via the supplied 3m shielded cable so you can put the screen where you'll actually see it. Bracket, screws, shunt holder and sense wire are all in the box. The monitor is rated IP20, so mount it inside the van, canopy or cabin where it's protected from moisture.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cspan\u003eWarranty\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eCovered by a 12-month statutory warranty from date of purchase, in addition to your rights under the Australian Consumer Law. Support is handled here in Australia — speak to a Power Expert on 1300 483 249, Monday to Friday 8:30am to 5pm AWST.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cspan\u003eWhat's in the Box\u003c\/span\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e1 x iTECHBM500 Battery Monitor\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e1 x 500A shunt\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e1 x Shunt holder\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e1 x Shielded wire (3m)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e1 x B+ sense wire, 22AWG (1m)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e1 x Plastic bracket\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e4 x Screws\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e1 x Instructions\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum measured current\u003c\/strong\u003e500A\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSupply voltage\u003c\/strong\u003e10–100V\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBattery capacity range\u003c\/strong\u003e10–999Ah\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVoltage accuracy\u003c\/strong\u003e±1%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCurrent accuracy\u003c\/strong\u003e±1%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBattery compatibility\u003c\/strong\u003eLithium, lead-acid, nickel-metal hydride\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eScreen off\u003c\/strong\u003e\u0026lt;2mA\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eScreen brightness at 10%\u003c\/strong\u003e\u0026lt;20mA\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eScreen brightness at 100%\u003c\/strong\u003e\u0026lt;60mA\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExterior bracket dimensions (L x W x H)\u003c\/strong\u003e106 x 81 x 18mm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMounting bracket points (L x W)\u003c\/strong\u003e95 x 70mm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMonitor backing dimensions (L x W x H)\u003c\/strong\u003e80 x 59 x 16mm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShielded cable length\u003c\/strong\u003e3m\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eB+ sense wire\u003c\/strong\u003e22AWG, 1m\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIP rating\u003c\/strong\u003eIP20\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOperating temperature\u003c\/strong\u003e-20°C to 80°C\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e1 year\u003c\/p\u003e","brand":"iTechWorld","offers":[{"title":"Default Title","offer_id":46441284894855,"sku":"BM500","price":99.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0559\/4084\/1607\/files\/BM500BatteryMonitorwithShunt1.webp?v=1793926216","url":"https:\/\/moorabbinbatteries.com.au\/products\/itechworld-itechbm500-battery-monitor-with-shunt-500a","provider":"Moorabbin Batteries","version":"1.0","type":"link"}