{"product_id":"topdon-btmobilelite-12v-wireless-battery-tester","title":"Topdon USA BTMobile Lite 12V Wireless Battery \u0026 System Tester","description":"\u003cdiv class=\"divider\"\u003e\u003cimg src=\"https:\/\/cdn11.bigcommerce.com\/s-ew8kwapfc4\/images\/stencil\/original\/image-manager\/golden-bar.png?t=1681903157\" alt=\"\" width=\"1198\" height=\"8\"\u003e\u003c\/div\u003e \u003cdiv class=\"kd-main-product-feature-container\"\u003e \u003cdiv class=\"panel\"\u003e \u003cdiv class=\"kd-product-feature-continer kd-flex-row-2\"\u003e \u003cdiv class=\"kd-prouduct-feature-item kd-prouduct-feature-content\"\u003e \u003ch2\u003eTopdon BTMobile Lite 12V Wireless Battery \u0026amp; System Tester\u003c\/h2\u003e \u003cp\u003eThe interesting decision in this tester is what it leaves out. There is \u003cstrong\u003eno screen\u003c\/strong\u003e. Every result goes to your phone over Bluetooth, and the whole design follows from that one omission: no display means no display-sized housing, which is why the unit is \u003cstrong\u003e27mm\u003c\/strong\u003e — \u003cstrong\u003e1.06 inches\u003c\/strong\u003e — thick and fits in a pocket rather than a tool bag.\u003c\/p\u003e \u003cp\u003eThat is a real trade rather than a cost saving, and it is worth understanding before you buy. What you lose is the ability to test a battery without a phone in your hand. What you gain is a tester that is always with you, and results that arrive somewhere they can be saved, dated and sent — rather than on a screen you have to write down from.\u003c\/p\u003e \u003ch3\u003eWhat it tests\u003c\/h3\u003e \u003cp\u003eThree modes, built for \u003cstrong\u003e12V\u003c\/strong\u003e automotive systems, each answering a different question.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eBattery test\u003c\/strong\u003e — state of health and state of charge. This is the one that separates \"flat\" from \"finished\".\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCranking test\u003c\/strong\u003e — voltage stability while the starter motor is drawing current. A battery can read perfectly well at rest and collapse under load, and only a cranking test exposes it.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCharging test\u003c\/strong\u003e — alternator and regulator performance under load. This is the test that prevents a healthy battery being replaced for a charging fault, which is the most common and most expensive misdiagnosis in this area.\u003c\/p\u003e \u003cp\u003eRun in sequence, those three tell you whether a no-start came from the battery, the starter or the charging system — which is the actual question, and one a voltmeter cannot answer.\u003c\/p\u003e \u003ch3\u003eBattery types, and why the list matters\u003c\/h3\u003e \u003cp\u003eThe tester covers regular flooded, AGM flat plate, AGM spiral, EFB and GEL batteries. That spread is what makes it useful beyond cars: the same tool suits SUVs, light trucks, motorcycles, powersports equipment and marine applications, where the battery chemistry varies far more than it does in a passenger car park.\u003c\/p\u003e \u003cp\u003eIt matters practically because different chemistries behave differently under test. A tester that assumes flooded lead-acid will misjudge an AGM start-stop battery, and start-stop AGM is now most of the fleet.\u003c\/p\u003e \u003ch3\u003eWorking with it\u003c\/h3\u003e \u003cp\u003eThe unit pairs to a phone over Bluetooth and reports to the free Topdon app, which supports English, Spanish, German, Italian, Portuguese, Russian and Japanese.\u003c\/p\u003e \u003cp\u003eTwo LEDs handle the part of the job that happens before the app opens. A green LED confirms the clamps are correctly connected to the battery; a blue LED shows Bluetooth is active and ready to pair. That is a sensible allocation of the two things you need to know while your head is under the bonnet and your phone is in your pocket.\u003c\/p\u003e \u003cp\u003eOn the safety side there is reverse polarity protection, short-circuit prevention and over-voltage safeguarding — protecting the vehicle's electronics as much as the tool.\u003c\/p\u003e \u003ch3\u003eWhere it can be used\u003c\/h3\u003e \u003cp\u003eOperating range is -20°C to 65°C (-4°F to 140°F) and storage is -20°C to 70°C (-4°F to 158°F). For a tool this small that range is the point: it lives in a glovebox, a jacket or a door pocket, which are the places that get properly hot and properly cold, and it is rated for them.\u003c\/p\u003e \u003ch3\u003eSize and weight, with one figure to confirm\u003c\/h3\u003e \u003cp\u003eThe unit measures 81 by 68 by \u003cstrong\u003e27mm\u003c\/strong\u003e — 3.19 by 2.68 by \u003cstrong\u003e1.06 inches\u003c\/strong\u003e. It weighs 250 g.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePublished weight figures differ in their imperial conversion\u003c\/strong\u003e — the written description gives 8.8 oz and the specification table gives 8.81 oz. Both are shown here; the difference changes nothing about the product, and the metric figure of 250 g is common to both, which is the one quoted above. \u003cstrong\u003eIf the exact imperial figure matters to you, ask and we will confirm it.\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eOne other inconsistency worth flagging in the same spirit: this product is titled BTMobile Lite, while a heading elsewhere on the page reads simply \"BTMobile\". They refer to the same tester; the model recorded against this listing is BTMobile Lite.\u003c\/p\u003e \u003ch3\u003ePerfect For\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eMobile technicians and roadside assistance\u003c\/strong\u003e, where a tester that lives in a pocket is a tester that is present.\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eIndependent workshops\u003c\/strong\u003e wanting a quick battery, cranking and charging check without occupying the bench tester.\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eUsed car dealers and trade buyers\u003c\/strong\u003e checking stock that has been standing on a forecourt.\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eMotorcycle, powersports and marine owners\u003c\/strong\u003e, where battery types vary and access is awkward.\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eHome mechanics\u003c\/strong\u003e running several vehicles who would rather measure a battery than replace it on suspicion.\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eWhat's in the Box\u003c\/h3\u003e \u003cp\u003eThe tester and its clamps. The listing data does not itemise a case, a lead or printed documentation, so this page does not claim them. The app is a free download rather than something in the carton. Ask and we will confirm the current packing list before you order.\u003c\/p\u003e \u003ch3\u003eSpecifications\u003c\/h3\u003e \u003ctable\u003e \u003ctbody\u003e \u003ctr\u003e \u003cth scope=\"row\"\u003eModel\u003c\/th\u003e \u003ctd\u003eBTMobile Lite\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth scope=\"row\"\u003eSystem\u003c\/th\u003e \u003ctd\u003e12V automotive\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth scope=\"row\"\u003eTests\u003c\/th\u003e \u003ctd\u003eBattery, cranking, charging\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth scope=\"row\"\u003eBattery types\u003c\/th\u003e \u003ctd\u003eRegular flooded, AGM flat plate, AGM spiral, EFB, GEL\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth scope=\"row\"\u003eConnection\u003c\/th\u003e \u003ctd\u003eBluetooth to the Topdon app; no on-board screen\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth scope=\"row\"\u003eIndicators\u003c\/th\u003e \u003ctd\u003eGreen LED for connection, blue LED for Bluetooth\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth scope=\"row\"\u003eDimensions\u003c\/th\u003e \u003ctd\u003e81 by 68 by 27mm (3.19 by 2.68 by 1.06 inches)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth scope=\"row\"\u003eWeight\u003c\/th\u003e \u003ctd\u003e250 g\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth scope=\"row\"\u003eWorking temperature\u003c\/th\u003e \u003ctd\u003e-20°C to 65°C (-4°F to 140°F)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth scope=\"row\"\u003eStorage temperature\u003c\/th\u003e \u003ctd\u003e-20°C to 70°C (-4°F to 158°F)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth scope=\"row\"\u003eProtection\u003c\/th\u003e \u003ctd\u003eReverse polarity, short circuit, over-voltage\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ch3\u003eCertification and compliance\u003c\/h3\u003e \u003cp\u003eNo third-party safety or conformity listing is named in the data we hold for this tester, and this page will not imply one it cannot evidence. It is worth saying rather than leaving blank, because some fleet and municipal purchasing policies require named documentation for test equipment before a tool can be issued to a technician. If yours does, tell us which document it asks for and we will obtain the current manufacturer paperwork before you order.\u003c\/p\u003e \u003ch3\u003eShipping and delivery\u003c\/h3\u003e \u003cp\u003eA small parcel item, shipping to addresses in the lower 48 states or available for warehouse collection. Cost is calculated for your address at checkout rather than printed here, because carrier rates move. Check the clamps and the housing on arrival and note any damage on the delivery paperwork at the time — damage recorded at the door is what supports a claim afterwards.\u003c\/p\u003e \u003ch3\u003eWarranty\u003c\/h3\u003e \u003cp\u003eTerms and the claim process are published on our \u003ca href=\"https:\/\/mechanicsuperstore.com\/pages\/warranty-claims\"\u003ewarranty claims page\u003c\/a\u003e. If the tester fails, contact us before opening the housing or re-terminating a clamp lead. A tool that has been taken apart cannot be assessed, and on a sealed wireless instrument the repair and the original fault become impossible to tell apart once the case is off.\u003c\/p\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"divider\"\u003e \u003ch3 data-start=\"3876\" data-end=\"3909\"\u003eWhy Choose the BTMobile Lite\u003c\/h3\u003e \u003cp data-start=\"3911\" data-end=\"4313\"\u003eThe Topdon BTMobile Lite combines professional-grade testing accuracy with lightweight portability. It provides the key diagnostics you need without expensive, oversized equipment. With its wireless design, multi-battery compatibility, and built-in safety features, this tester is an ideal solution for everyday drivers, repair shops, and technicians who need fast and reliable battery system checks.\u003c\/p\u003e \u003ch3 data-start=\"3472\" data-end=\"3489\"\u003eHow It Works\u003c\/h3\u003e \u003col data-start=\"3491\" data-end=\"3735\"\u003e \u003cli data-start=\"3491\" data-end=\"3540\"\u003e \u003cp data-start=\"3494\" data-end=\"3540\"\u003eConnect the clamps to the battery terminals.\u003c\/p\u003e \u003c\/li\u003e \u003cli data-start=\"3541\" data-end=\"3605\"\u003e \u003cp data-start=\"3544\" data-end=\"3605\"\u003eLaunch the Topdon app on your phone and pair via Bluetooth.\u003c\/p\u003e \u003c\/li\u003e \u003cli data-start=\"3606\" data-end=\"3663\"\u003e \u003cp data-start=\"3609\" data-end=\"3663\"\u003eSelect the test mode—battery, cranking, or charging.\u003c\/p\u003e \u003c\/li\u003e \u003cli data-start=\"3664\" data-end=\"3735\"\u003e \u003cp data-start=\"3667\" data-end=\"3735\"\u003eReview real-time results, displayed clearly on your mobile device.\u003c\/p\u003e \u003c\/li\u003e \u003c\/ol\u003e \u003cp data-start=\"3737\" data-end=\"3869\"\u003eThe process takes less than a minute and delivers detailed insights into the health of both the battery and the electrical system.\u003c\/p\u003e \u003cp data-start=\"3737\" data-end=\"3869\"\u003e\u003ca href=\"https:\/\/mechanicsuperstore.com\/pages\/contact\" target=\"_blank\" title=\"\" rel=\"noopener\"\u003eContact us\u003c\/a\u003e for more information.\u003c\/p\u003e \u003cimg src=\"https:\/\/cdn11.bigcommerce.com\/s-ew8kwapfc4\/images\/stencil\/original\/image-manager\/golden-bar.png?t=1681903157\" alt=\"\" width=\"1198\" height=\"8\"\u003e \u003c\/div\u003e \u003cdiv class=\"kd-main-product-spec-container\"\u003e \u003ch2 class=\"h3 accordion\"\u003eProduct Specifications\u003c\/h2\u003e \u003cdiv class=\"panel\"\u003e \u003cdiv class=\"kd-product-spec-continer kd-flex-row\"\u003e \u003cdiv class=\"kd-prouduct-spec-item\"\u003e \u003ctable border=\"0\" cellspacing=\"0\"\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd align=\"left\" width=\"50%\"\u003eModel\u003c\/td\u003e \u003ctd align=\"right\" width=\"50%\"\u003eBTMobile Lite\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd align=\"left\" width=\"50%\"\u003eWorking Temperature\u003c\/td\u003e \u003ctd align=\"right\" width=\"50%\"\u003e-20℃ to 65℃(-4°F to 140°F)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd align=\"left\" width=\"50%\"\u003eStorage Temperature\u003c\/td\u003e \u003ctd align=\"right\" width=\"50%\"\u003e-20℃ to 70℃ (-4°F to 158°F)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd align=\"left\" width=\"50%\"\u003eDimensions\u003c\/td\u003e \u003ctd align=\"right\" width=\"50%\"\u003e81*68*27mm (3.19*2.68*1.06 inches)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd align=\"left\" width=\"50%\"\u003eWeight\u003c\/td\u003e \u003ctd align=\"right\" width=\"50%\"\u003e250g (8.81 oz)\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"divider\"\u003e\u003cimg src=\"https:\/\/cdn11.bigcommerce.com\/s-ew8kwapfc4\/images\/stencil\/original\/image-manager\/golden-bar.png?t=1681903157\" alt=\"\" width=\"1198\" height=\"8\"\u003e\u003c\/div\u003e \u003cdiv class=\"kd-main-product-downloads-container\"\u003e \u003cdiv class=\"panel\"\u003e \u003cdiv class=\"kd-product-downloads-continer kd-flex-row\"\u003e \u003cdiv class=\"kd-prouduct-downloads-item\"\u003e \u003cdiv class=\"kd-img-container kd-flex-row\"\u003e \u003cdiv class=\"kd-img-item\"\u003e \u003ch5\u003e\u003c\/h5\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"kd-prouduct-downloads-item\"\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"divider\"\u003e\u003cimg src=\"https:\/\/cdn11.bigcommerce.com\/s-ew8kwapfc4\/images\/stencil\/original\/image-manager\/golden-bar.png?t=1681903157\" alt=\"\" width=\"1198\" height=\"8\"\u003e\u003c\/div\u003e","brand":"TOPDON","offers":[{"title":"Default Title","offer_id":49287143194778,"sku":"TD52110009","price":69.3,"currency_code":"PKR","in_stock":true}],"url":"https:\/\/coretarps.co.uk\/products\/topdon-btmobilelite-12v-wireless-battery-tester","provider":"My Store","version":"1.0","type":"link"}