{"product_id":"the-winter-spark-gooloo-gt4000-jump-starter","title":"The Winter Spark | GOOLOO GT4000 4000A Jump Starter and Power Bank","description":"\u003cdiv class=\"product-narrative\"\u003e\n\u003cp\u003e\u003cstrong\u003eA Flat Battery Does Not Care That You Are Late.\u003c\/strong\u003e It happens in a car park at night, in a lay-by in February, and at the moment the ferry is boarding. What decides whether the day continues is a pack that will still deliver after months in a boot, and a claimed cold rating that turns out to be real when you are the one holding it.\u003c\/p\u003e\n\u003cp\u003eThe GT4000 carries a 24,000 mAh 3.7 volt lithium pack built from four cells, rated for more than a thousand cycles and for a peak output of 4,000 amps with a starting current of 800 amps sustained over three seconds. That translates into a gas engine rating up to 12.0 litres and a diesel rating up to 10.0 litres, which covers the vehicles most roadside calls involve. It offers roughly forty ignitions from a full charge, and the pre-heating technology is designed for cold starts down to minus forty, which is the specification that matters on the morning when nothing else works.\u003c\/p\u003e\n\u003cp\u003eThe charging side is where it separates from the older generation of boosters. Two-way fast charging at up to 100 watts refills the pack from empty in under 1.2 hours, with a five minute top-up restoring 20 percent, and the same port charges a laptop at 100 watts through USB-C power delivery. A second USB output runs Qualcomm Quick Charge 3.0 at 18 watts, a third runs 5 volts at 2.4 amps, and the DC output supplies 15 volts at 10 amps for 150 watts. A 3.2 inch LED screen shows battery level, operating status and error codes rather than leaving you to interpret a row of dots. Ten built-in protections guard the output, the housing is waterproof, and the light offers illumination, SOS and strobe modes at 400 lumens.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eCold mornings are a specification, not an excuse.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003chr style=\"margin: 20px 0; border: 0; border-top: 1px solid #eee;\"\u003e\u003cdiv class=\"product-features\"\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul style=\"list-style: none; padding: 0;\"\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e✦ 4,000 A peak output with 800 A starting current sustained over three seconds\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e✦ 24,000 mAh 3.7 V lithium pack built from four cells, rated for over 1,000 cycles\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e✦ Gas engine rating up to 12.0 litres and diesel engine rating up to 10.0 litres\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e✦ Pre-heating technology designed for cold starts down to minus forty\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e✦ Two-way fast charging at up to 100 W, refilling from empty in under 1.2 hours\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e✦ Five minute charge restores 20 percent, ready for an immediate jump start\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e✦ USB-C power delivery output at up to 100 W for laptops, plus Quick Charge 3.0 at 18 W and a DC output at 150 W\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e✦ 3.2 inch LED screen showing battery level, status and error codes, with a 400 lumen light in illumination, SOS and strobe modes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003chr style=\"margin: 20px 0; border: 0; border-top: 1px solid #eee;\"\u003e\u003cdiv class=\"product-specs\"\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul style=\"list-style: none; padding: 0;\"\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e GOOLOO\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e GT4000\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eBattery capacity:\u003c\/strong\u003e 24,000 mAh at 3.7 V, four built-in cells\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eBattery cycle life:\u003c\/strong\u003e Over 1,000 cycles\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003ePeak current:\u003c\/strong\u003e 4,000 A (listed alongside a greater than 1,200 A rating)\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eStarting current:\u003c\/strong\u003e 800 A for 3 seconds\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eJump start output:\u003c\/strong\u003e 12 V\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eGas engine rating:\u003c\/strong\u003e Up to 12.0 L\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eDiesel engine rating:\u003c\/strong\u003e Up to 10.0 L\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eIgnitions per charge:\u003c\/strong\u003e Approximately 40\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eCharging time:\u003c\/strong\u003e Under 1.2 hours from empty at 100 W; 20 percent in 5 minutes\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eCharging method:\u003c\/strong\u003e Two-way fast charging, 100 W\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eUSB-C output:\u003c\/strong\u003e Power delivery, up to 100 W\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eUSB 1 output:\u003c\/strong\u003e Quick Charge 3.0, up to 18 W (5 V 3 A, 9 V 2 A, 12 V 1.5 A)\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eUSB 2 output:\u003c\/strong\u003e 5 V at 2.4 A\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eDC output:\u003c\/strong\u003e 15 V at 10 A, up to 150 W\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eDisplay:\u003c\/strong\u003e 3.2 inch LED screen with battery level, status and error codes\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eLight output:\u003c\/strong\u003e 400 lumens, illumination, SOS and strobe modes\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eOperating temperature:\u003c\/strong\u003e Listed as minus 40 to minus 60, with pre-heating rated for cold starts at minus 40\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eConversion rate:\u003c\/strong\u003e 85 to 90 percent\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eProtections:\u003c\/strong\u003e Ten built-in protections, SUPER SAFE registration 5904374\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.1 kg\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eWater resistance:\u003c\/strong\u003e Waterproof\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e UL, RoHS, MSDS, FCC, CE\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 365 days, plus 365 additional days for registered GOOLOO owners\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003chr style=\"margin: 20px 0; border: 0; border-top: 1px solid #eee;\"\u003e\u003cdiv class=\"product-applications\"\u003e\n\u003ch3\u003eWhere It Belongs\u003c\/h3\u003e\n\u003cp\u003eThe boot of a car that sits unused for weeks is the first home for a pack like this, because a booster that has to be charged before it can help is a booster that fails. Diesel owners get the 10.0 litre rating, which is the figure that covers vans and light commercials rather than only passenger cars. Cold-climate drivers have the clearest case: the pre-heating function exists because lithium chemistry loses output in freezing weather, and the minus forty cold-start rating is what makes the difference between a start and a tow. Because the pack charges a laptop at 100 watts over USB-C and delivers Quick Charge 3.0 on a second port, it doubles as the power bank that travels instead of the smaller one in a bag. The 150 watt DC output runs tyre inflators, inverters and 12 volt accessories away from a vehicle socket. Fleet and site managers use one per vehicle and log the three-second starting current against the engine rating, which is the specification that tells them in advance whether a given machine is covered.\u003c\/p\u003e\n\u003c\/div\u003e\u003chr style=\"margin: 20px 0; border: 0; border-top: 1px solid #eee;\"\u003e\u003cdiv class=\"product-promise\" style=\"background: #fafafa; padding: 18px 20px; border-left: 3px solid #1a1a2e;\"\u003e\n\u003ch3 style=\"margin-top: 0;\"\u003eThe EastSupplier Promise\u003c\/h3\u003e\n\u003cp\u003eEvery unit is inspected before it leaves the warehouse. If a specification on this page does not match what arrives, we cover the return shipping and replace it. English-language support answers within one business day, and replacement parts for this category are stocked so a working unit stays working.\u003c\/p\u003e\n\u003c\/div\u003e\u003chr style=\"margin: 20px 0; border: 0; border-top: 1px solid #eee;\"\u003e\u003cdiv class=\"product-faq\"\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What size engine will it start?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUp to 12.0 litres for petrol and up to 10.0 litres for diesel according to the manufacturer ratings. The three-second starting current is 800 amps with a 4,000 amp peak, and a full charge delivers around forty ignitions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How long does it take to charge, and how fast can I use it?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA full charge from empty takes under 1.2 hours at 100 watts through two-way fast charging. A five minute connection restores 20 percent, which is enough for an immediate jump start.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will it work in freezing weather?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe pre-heating technology is designed for cold starts at minus forty, which is the manufacturer's answer to lithium output loss in low temperatures. The specification lists an operating temperature range of minus 40 to minus 60.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use it as a normal power bank?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The USB-C port delivers up to 100 watts of power delivery, which will charge a MacBook or similar laptop, and the second USB port runs Quick Charge 3.0 at up to 18 watts. A third port provides 5 volts at 2.4 amps for phones and accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What does the screen show?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 3.2 inch LED screen reports battery level, operating status and specific error codes, so a failed start can be diagnosed rather than guessed at. The light element runs at 400 lumens in illumination, SOS and strobe modes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How safe is it to leave connected?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTen built-in protections are listed, covering the output against the fault conditions that damage batteries and vehicles, and the unit carries UL, RoHS, MSDS, FCC and CE certification. It is also rated waterproof.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the warranty?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e365 days as standard, with an additional 365 days for registered GOOLOO owners, taking the cover to two years for a registered unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003chr style=\"margin: 20px 0; border: 0; border-top: 1px solid #eee;\"\u003e\u003cdiv class=\"product-gallery\" style=\"margin-top: 30px; text-align: center;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S2605413b53ee4189b310da6c0b48f9ad9.webp?v=1760504156\" alt=\"The Winter Spark | GOOLOO GT4000 4000A Jump Starter and Power Bank\" style=\"max-width: 100%; height: auto; margin: 8px 0; border-radius: 6px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S506ad162dae14424bdb151faf407a196S.webp?v=1760504157\" alt=\"The Winter Spark | GOOLOO GT4000 4000A Jump Starter and Power Bank\" style=\"max-width: 100%; height: auto; margin: 8px 0; border-radius: 6px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S4607f938d86f49538ffdc218913fbc4d4.webp?v=1760504157\" alt=\"The Winter Spark | GOOLOO GT4000 4000A Jump Starter and Power Bank\" style=\"max-width: 100%; height: auto; margin: 8px 0; border-radius: 6px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S3708f03e909e48baa4699ce734664301w.webp?v=1760504157\" alt=\"The Winter Spark | GOOLOO GT4000 4000A Jump Starter and Power Bank\" style=\"max-width: 100%; height: auto; margin: 8px 0; border-radius: 6px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S7a8aa5d2cb10489db7475ebb07c54ee2Y.webp?v=1760504157\" alt=\"The Winter Spark | GOOLOO GT4000 4000A Jump Starter and Power Bank\" style=\"max-width: 100%; height: auto; margin: 8px 0; border-radius: 6px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S1a990731f5c6464eaa46114bc91826bbW.webp?v=1760504157\" alt=\"The Winter Spark | GOOLOO GT4000 4000A Jump Starter and Power Bank\" style=\"max-width: 100%; height: auto; margin: 8px 0; border-radius: 6px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Sdf7ccd0eb0b84ef88e7bb9aca60585eaE.webp?v=1760504157\" alt=\"The Winter Spark | GOOLOO GT4000 4000A Jump Starter and Power Bank\" style=\"max-width: 100%; height: auto; margin: 8px 0; border-radius: 6px;\"\u003e\n\u003c\/div\u003e\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"Product\",\"name\":\"The Winter Spark | GOOLOO GT4000 4000A Jump Starter and Power Bank\",\"brand\":{\"@type\":\"Brand\",\"name\":\"EastSupplier\"},\"description\":\"GOOLOO GT4000 jump starter and power bank with a 24,000 mAh lithium pack, 4,000 A peak output, 800 A starting current, 100 W two-way fast charging and pre-heating for cold starts at minus forty.\",\"image\":[\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S2605413b53ee4189b310da6c0b48f9ad9.webp?v=1760504156\"],\"offers\":{\"@type\":\"AggregateOffer\",\"priceCurrency\":\"USD\",\"lowPrice\":\"415.34\",\"highPrice\":\"415.34\",\"offerCount\":1,\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/eastsupplier.com\/products\/the-winter-spark-gooloo-gt4000-jump-starter\"},\"aggregateRating\":{\"@type\":\"AggregateRating\",\"ratingValue\":\"4.75\",\"reviewCount\":\"4\"}}\n\u003c\/script\u003e","brand":"East Supplier Platform","offers":[{"title":"GT4000-RD \/ Mexico","offer_id":47494456213727,"sku":"1005003777156437-GT4000-RD-Mexico","price":415.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S2605413b53ee4189b310da6c0b48f9ad9.webp?v=1760504156","url":"https:\/\/eastsupplier.cn\/products\/the-winter-spark-gooloo-gt4000-jump-starter","provider":"EastSupplier Platform","version":"1.0","type":"link"}