--- product_id: 745413208 title: "NOCO Boost X GBX155 4250A 12V UltraSafe Portable Lithium Jump Starter, Car Battery Booster Pack, USB-C Powerbank Charger, and Jumper Cables for Up to 10.0-Liter Gas and 8.0-Liter Diesel Engines" brand: "noco" price: "¥16400" currency: JPY in_stock: false url: https://www.desertcart.jp/products/745413208-noco-boost-x-gbx155-4250a-12v-ultrasafe-portable-lithium-jump store_origin: JP region: Japan --- # 4250A peak jump power 60W USB-C power delivery 2.7-hour full recharge NOCO Boost X GBX155 4250A 12V UltraSafe Portable Lithium Jump Starter, Car Battery Booster Pack, USB-C Powerbank Charger, and Jumper Cables for Up to 10.0-Liter Gas and 8.0-Liter Diesel Engines **Brand:** noco **Price:** ¥16400 **Availability:** ❌ Out of Stock ## Summary > ⚡ Power Up Fast, Stay Unstoppable ## Quick Answers - **What is this?** NOCO Boost X GBX155 4250A 12V UltraSafe Portable Lithium Jump Starter, Car Battery Booster Pack, USB-C Powerbank Charger, and Jumper Cables for Up to 10.0-Liter Gas and 8.0-Liter Diesel Engines by noco - **How much does it cost?** ¥16400 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/745413208-noco-boost-x-gbx155-4250a-12v-ultrasafe-portable-lithium-jump) ## Best For - noco enthusiasts ## Why This Product - Trusted noco brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **UltraSafe 2.0 Tech:** Spark-proof, reverse polarity protection, and enhanced thermal management for worry-free use. - • **Turbo Charge Your Life:** USB-C PD recharges Boost X fully in 2.7 hours or jump start-ready in just 5 minutes. - • **Powerbank for All Your Devices:** 60W USB-C output charges phones, laptops, tablets—stay connected on the go. - • **Extreme Power, Extreme Confidence:** 4250 amps to jump start up to 10L gas & 8L diesel engines—never get stranded again. - • **Versatility That Matches Your Hustle:** Compatible with cars, trucks, boats, ATVs, SUVs, and more—one device for every ride. ## Overview The NOCO Boost X GBX155 is a cutting-edge 4250-amp portable lithium jump starter designed for professional-grade reliability. It supports jump starting large engines up to 10.0L gas and 8.0L diesel, recharges rapidly via USB-C Power Delivery in under 3 hours, and doubles as a 60W power bank for your USB-C devices. Enhanced UltraSafe 2.0 technology ensures safe, mistake-proof operation, making it the ultimate all-in-one emergency power solution for modern professionals on the move. ## Description NOCO Boost X GBX155 4250A 12V UltraSafe Portable Lithium Jump Starter, Car Battery Booster Pack, USB-C Powerbank Charger, and Jumper Cables for Up to 10.0-Liter Gas and 8.0-Liter Diesel Engines : desertcart.in: Car & Motorbike ## Features - X for Extreme - An all-new design with extreme jump starting power for powerful engines starts. Rated at 4250-amps, this portable lithium car battery jump starter releases maximum energy at every start. This isn't an upgrade. It's a whole new series - the Extreme Series. - Turbo Chargeable - Boost X is equipped with USB-C technology that, combined with power delivery, gives you lightning-fast recharges. Completely recharges in just 2.7-hours, or go from 0% to jump starting in just 5-minutes of charge. - Charge Everything - With USB-C Power Delivery, you have the power to charge almost everything. Its internal power bank provides 60-watts of power - both in and out - to effortlessly power your favorite USB-C devices, like phones, tablets, laptops, wearables, and more. - UltraSafe 2.0 - We took our UltraSafe technology and made it better. It's still our simple, mistake-free design featuring spark-proof technology and reverse polarity protection, but with enhanced thermal efficiency and power management to provide better performance and longer battery life. - Maximum Versatility - Boost X is one of the most versatile lithium jump starters ever. Jump start all vehicle types, including cars, motorcycles, trucks, ATVs, boats, RVs, vans, SUVs, tractors, and more for up to 10.0-liter gasoline and 8.0-liter diesel engines. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08WZFPXFM | | Amperage | 4250 Amps | | Battery Capacity | 4250 Amp Hours | | Brand Name | NOCO | | Compatible with Vehicle Type | ATV, Boat, Motorcycle, Passenger Car, SUV, Tractor, Truck, Van | | Customer Reviews | 4.2 4.2 out of 5 stars (7,066) | | Global Trade Identification Number | 00046221200096 | | Item Weight | 7.01 Pounds | | Manufacturer | NOCO | | Manufacturer Part Number | GBX155 | | Manufacturer Warranty Description | No Warranty | | Model | GBX155 | | Peak Output Current | 4250 Amps | | Specification Met | CE | | UPC | 046221200096 | | Voltage | 12 Volts | | Whats in the box? | 12V USB-C Fast Charger, Heavy-Duty Jumper Cable Clamps, Microfiber Storage Bag, NOCO Boost X GBX155 Jump Starter, USB-C Charging Cable | ## Product Details - **Battery Capacity:** 4250 amp_hours - **Brand:** NOCO - **Item Weight:** 7.01 Pounds - **Vehicle Service Type:** ATV, Boat, Motorcycle, Passenger Car, SUV, Tractor, Truck, Van - **Voltage:** 12 Volts ## Images ![NOCO Boost X GBX155 4250A 12V UltraSafe Portable Lithium Jump Starter, Car Battery Booster Pack, USB-C Powerbank Charger, and Jumper Cables for Up to 10.0-Liter Gas and 8.0-Liter Diesel Engines - Image 1](https://m.media-amazon.com/images/I/41hGhmY2sES.jpg) ![NOCO Boost X GBX155 4250A 12V UltraSafe Portable Lithium Jump Starter, Car Battery Booster Pack, USB-C Powerbank Charger, and Jumper Cables for Up to 10.0-Liter Gas and 8.0-Liter Diesel Engines - Image 2](https://m.media-amazon.com/images/I/510s6db3nvS.jpg) ![NOCO Boost X GBX155 4250A 12V UltraSafe Portable Lithium Jump Starter, Car Battery Booster Pack, USB-C Powerbank Charger, and Jumper Cables for Up to 10.0-Liter Gas and 8.0-Liter Diesel Engines - Image 3](https://m.media-amazon.com/images/I/51nR1elSYpL.jpg) ![NOCO Boost X GBX155 4250A 12V UltraSafe Portable Lithium Jump Starter, Car Battery Booster Pack, USB-C Powerbank Charger, and Jumper Cables for Up to 10.0-Liter Gas and 8.0-Liter Diesel Engines - Image 4](https://m.media-amazon.com/images/I/515Rr0KWSHL.jpg) ![NOCO Boost X GBX155 4250A 12V UltraSafe Portable Lithium Jump Starter, Car Battery Booster Pack, USB-C Powerbank Charger, and Jumper Cables for Up to 10.0-Liter Gas and 8.0-Liter Diesel Engines - Image 5](https://m.media-amazon.com/images/I/51iAq6UDTVS.jpg) ## Questions & Answers **Q: Can i charge a noco boost x gbx155 jump starter with a noco xgc4 56-watt xgc power adapter?** A: I own both the NOCO GBX155 jump starter, as well as the XGC4 56 watt fast charge power adapter. I can absolutely confirm that this 56 watt power adapter is not compatible with the GBX155. The charger does not have the proper connection. I confirmed with NOCO that the 2 devices are not compatible. It is absolutely inexcusable that NOCO does not have a method of fast charging the GBX155 using ordinary house current. The output of the XGC4 56 watt device is a male cylindrical output (precise size unknown to me), and the input of the GBX155 is a USB-C, I believe. I don't know if some sort of adapter is available, and if it is, if there is some sort of other electrical incompatibility issue that might exist. I think that the mfg. says that the included USB cable is not suitable for fast charging- I think maybe a special higher capacity USB cable needs to be purchased, but I am not sure on this point. Using the included cable, plus an Iphone charger (I think a 12 watt - output = 5 volts at 2400 mA), a full charge (solid, unblinking green light) takes a little over 16 hours when being charged for the first time. The GBX155 did arrive with a partial 2 yellow light charge, so it may take longer to charge when almost completely drained. I think it may be able to be fast charged using the included car cigarette lighter adapter, but I am not sure of this point. You would probably need to do this while the car engine is running (i.e. on a long trip) so that the car battery was not excessively drained. But I am not sure of this point. As of now 12/30/21, (had for 1 day), I have not actually used this for anything, so I can't report on its functionality. I plan on using it for dead car batteries, and perhaps dead cell phone batteries (in an emergency situation etc) Once again, it is absolutely inexcusable that NOCO does not have available a method to fast charge this battery booster. It is even worse that Amazon still has these 2 items- GBX155 and XGC4, listed as 'Being frequently bought together'. They are definitely not compatible. I was foolishly misled by this, as apparently were other Amazon customers. SHAME on both Amazon and NOCO! The GBX155 does appear to be of excellent quality, and well made. **Q: What is the Mah rating on this device?** A: The user manual rates it at 99 watt hours and it supports a variable output voltage of between 5 and 20 watts. So, running at 5 volts, your mAH would be 99Wh / 5V = 19.8 Ah * 1000 = 19,800 mAH. At 12 volts, you would have 99 / 12 * 1000 = 8,250 mAH. At 20 volts, 99 / 20 * 1000 = 4,950 mAH. From what I've seen, USB power banks usually use the 5V standard for calculating mAH, so for comparison purposes, this is probably the one you'll want to use. Hope this helps! **Q: What is the correct Noco email for customer support?** A: support@no.co (That is indeed supposed to read ".co", NOT ".com") **Q: The boost led does not come on after i plugged it into the battery? any help would be appreciated it** A: Does any other lights flash? I had a short in the alternator and would cause the exclamation icon next to the battery gauge to flash and the boost LED would not come on. ## Frequently Bought Together - NOCO Boost X GBX155: 4250A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack, Portable Jump Box, Power Bank & Jumper Cables - for 6.5L Gas and 4.0L Diesel Engines - NOCO GBC104 Boost X EVA Protection Case for GBX155 UltraSafe Lithium Jump Starters - TAIFU 65W USB C NOCO GBC011 Power Adapter Battery Charger for NOCO Boost X GBX45 1250A GBX55 GBX75 1750A GBX75 2500A GBX155 4250A & Boost Air AX65 UltraSafe Portable Jump Starter Power Supply Cord --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/745413208-noco-boost-x-gbx155-4250a-12v-ultrasafe-portable-lithium-jump](https://www.desertcart.jp/products/745413208-noco-boost-x-gbx155-4250a-12v-ultrasafe-portable-lithium-jump) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-25*