--- product_id: 628772972 title: "J400 Portable Jump Starter, 12V 2000A Lithium Battery Booster with ConnectMax Tech, Car Jumper Box for Up to 8.0L Gas & 6.0L Diesel Engines, Smart Digital Display" brand: "lokithor" price: "€ 141.99" currency: EUR in_stock: true reviews_count: 9 url: https://www.desertcart.gr/products/628772972-j400-portable-jump-starter-12v-2000a-lithium-battery-booster-connectmax store_origin: GR region: Greece --- # 2000A peak current 5.75-inch smart digital display 6400mAh lithium polymer battery J400 Portable Jump Starter, 12V 2000A Lithium Battery Booster with ConnectMax Tech, Car Jumper Box for Up to 8.0L Gas & 6.0L Diesel Engines, Smart Digital Display **Brand:** lokithor **Price:** € 141.99 **Availability:** ✅ In Stock ## Summary > ⚡ Power up your ride and never get stranded again! ## Quick Answers - **What is this?** J400 Portable Jump Starter, 12V 2000A Lithium Battery Booster with ConnectMax Tech, Car Jumper Box for Up to 8.0L Gas & 6.0L Diesel Engines, Smart Digital Display by lokithor - **How much does it cost?** € 141.99 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/628772972-j400-portable-jump-starter-12v-2000a-lithium-battery-booster-connectmax) ## Best For - lokithor enthusiasts ## Why This Product - Trusted lokithor brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Safety First:** Advanced multi-layer protection including reverse polarity, short circuit, and overcurrent safeguards for worry-free operation. - • **ConnectMax Tech:** Experience intelligent connection detection that optimizes output for faster, fail-proof starts every time. - • **Instant Power Surge:** Jump start dead batteries up to 8.0L gas & 6.0L diesel engines with 2000A peak current for up to 25 reliable starts per charge. - • **More Than a Jump Starter:** Fast USB charging for your devices plus a 300-lumen LED flashlight with SOS mode—your ultimate roadside companion. - • **Smart Control at a Glance:** Large 5.75-inch digital display delivers real-time battery status and alerts, empowering you with total confidence. ## Overview The LOKITHOR J400 Portable Jump Starter is a compact, high-capacity 12V lithium polymer battery booster delivering 2000A peak current. Compatible with up to 8.0L gas and 6.0L diesel engines, it offers up to 25 jump starts per charge. Featuring ConnectMax intelligent technology, advanced safety protections, a large smart digital display, fast USB charging, and a powerful 300-lumen LED flashlight with SOS mode, it’s engineered for reliable emergency power and convenience on the go. ## Description Focused on integrating of multifunctional automotive emergency tools, with combined with artificial intelligence technology, We and these tools and are committed to providing quality products. J400 J401 J401X J402 CASE003 Clamp10S ## Features - Start Dead Batteries Instantly – Jump start even completely drained batteries with up to 2000A peak current. Supports up to 8.0L gas / 6.0L diesel engines and delivers up to 25 starts per charge for reliable emergency power anytime. - ConnectMax Technology – Get faster and more reliable starts with intelligent connection detection. The system automatically adjusts output for maximum efficiency, reducing the risk of failed starts. - Advanced Safety Protection – Built with an intelligent battery management system (BMS) and smart clamps, this jump starter provides multiple layers of protection, including reverse polarity, short circuit, and overcurrent protection, ensuring safer and more reliable operation. - More Than a Jump Starter – Jump start your car, recharge your devices, and stay visible in the dark. With fast USB charging and a 300-lumen LED flashlight with SOS mode, you're prepared for roadside emergencies anytime. - Smart Display, Total Control – The large 5.75-inch screen gives you clear, real-time updates on battery status, connection, and alerts—so you always know exactly what’s happening and can jump start with confidence. - High-Rate Lithium Cells (80C) – Designed for extreme power delivery, the advanced battery cells provide faster energy release for stronger starts compared to conventional jump starters. - Confidence Guaranteed – Backed by a 12-month warranty and supported by LOKITHOR, every J400 is built to deliver reliable performance with everything included for immediate use. - The Best Gift of 2026 - Designed for Urgency. If you're still agonizing over gift choices, then the J400 is undoubtedly the best option for birthdays, Valentine's Day, Father's Day, Mother's Day, wedding anniversaries, Christmas, and New Year's gifts. ## Technical Specifications | Specification | Value | |---------------|-------| | Amperage | 2000 Amps | | Asin | B0CR1B6KX3 | | Automotive Fit Type | Universal Fit | | Battery Capacity | 6400 Milliamp Hours | | Battery Type | Lithium Polymer | | Best Sellers Rank | #6,898 in Automotive (See Top 100 in Automotive) #90 in Jump Starters | | Brand Name | LOKITHOR | | Compatible With Vehicle Type | ATV, Lawn Mower, Motorcycle, Passenger Car, Motorcycle, ATV, Van, RV, UTV, Truck, Watercraft, Tractor, Scooter, Snowmobile, Tractor, UTV, Watercraft | | Customer Reviews | 4.6 4.6 out of 5 stars (862) 4.6 out of 5 stars | | Included Components | J400 Jump Start Battery Pack, Jump Starter Clamp, USB-A to USB-C, User Manual | | Item Dimensions D X W X H | 3.39"D x 6.89"W x 1.69"H | | Item Type Name | J SERIES | | Item Weight | 450 Grams | | Manufacturer | LOKITHOR | | Manufacturer Part Number | J400 | | Manufacturer Warranty Description | 1 year manufacturer | | Model Number | J400 | | Peak Output Current | 2000 Amps | | Specification Met | CE, UL | | Unit Count | 1.0 Count | | Upc | 198168735701 | | Voltage | 12 Volts | ## Product Details - **Battery Cell Composition:** Lithium Polymer - **Brand:** LOKITHOR - **Product Dimensions:** 3.39"D x 6.89"W x 1.69"H - **Voltage:** 12 Volts ## Images ![J400 Portable Jump Starter, 12V 2000A Lithium Battery Booster with ConnectMax Tech, Car Jumper Box for Up to 8.0L Gas & 6.0L Diesel Engines, Smart Digital Display - Image 1](https://m.media-amazon.com/images/I/71pkU7DRrpL.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ A High quality jump starter *by on Reviewed in the United States June 18, 2026* This is an excellent product! My car had been sitting for over a year and the battery was completely drained I was told I needed a new one. This jumper was VERY simple to use for a person who hates dealing with anything car related , it came almost 100% charged, & once I connected it to my battery terminal it immediately started my car. This lil thing packs a lot of power I was pleasantly surprised. I would highly recommend and its certainly worth it and cheaper than calling & waiting for a tow or having to waste your time on AAA. Its a great quality item overall im pleased with this purchase ### ⭐⭐⭐⭐⭐ A very good jump box!! *by on Reviewed in the United States June 3, 2026* A very good jump pack for the low price I paid for it. It’s come in real handy. I’ve jumped my car at least 6 times since I bought it. My car battery has finally given up on me so I had to replace it, but for a small jump pack it is worth it. It does its job, and quick too. I’ve been able to jump my car in less than 30 seconds after hooking it up. Definitely worth the money, and it’s so easy to use. ### ⭐⭐⭐⭐⭐ 5 Stars – Reliable, powerful lifesaver for dead batteries! *by on Reviewed in the United States June 9, 2026* I picked up the jump pack just in case my truck ever died, and guess what happened after 2 months? it worked perfectly right out of the box. This thing packs a serious punch with its 2000A peak current – it fired up my 6.5L diesel without any hesitation, and the product claims support up to 8.0L gas or 6.0L diesel engines. The ConnectMax Tech made the connection super safe and foolproof; no sparks or worrying about reverse polarity. I picked up the LOKITHOR J400 Portable Jump Starter after my truck battery died in a parking lot during cold weather, and it worked perfectly right out of the box. This thing packs a serious punch with its 2000A peak current – it fired up my 6.5L diesel without any hesitation, and the product claims support up to 8.0L gas or 6.0L diesel engines. The ConnectMax Tech made the connection super safe and foolproof; no sparks or worrying about reverse polarity. For the price (especially with any deals), this is way better value than calling a tow truck or dealing with sketchy jumper cables. Highly recommend for anyone who drives regularly or travels – peace of mind in a small package. Five stars, no regrets! ## Frequently Bought Together - LOKITHOR J400 Jump Starter with ConnectMax Tech, 2000A 12V Battery Jumper Starter Portable, Lithium Jump Box and Jump Pack for Up to 8.0-Liter Gas and 6.0-Liter Diesel Engines, Smart Digital Screen - LOKITHOR J-Series Storage Bag EVA Protection Case for J400/J401/J401X/J402/J1350 PRO/J2250 PRO/JP400 LOKITHOR Battery Jump Starters - LOKITHOR JP400 Jump Starter with Air Compressor, 2500A 12V Car Battery Jumper Starter Portable (8.5L Gas/6.5L Diesel) with ConnectMax Tech, 150PSI Tire Inflator, Auto-Shutoff & Dynamic Dwell --- ## 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.gr/products/628772972-j400-portable-jump-starter-12v-2000a-lithium-battery-booster-connectmax](https://www.desertcart.gr/products/628772972-j400-portable-jump-starter-12v-2000a-lithium-battery-booster-connectmax) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-07-04*