Skip to product information
1 of 7

12V/24V Heavy-Duty Car Jump Starter | 42000mAh 6000A Peak Power

12V/24V Heavy-Duty Car Jump Starter | 42000mAh 6000A Peak Power

🔥 1 sold✓ In stock
Regular price $3,726.00 TWD
Regular price Sale price $3,726.00 TWD
Sale Sold out
Shipping calculated at checkout.
Quantity

Short Product Description

Never get stranded with a dead battery again. The CY12V-24V-7 Heavy-Duty Automobile Emergency Jump Starter is a professional-grade power supply boasting a massive 42000mAh capacity and a highly reliable 6000A peak current. Uniquely designed with dual-voltage support, it effortlessly jump-starts both 12V everyday cars and heavy-duty 24V commercial trucks. Featuring 12-layer smart protection, dual USB ports, and an emergency LED flashlight. Need a reliable jump starter for your fleet? Sun Cheong Computer Co. Ltd. has over 20 years of technical expertise. Visit our Sham Shui Po physical store for instant pickup and expert on-site operational advice!

Key Features

  • Dual Voltage Support (12V/24V): Dedicated terminal posts allow you to safely jump-start both 12V passenger cars and heavy-duty 24V commercial trucks.
  • Reliable 6000A Peak Current: Delivers honest, massive cranking power to start large displacement gas and diesel engines instantly.
  • Colossal 42000mAh Capacity: Provides multiple jump-starts on a single charge and acts as a high-capacity power bank for USB devices.
  • 12-Layer Smart Protection: Built-in safeguards against reverse polarity, short circuits, and over-temperature ensure 100% safe operation.
  • Emergency LED Flashlight: Features a multi-mode ultra-bright LED light (including Strobe and SOS) for safe nighttime roadside repairs.
  • Dual AC Chargers Included: Comes with two dedicated AC chargers (12.6V and 16.8V) to ensure the internal battery cells are optimally balanced and charged.

Full Product Description

Professional-Grade Jump Starting for Cars & Commercial Trucks

When you are managing a commercial fleet or driving off-road, a standard consumer jump starter simply doesn't have the real-world power to turn over heavy-duty engines. The CY12V-24V-7 Emergency Jump Starter is engineered for extreme, honest performance. With a dedicated toggle switch and separate heavy-duty terminal posts for 12V and 24V systems, this single device can instantly jump-start everything from a family sedan to a massive 24V commercial lorry, tractor, or excavator.

Massive 42000mAh Capacity & Reliable 6000A Peak Current

Unlike many brands that exaggerate their specifications, this jump starter is rated conservatively for maximum reliability. Housed in a rugged, fireproof ABS casing, it packs a colossal 42000mAh lithium battery. It delivers a true, earth-shattering 6000A peak current for 12V vehicles and a 3000A peak current for 24V vehicles, ensuring a successful engine crank even in freezing temperatures (-20°C to 60°C). Beyond jump-starting, it serves as a massive power bank with dual 5V/2A USB outputs to keep your smartphones and tablets charged during emergencies.

12-Layer Smart Protection System

Safety is paramount when dealing with thousands of amps. This device is equipped with an advanced AI software protection system featuring 12 layers of safety protocols. It actively prevents short circuits, overcurrent, overcharging, over-discharging, and reverse connections. If you accidentally connect the clamps incorrectly, the system will protect both the jump starter and your vehicle's delicate ECU from catastrophic electrical damage.

💡 Pro Tip from Our Technicians

"Using a dual-voltage jump starter requires care! Always connect the black clamp to the vehicle's negative terminal first. Then, carefully select the correct red terminal on the back of the jump starter (either the 12V+ or 24V+ port) before connecting the red clamp to your battery. Never crank the engine for more than 5 seconds at a time; if it doesn't start, wait 30 seconds before trying again to prevent overheating. If you are a fleet manager and want to test this unit's capabilities, drop by our Sham Shui Po store! Our team at Sun Cheong Computer Co. Ltd. will walk you through the safest jump-starting procedures."

Technical Specifications

Specification Details
Model CY12V-24V-7
Battery Capacity 42000mAh
Supported Vehicles 12V Cars / 24V Commercial Trucks
12V Start / Peak Current 3000A / 6000A
24V Start / Peak Current 1500A / 3000A
Input Charging Voltage 12.6V / 16.8V (Dual AC Chargers Included)
USB Output Dual USB 5V/2A
DC Output 12V-16.8V / 10A (Max)
Operating Temperature -20°C to 60°C
Dimensions 270mm x 138mm x 255mm
Material Fireproof ABS Casing

Delivery Options

  • Local delivery within Hong Kong and in-store pickup.​
  • Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.​
  • Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).​
  • Estimated delivery time: 1–3 business days after dispatch (Hong Kong).​
  • In-store pickup details (location and time) will be confirmed by email or phone message.​
  • Delivery times are estimates and may be affected by weather or unforeseen circumstances.​

FAQ Section

  • Commercial Fleet Managers: Equipping truck drivers and logistics vehicles with a reliable 24V jump starter to prevent costly delivery delays.
  • Tow Truck & Roadside Assistance Operators: A portable, high-power alternative to carrying heavy lead-acid jump boxes for rescuing stranded motorists.
  • Off-Road & RV Enthusiasts: Providing massive backup power for 12V/24V dual-battery systems in overland vehicles and campervans.

Target Users / Applications

  • Can this jump starter be used for both 12V cars and 24V trucks?Yes, absolutely. This device is specifically engineered for both. It features a physical toggle switch on the front panel and two separate positive terminal posts on the back (one for 12V and one for 24V). You must ensure you plug the red clamp into the correct terminal that matches your vehicle's battery voltage.
  • How do I correctly connect the battery clamps to my vehicle?First, connect the black clamp to the vehicle battery's negative (-) terminal. Second, plug the red cable into the correct voltage port (12V+ or 24V+) on the back of the jump starter. Finally, connect the red clamp to the vehicle battery's positive (+) terminal. Do not reverse this order.
  • What should I do if the jump starter is not used for a long time?To maintain the health of the internal lithium battery, you should recharge the jump starter every 3 months if it is kept in storage or in your car's trunk. Never store it in a completely depleted state.
View full details