YESPER offers a range of portable jump starters designed to provide reliable assistance for vehicles with dead batteries. Their products are known for their high peak currents, advanced safety features, and additional functionalities.
Among their popular models is the YESPER X1 Multipurpose Vehicle Jump Starter, which delivers a peak current of 2000A and supports engines up to 8.0L gas or 6.0L diesel.
It comes with 10 safety protections, including over-charge, over-current, and short-circuit protection, and operates in extreme temperatures ranging from -4°F to 140°F.
Another high-performance model is the YESPER SPEED 4120 Multipurpose Vehicle Jump Starter, boasting a 4120A peak current.
It is capable of jump-starting all gas engines and up to 10.0L diesel engines while maintaining a lightweight design at approximately 1.71 lbs.
The YESPER Armor Mini Multipurpose Vehicle Jump Starter is a more compact option, offering 1200A peak current and supporting up to 6.0L gas or 4.0L diesel engines.
It includes a “Boost” feature to revive completely dead batteries and incorporates 10 advanced safety technologies, functioning efficiently in temperatures from -4°F to 140°F.
YESPER jump starters have received positive reviews from users, with the YESPER X1 being praised for its ease of use and effectiveness in jump-starting vehicles.
Additionally, it features an integrated air compressor, making it a versatile emergency tool.
Overall, YESPER jump starters are recognized for their robust performance, safety, and user-friendly design, making them a reliable choice for vehicle owners in need of dependable emergency power solutions.
The YESPER SPEED 4120 Multipurpose Vehicle Jump Starter
The YESPER SPEED 4120 Multipurpose Vehicle Jump Starter is a portable lithium-ion battery pack designed to deliver a peak current of 4,120 amps, enabling it to jump-start 12-volt vehicles, including all gasoline engines and diesel engines up to 10.0 liters in capacity.
Where to Get It: YESPER SPEED 4120 Jump Starter
Weighing approximately 1.71 pounds, this compact device is both lightweight and easy to handle.
Equipped with eight safety protections, the YESPER SPEED 4120 ensures secure operation by safeguarding against common issues such as overcharging, overcurrent, and short circuits.
Beyond its primary function as a jump starter, it also serves as a 24,000mAh power bank, featuring multiple outlets to charge various devices, making it a versatile tool for emergencies.
User reviews highlight the device’s reliability and ease of use. For instance, a review notes that the YESPER Car Jump Box, with its 4,120A peak, effectively jump-starts vehicles and serves as a powerful 12V jump pack with additional features like a power bank, quick charge capabilities, and an LED light.
The YESPER SPEED 4120 stands out for its high power output, comprehensive safety features, and multifunctionality, making it a valuable addition to any vehicle emergency kit.
Using the YESPER SPEED 4120 Multipurpose Vehicle Jump Starter to start a dead car is straightforward. Follow these steps for a safe and effective jump-start:
Step 1: Ensure Safety Precautions
- Make sure the car is in park (P) or neutral (N) with the handbrake engaged.
- Turn off all electrical components like lights, radio, and AC.
- Ensure the jump starter is fully charged before use.
Step 2: Connect the Cables
- Red clamp (+) to Positive Terminal: Attach the red clamp to the positive (+) terminal of your car battery.
- Black clamp (-) to Negative Terminal or Ground: Attach the black clamp to the negative (-) terminal of the battery. If the battery is completely dead, connect the black clamp to a metal part of the engine block (unpainted surface) to reduce the risk of sparks.
Step 3: Turn on the Jump Starter
- Press and hold the power button on the YESPER SPEED 4120 to turn it on.
- If the battery is deeply discharged, press the “Boost” button (if available) on the jump starter to force-start the car.
Step 4: Start the Car
- Attempt to start the engine. If it doesn’t start immediately, wait about 30 seconds and try again.
- Do not crank the engine for more than 5 seconds at a time. If it doesn’t start after multiple attempts, wait a few minutes before trying again.
Step 5: Disconnect the Jump Starter
- Once the engine starts, turn off the jump starter before disconnecting the clamps.
- Remove the black clamp (-) first, then the red clamp (+).
Step 6: Let the Car Run
- Keep the engine running for at least 10-15 minutes to allow the alternator to recharge the battery.
If the car doesn’t start after multiple attempts, the battery might be too damaged or there could be another issue, such as a faulty alternator.
Where to Get It: YESPER SPEED 4120 Jump Starter