The yesper yjs40 jump starter
Every car driver must have the YESPER YJS40 jump starter in their car. This is the tool you buy never wanting to use, but to have when you need. People choose it because it is reliable and cost-efficient. Find all its advantages here!
4120 Peak Amps
All Gas Engines
24,000 mAh Battery Bank
12V Compatible
10L Diesel Engines
3 Mode LED Flashlight
pros and cons of the YJS40
PROS
Great Value for the Money
Easy to use
Boosts most gas and diesel engines
Compact and portable design
Protective Case Included
Cigarette Lighter Adapter
Charge your smartphone and other gadgets
10 Protection Safety Layers including short circuit and reverse connection detection
Boost mode available
Embedded 3 Mode flashlight
CONS
Short Jumper cables
Long charge time
about this item and product specs
Why should you get a Yesper YJS40 jump starter? Discover all the features this jumper pack comes with and you’ll know why this is a must have in every car of your family.
Peak Amps
4120A
Gas Engines
All
Flashlight
Yes
Weight
3.37 lb
DC Output
Yes – 15V
Battery Bank
24,000 mAh
Battery
Lithium
Operating Temperature
-4℉ to 140℉
Voltage
12 Volts
Diesel Engines
10.0L
USB Ports
2x Type A; 1x Type C
Dimensions
8.82 x 3.53 x 1.72 in
Boost Mode
Yes
Charge Time
4 hours
Safety Protections
10 layers including Spark-Proof & Wrong Connection Detection
| Feature | Meaning |
|---|---|
| 12V Compatible | It is compatible with motorcycles, cars, boats, lawnmowers, trucks, SUVs, minivans and pretty much everything that has a 12V battery. |
| 4120A | This is more than enough to jump start pretty much every gasoline car. |
| 60 Jump Starts | Depending on the size and conditions of the engines, the Yesper Speed 4120 can give up to 60 jump starts from a single charge. |
| Works in temperatures from -4℉ to 140℉ | It works in harsh temperatures. |
| 24,000 mAh battery capacity | Charge (several times) your smartphone and other gadgets via its USB ports. |
| All gas and up to 10L diesel engines | It doesn’t matter if you drive an F150, a Silverado, or even a big 7.3L Diesel engine, you still have the power to jump start that vehicle. |
| 10 Safety layers | The Yesper 4120A is spark proof (even if the clamps touch each other) and comes with reverse connection detection, and 8 additional protections to make jump starting your car a safe experience. |
| 15V DC output | Power up small appliances like vacuum cleaners, tire inflators and more. |
| LED Flashlight | A powerful LED flashlight with 3 different functions: Lamp, strobe and SOS. |
| IP65 Rated | This booster is water, dust, fire and shock resistant, and it is made of a sturdy and durable material for the wild life. |
IS THE PRICE OF THE yjs 40 battery jump starter worth it?
With this booster you are getting a type of insurance. You are buying peace of mind for the road, and the best is this is only a one-time payment thing, so when seen from that perspective its price seems pretty fair.
For $69.99 you get a very powerful jump starter that will probably be the only one you need in the next 10 years.
The Yesper YJS40 is among the top selling and most reliable jump starters because of the 4120 amps it can produce. Other brands sell comparable boosters at higher or lower prices, but with less features when compared to this one. Yesper truly delivers.
- 【 BOOSTER BATTERY JUMP STARTER】- Rated at REAL 4120-amps, the YJS40 can safely jump start all 12V vehicles(up to ALL gasoline and 10.0-liter…
- 【 DSLI IV INTELLIGENT CONTROL TECH 】 Compared with the previous technology, DSLI IV reassembling of the battery structure and microcomputer…
the yesper yjs40 jump starter compared with similar items
Advantages of owning the yesper yjs40 battery jump starter
| Great Price | Similar boosters are sold for more money and do not perform. The YSJ40 is the sure bet to get back on the road in seconds without having to break the bank account. |
| 24000 mAh battery bank | This jump box comes with 2 USB type A ports and one of them is Q.C. 3.0 labeled, which means your phone charges faster. It also has a USB type C port that works as input for charging the booster but also as an output port to power up your USB-C compatible devices. |
| Compact Design | The Yesper YSJ40 is small enough to fit anywhere in your car and pretty lightweight as well. Its dimensions are 8.82″D x 3.53″W x 1.72″H and it only weighs 3.37 lb. |
| Boost mode | This feature makes all the difference for this booster. The boost mode forces power to a car battery when is heavily discharged. Other boosters won’t detect a flat dead battery and would be useless. |
| Embedded LED flashlight | This lamp has 3 different functions to brighten your way in case you need it. Use it as a normal flashlight to see in the dark, or as a strobe or SOS signal to call for help. |
| Boosts all gas and most diesel engines in seconds | With the 4120 Amps the YJS40 produces, most cars get back to life in a matter of seconds. Use it in all gas and most diesel engines. |
| Easy to use | Just plug the jumper cables of the booster to the terminals of the battery. then turn on your car and you are good to go. As simple as that. |
| DC Output port | Power up other small appliances like vacuum cleaners, tire inflators, small compressors and more. |
| Does not require maintenance | This booster is maintenance-free. You just need to charge it and store it. That is it. |
| Up to 60 jump starts from a single charge | You may think that after jump starting a car the power of this unit would be depleted, but no. The Yesper YJS40 can give up to 60 jump starts on a single full charge before needing recharge. |
| Holds its power for months | Charge this booster and its internal battery will hold its charge for more than 6 months. If you happen to need it, you know it will be ready for use. |
| Water, dust and shock resistant | Water, dust and impacts can severely damage electronics. But the YJS 40 is protected against these thanks to its sturdy and durable construction. |
| 10 safety protection layers | Jump starting a car should not be scary. This 4210A booster has safety protection technology embedded in its electronics to avoid the scary sparks that can harm you and your car. |
| Works in rough ambient temperatures | Many times batteries die not because you left a light on but because the freezing temperatures. This booster can operate in ambient temperatures of -4℉ to 140℉. |
| Compatible with multiple vehicle types | You may think this only works with cars, but the truth is that if it has a 12V battery you can use this booster on it. Passenger cars, motorcycles, trucks, watercrafts, tractors, trailers, ATVs, UTVs, and snowmobiles can benefit from the use of this Yesper booster. |
what is in the box of this jump starter?
| Quantity | Product |
|---|---|
| 1 | Jump Starter |
| 1 | Jumper Clamps |
| 1 | USB A to USB C Cable |
| 1 | Cigarette Lighter Adapter |
| 1 | Carrying Case |
| 1 | User Manual |
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other benefits you get with this jump starter
Many people don’t know that jump starting a car with jumper cables can have a negative impact in the life and performance of the battery passing current.
When a person asks us if we can help to give them a boost, not all of us are aware of the damage we can do to our car, but since we want to do the right thing and be helpful, we do this without knowing the risks.
A booster like the YJS40 offers a safe, efficient, fast, secure, and easy way to help other people without having to put our cars in risk of an overcharge or something else.
Reviews of the Yesper 4120a jump starter
Don’t let its small size fools you, since this compact booster has true power inside and can boost some big diesel trucks and pretty much all gas cars.
It also comes with plenty of power to charge and power up your small gadgets like smartphones and tablets.
Its DC output can power small vacuum cleaners, lamps, tire inflators, air compressors, and more, and it comes with the adapter of DC plug to cigarette lighter in case you need it, so no need to buy a spare one.
The 3 Mode flashlight is pretty often underestimated but this is a very handy tool, and it works as a lamp, SOS and strobe light, so you can ask for help or warn others about a potential situation on the road.
Its price is a true bargain when you consider all you get with it, and compare it to similar capacity boosters.
The Yesper YJS 40 even comes with its protection bag, which is strong and made of a hard material, and not just fabric.
The only real downside of this booster are the 5 hours it takes to recharge, yet that is expected given the 24,000 mAh battery capacity it has. Still, you can mitigate this by charging it on the go.
All in all, Yesper released a great product with the YJS40 and people are taking advantage of it, since they know other brands sell boosters with this amount of power and features for double or more the amount you pay for this one.
Our Rating
Check these reviews of the YJS40 so you see how simple is to use this booster. As you’ll see, there is nothing complex about using this jump starter to get your car back on the road in a matter of seconds. Even if you haven’t used a jump starter in the past, these videos will show how simple is to operate them.
other popular jump starters from YESPER
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- 【 BOOSTER BATTERY JUMP STARTER】- Rated at REAL 2160-amps, the YJS20 can safely jump start all 12V vehicles(up to 9L gasoline and 7L diesel…
- 【 ACCURATE BATTERY CAPACITY 】 We do not exaggerate the battery capacity of our product. Our YJS40 jump starter has a true capacity of 16000mAh
- [Powerful Battery Jump Starter]-3000 Amps peak cranking amp; able to start vehicles with up to 10.0L Gas/8.0L Diesel engines in seconds; up to 60 jump…
- [Boost Start 100% Dead Car] – You can choose the time to start a completely dead car without relying on anyone. The YESPER car jump starter would be…
OPINIONS from CURRENT owners of the yesper jump starter yjs40
😀
I bought this after watching project farms test. I have it in my roadside kit. Unfortunately people just…
😕
Wouldn’t even jump my 3.5 altima with a dead battery even with the boost function it would only get the dash lights to come…
😀
This has got me out of a jam several times when my car battery died. Even though I have jumper cables there is not always someone there to let me jump off their car…
the yjs40 is very easy to use
Using this jump starter is very simple. Check this video for a better illustration on how to use it, yet again, its operation is very simple and intuitive.
While using the Yesper jump starter YJS40 is very simple, I want to post here a few notes based on my experience to ensure you have a very efficient and effective jump start.
First of all, place your booster somewhere in your car near the battery since the cables are not that long. Make sure that no moving parts are close to the booster to avoid damaging it when your engine starts.
Identify the positive and negative terminals of your battery so you get the connection right. The red clamp goes to the positive and the black to the negative. The booster will lit the reverse connection LED in the jumper cables connector if the connection is not right.
Here is where it gets tricky. If the battery if heavily discharged, the booster won’t detect the battery and neither a reversed connection. At this point the next step is to click the boost button on the side of the jumper cables connector to force power through the battery.
The caveat here is that this boost mode deactivates all protection layers and safety technology of the jump starter. If the connection is reversed, you may damage something in your car.
All the boosters in the market with a force start, boost or manual override mode, do this. They deactivate their protections to force power through the battery.
By all means make sure the connection is right before using that boost mode.
After this just turn your engine on and you are good to go.
other things to consider before buying this jump starter
While the Yesper YJS40 model is a great jump starter, there are some things you may want to know before getting it.
- Short jumper cables: While not a big deal, the length of the jumper cables is a bit short. This can make it complex to boost vehicles where the batteries are not easily accessible.
- Long charge time: Consider about 5 hours to fully charge the unit from a 0% battery level. The good news is you can charge this while on the go in your car so it is always ready for use.
CONCLUSIONS ABOUT THIS BOOSTER
If you are looking for a powerful, reliable and cost effective jump starter that will be ready to help you when you need it, the Yesper YJS40 is a really smart way to go.
Not only the package comes with all you need to use it right out of the box, but you are getting yourself some peace of mind for a truly reasonable price.
People who bought this booster agree this was one of the best investments they have made and they are not shy about saying they will get a unit for each car of their family members.
You are seeing one of the best jump starters at the best price in the market here. What are you waiting to get yours and avoid a dead battery ruins your day? Get it at the best price here!
get the yesper SPEED 4120a car jump starter today
- 【 BOOSTER BATTERY JUMP STARTER】- Rated at REAL 4120-amps, the YJS40 can safely jump start all 12V vehicles(up to ALL gasoline and 10.0-liter…
- 【 DSLI IV INTELLIGENT CONTROL TECH 】 Compared with the previous technology, DSLI IV reassembling of the battery structure and microcomputer…
▷ The Yesper YJS40 Jump Starter
The YESPER YJS40 Jump Starter gives up to ✅ 4120A to fire up all gas and up to 10L diesel engines. Click to get yours today!
Product Brand: Yesper
Product Currency: USD
Product Price: 129.99
Product In-Stock: InStock
4.85
Pros
- Great Value for the Money
- Easy to use
- Boosts most gas and diesel engines
- Compact and portable design
- Protective Case Included
- Cigarette Lighter Adapter
- Charge your smartphone and other gadgets
- 10 Protection Safety Layers including short circuit and reverse connection detection
- Boost mode available
- Embedded 3 Mode flashlight
Cons
- Short Jumper cables
- Long charge time
