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⚡ Power up your ride and your lifestyle—never get stranded again!
The MAXTOOLS JSL240 is a portable 12V lithium jump starter delivering a peak 1500A output, ideal for diesel and petrol engines. Featuring a robust 9000mAh lithium battery, it supports quick recharging in 3 hours and includes dual USB ports for charging devices on the move. Weighing just 350 grams, it combines compact portability with smart LED lighting modes, making it an essential emergency tool for modern drivers.









| ASIN | B088TYQCKD |
| Amperage | 500 Amps |
| Battery Capacity | 9000 Milliamp Hours |
| Battery capacity | 9000 Milliamp Hours |
| Battery cell composition | Lithium |
| Best Sellers Rank | 145,492 in Automotive ( See Top 100 in Automotive ) 440 in Car Battery Jump Starters |
| Brand | MAXTOOLS |
| Brand Name | MAXTOOLS |
| Compatible with Vehicle Type | Passenger Car |
| Country Of Origin | China |
| Customer Reviews | 4.4 out of 5 stars 192 Reviews |
| Included Components | Starting and charging cables, user manual |
| Item Weight | 350 Grams |
| Item weight | 350 Grams |
| Manufacturer | MAXTOOLS |
| Manufacturer Part Number | JSL240 |
| Model Number | JSL240 |
| Peak Output Current | 1500 Amps |
| Unit Count | 1.0 count |
| Vehicle service type | Passenger Car |
| Voltage | 12 Volts |
| battery-cell-composition | Lithium |
M**E
Works as described.
I bought this as a next day item to start my SUV which had a flat battery. When this arrived I took it out of the box and thought that nothing this small was going to start my large car but I tried it anyway and it fired up first turn of the key. Time will tell if it is sturdy enough to last but at first use it seems to be a great product at a great price and small enough to be easily stored in my vehicle.
G**N
Great little Battery booster
The cold weather was affecting the battery on my 2L Citroen C* enough ti mean it would n't start in the morning. Got this battery booster and have been using it most mornings to boost the battery. Car has started straight off the bat every time I have used it and three weeks in only down to 50% charge. Small and potable easy to use - what's not to like !
B**4
Just what you need for that weekend car, that sits around idle for several weeks
Bought as I have a small 2 seater sportscar, that does not get the use it should and therefore the battery can go flat if not used for a couple of months. looked a many and decided on this one, not the cheapest, but it did offer me a 15 % off voucher. Ordered with prime and it arrived the next day. I followed the instructions to charge and then read through the instructions twice before using it, it had been sitting charged for a couple of weeks when I went to use my car this weekend, and surprise surprise the car would not start, so here is my chance to see how good the purchased is, was it worth the money ?? I popped the bonnet and connected the leads, pressed the boost button on the charger , got back in the car and turned the key, car started with no hassle. For me that is a success. I did notice that the booster pack now shows 75 % charge, which is what i would expect after a jump start , so will charge again before putting it away. Small, powerful and easy to use, very pleased with my purchase
A**R
Help when you need it.
Bought as a standby was able to assist a motorist with a flat battery.
T**T
Excellent
So I don’t normally write reviews However …having ordered this unsure of its ability ..not overly expensive and very small .. Wow …I’ve just used for first time ..what an amazing bit of kit … a defo must have to keep in car for an emergency .. 10/10
V**N
Not Strong Enough for the Purpose
Bit small for the purpose. So take care to get the strongest one.
M**S
IT WORKED AND SO EASY TO USE
My battery was playing up and would not start so I brought the jump starter and it let me down so I used my jump starter and it's so easy connect the leads to the unit put leads on OK green light come on turned the key my engine started just make sure you charge the unit up when you get it good value for money and so easy 5 star.
N**Y
AMAZING PRODUCT AND HIGHLY RECOMMENDED
This product arrived next day delivery and I immediately used it on my completely dead Vauxhall (it had been completely dead for about 7/8 months). I attached the jump leads, plugged it in, turned it on and pressed boost once and my car started straight away (which I wasn’t expecting to work at all). This jumpstarter pack can start my car 4-5 times from full battery.
W**E
Fácil uso y útil
Estupendo, fácil de utilizar, saca de un apuro en un momento, con una carga vale para varias veces. Muy bueno
G**E
Soddisfatto
L'ho utilizzato su suto con batteria scarica ed è partita al primo colpo. Viene consigliato di ricaricarlo ad ogni utilizzo, ma devo dire che dopo averlo utilizzato, in fase di ricarica campeggiava un solo led. Utile anche la lampada torcia e la possibilità di ricarica lo smartphone. Il manuale di istruzioni è molto chiaro.
M**2
Trés Bon
Il fonctionne, très bien, facile et rapide à recharger. Recommander
C**N
Muy buen producto
Lo recibi a 80% de carga. Lo cargué hasta 100% en unos 30 minutos. Mi bateria estaba muerta, y he podido arrancar mi moto (500cc) inmediatamente. 4 días más tarde, de nuevo sin bateria, y sin recargar el dispsotivo, he podido arrancar sin problema de nuevo. Y todavía me quedan casi 100% de carga. Muy contento. Además, es un formato muy compacto que cabe abajo de mi asiento.
A**É
Génial
Pour ce prix vous vous dépanner en 5 secondes. Bien laisser charger 24 heures avant premier emploi. Je ss bluffé et je recommande
Trustpilot
4 days ago
1 month ago