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- Powerful 1000 Amp Starting Power: Jump-starts up to 8.0L gas and 6.0L diesel engines with ease.
- Advanced Battery Technology: Features a high-performance four-cell lithium battery for reliable operation in any condition.
- Pre-Boost and Pre-Heating Functions: Safely adds a pre-charge to deeply discharged batteries and warms batteries in extreme cold, ensuring you start your vehicle even in harsh weather.
Versatile Power Solutions:
- 2X Faster USB Charging: The 2.4A USB port provides rapid charging for your smartphone.
- 4X Faster USB Charging: The 3A USB port charges devices up to four times faster than standard USB ports.
- Built-In LED Light: Offers three modes—steady, flashing (SOS), and strobe—for versatile illumination in emergencies.
Convenience and Safety:
- Ultra-Fast Recharge: Recharges in just 2.5 to 4 hours via the 2A USB input.
- Clear LCD Display: Large, easy-to-read screen shows battery charge and essential information.
- Smart Clamps: Protect against reverse polarity, short circuits, battery exhaustion, high temperatures, and reverse charging.
Complete Package Includes:
- SL1639 Jump Starter
- Battery Clamps with Smart Cable
- USB Charging Cable
- Carrying Bag
- User Manual
The Schumacher SL1639 is your go-to solution for powerful jump-starting and emergency power needs. Reliable, compact, and packed with advanced features, it’s perfect for on-the-go use and ensures you’re never left stranded.
En español (ES): Schumacher Electric es una marca en la que puede confiar para obtener un rendimiento potente y tecnología avanzada. El arrancador y banco de energía con batería de litio Schumacher SL1639 de 1000A y 12V es un arrancador ligero y compacto que cabe fácilmente en la consola central o en la guantera. Con una batería de litio de cuatro celdas de alto rendimiento, la unidad Schumacher SL1639 ofrece 1000A de energía de arranque, aptos para arrancar motores de gasolina de hasta 8.0L y diésel de hasta 6.0L. Incluso puede hacerlos arrancar de manera confiable en condiciones difíciles con la avanzada tecnología de Schumacher. La tecnología de prearranque ofrece una revolucionaria ventaja al agregar una precarga de forma segura a baterías muy descargadas. La función de precalentamiento calienta las baterías en condiciones de frío extremo, lo que permite hacer arrancar un vehículo incluso a temperaturas extremadamente bajas. Además de arrancar, la unidad SL1639 actúa como fuente de alimentación USB de carga rápida. Dispone de dos puertos de salida USB. El puerto USB de 2.4 A carga dos veces más rápido y el puerto USB de 3 A carga cuatro veces más rápido que el USB estándar. La unidad SL1639 también incorpora una luz de área con tres modos de iluminación: fija, intermitente (SOS) y estroboscópica. Además, incluye una entrada USB de 2 A para recargas ultrarrápidas, una pantalla digital LCD extragrande y pinzas inteligentes y seguras con protección contra polaridad inversa, cortocircuito, baterías agotadas, alta temperatura y carga inversa.
Gina
Reviewed in the United States on March 8, 2025
Perfect. Small, works great and charges quickly, holds charge.
kathleen ann simpson
Reviewed in the United States on January 30, 2025
works great! already saved the day!
Devin Wiley
Reviewed in the United States on January 28, 2025
This is perfect if you have social anxiety and don't like asking people for jumps. It's easy to use, and despite it's small/convenient size, it is quite powerful and starts the vehicle immediately. You don't have to sit there and wait for your vehicle to charge. I used to have to jump my car off every time I shut it off, which meant using it approximately 2 or 3 times a day, and I wouldn't even have to charge the jump box for several days. This thing has been there for me during some tough times and I'm glad it exists.
M. Wyker
Reviewed in the United States on January 23, 2025
This is an amazing thing to own! I bought it @ a year ago and just used it recently to jump start a car. Very powerful. It failed to start the car the first 2-3 attempts. I had do the "turn all electrical things on" in order to start the dead battery. It worked beautifully. Started right up! It is small, handy and does the job. Every woman needs one of these!
Rodrigo Garcia Sandoval
Reviewed in Mexico on December 8, 2024
Llego más rapido qué lo programado y se ve que es de muy buena calidad
Rick
Reviewed in the United States on December 3, 2024
i bought it for my motorcycle, it will work on cars as well, but i bought it to carry on my adventure biking trips, it has already saved me, i was testing my heated gear to see how much amperage i could pull from the stator without killing my battery, and i took it just a but too far, with full heat, heated grips, heated seat, high beams, aux lights and add on fog lights. when i stopped to get gas, my battery had dropped to 11.5 which during cranking went to 10.4 which is not enough to get the computer to turn on.. hooked up the jumper and it ripped right over.. also i can use it as a mobile 12v power bank to heat my heated riding gear away from the bike... and has usb charging ports for other stuff, and the led light is handy as well.. it will be great insurance when im in the middle of nowhere on the bike.
Keith
Reviewed in the United States on June 3, 2023
The first 5 or six times I used the jump box. It worked perfectly, couldn't of asked for a better product. Infact the jump box was so powerful it even cold started my New Holland 5610 tractor. I was amazed...I woke up one Saturday morning around 7ish , wanting to get some much need yard work done,. Being early spring. As I prepare my Cub Cadet lawnmower for the task of cutting knee high weeds, every stick, branch, child's toy or tree that will be in sight of the Barefoot family yard.. for the fortunate none North Carolinas. that's all the beautiful yards will grows the early spring of North Carolina.As I turned the ignition key to start, nothing happened. I quickly realized, "yes " the battle dead. No problem right. I have a new amazingly powerful jump box. I quickly applied the +'red' to the positive termamal. Same process to the negative. I firmly grabbed my trusty jump box and pressed the center button to activate the device. The center button became stuck.??? I was confused, I taped it softly, repeated the taping over and over again. Same result. I tried a small flat screwdriver to pry on the sides and edges of the button. My attempts were in vain. I slowly gave into the fact my new amazingly powerful, impressive and perfect in my eyes, had failed me so soon. I now shamefully avoid friends and family for the fear of my failure jump box will be brought up in conversation. I am taking the disappointment day by day trying to void it from my memory of the power I once could yield freely and boastful. As time slowly drags on , the one light that keeps me going is the one year warranty I have shamefully applied for. I often look back on the days I could laugh at week or dead batteries. My one hope for redemption is a lone email that was sent to a manufacturer name I dare not say. I will continue to attempt being strong through the trial of my future on cranking trucks, lawnmower and even tractors again some day.
Ivan Gutierrez
Reviewed in Mexico on November 28, 2023
Me gustó mucho, estoy impresionado como enciende rápidamente una batería totalmente descargada.
Kyu
Reviewed in Mexico on April 1, 2023
Se descompuso al segundo mes y ya pasó el periodo de devolución (1 mes). No lo compren, la luz Led verde se queda flashando y no te dejará arrancar el vehículo.
Miguel Josue Sanchez Bahena
Reviewed in Mexico on December 23, 2022
Justo lo que necesitaba y ayudo un momentos para poder arrancar mi vehículo cuando la batería ya no estaba funcionando correctamente
PM
Reviewed in the United States on November 21, 2022
I purchased this when the battery was dying in my previous vehicle. I wanted a reliable source to jump-start my car until I could replace the battery. While there are similar devices available from other companies at lower prices, I chose this one because 1) I trust Schumacher and 2) this claimed enough capacity to start a much larger engine than I actually had. I was also fortunate that it appeared to be on sale when I bought it.I think my trust in Schumacher was well-placed. However, in at least one case, I was unable to start my engine with it. In fairness, the tow truck driver who came couldn't start it with his portable jumper unit either, and he had to finally use cables attached to his big diesel engine system to get my engine started. This was when I realized that my car battery was definitely closer to being dead than I had originally thought. Based on my experience, I would say that while it does work well, you need to have realistic expectations based on how much life is left in the vehicle's battery.Also worth mentioning: The directions wanted the negative cable attached to the vehicle, not the negative post of the battery. I think this is for safety, to help prevent the possibility of a spark igniting any gasses. However, it would not start the vehicle when I used it this way. When I attached the negative cable directly to the battery post, it did work.While I haven't used it for this yet, I like that it can recharge USB devices as well. This makes it practical for other uses -- just make sure that you recharge it so that it's ready for its primary purpose.
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