









⚡ Power up your ride & your life—jumpstart confidence anywhere, anytime!
The Schumacher Electric SL1639 is a compact 1000-amp lithium-ion jump starter designed for cars, trucks, motorcycles, and SUVs. It features dual fast-charging USB ports, a multi-mode LED emergency light, and advanced safety protections, making it an essential portable power pack for modern drivers seeking reliable, on-the-go vehicle and device charging.
































| ASIN | B09Z3W6DZV |
| Amperage | 1000 Amps |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #17,016 in Automotive ( See Top 100 in Automotive ) #152 in Jump Starters |
| Brand | Schumacher Electric |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,571) |
| Date First Available | April 28, 2022 |
| Exterior | Machined |
| Item Weight | 2.09 pounds |
| Item model number | SL1639 |
| Manufacturer | Schumacher Electric |
| Manufacturer Part Number | SL1639 |
| Model | Schumacher Electric Lithium Jump Starter and Portable Power Pack SL1639 3-in-1 |
| Peak Output Current | 1000 Amps |
| Product Dimensions | 1.53"D x 3.31"W x 14.18"H |
| Specification Met | UL |
| UPC | 026666816397 |
B**N
Sweet small size amp for bike
Worked great and nice and small for my bike under seat.
M**Y
WORKS WORKS WORKS nice case too
Fantastic product. Nice carrying case. Wirked great starting my bosses dead bus. I told him where I got it. He's getting one for esch of his 5 busses to put in yhe storage area below the drivers seat and recharging them on the first of the month slong with their other vehicle maintenance services.
R**K
great jumper
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.
B**D
Store and Save a Tow
Huge help to jump my car in two situations. Ease to use, easier to store. Highly recommend for its value, quality, and ease of use.
N**Y
Not to hot, not too cold. Just right.
This has lasted for years and only given me a little trouble over all that time. It's conveniently sized enough to keep handy and works great for the most part. I have had some issues with it keeping a charge over long time periods but if you top it up, it does fine. It also failed to start a battery recently but the battery was completely drained so I don't hold it against the little fella. Even better, this was the only jumpstarter (of 3!) that could even get the battery to draw charge and attempt to turn over. I've had it for several years now, I wish the newer models were this good. Much better value for the money than bigger models.
Y**N
Packs a punch!
Schumacher is a brand you can trust. I've purchased Schumacher year's ago and the charger was very dependable. When it did finally breathe it's last breathe I purchased the jumper box which I was very happy with and last but not least this little miracle of a gadget. It kinda makes one laugh because you wouldn't believe how much power it has but it works every time. I just love this little Schumacher jump start gadget. I'll definitely keep coming back to Schumacher.
P**R
It's not reliable.
I bought this to keep in my 87 diesel mercedes. I had to use it one time and it worked fine. I take it out every few months to charge it, and I went to use it and it wouldn't work. Had to tow my car home. I tried charging it and the thermometer icon keeps flashing. Flashlight doesn't work either. It won't charge it's stuck at 79% (but wouldn't jump my car). I wasted good money on this, and it cost me a tow too. I do not recommend relying on this. I have aanother Schumacher jump pack in my truck and I'm probably going to replace that one too. If it doesn't work when you need it to, what's the point?
C**S
Easy to use
I bought this on sale. Anything under $40 is a good deal. Used it when my battery went bad. I was able to jumpstart my suv and get home. So much better than finding someone to help using standard jumper cables.
W**A
Ok
L**Z
en lo que yo lo he usado me ayudo en cargar mi celular cuando se va la luz,y yo lo traego en mi carro esperando no usarlo.
L**Z
Al ser portátil, es una excelente opción para traerlo siempre en tu carro para cualquier emergencia.
R**L
Llego más rapido qué lo programado y se ve que es de muy buena calidad
I**Z
Me gustó mucho, estoy impresionado como enciende rápidamente una batería totalmente descargada.
Trustpilot
2 months ago
1 week ago