The Schumacher SL1674 1500 Peak Amp 12V Lithium Jump Starter and Portable Power Pack helps shield you from the chaos and uncertainty of roadside emergencies. The SL1674 is a robust lifeline capable of reviving up to 8.0L gas and 4.5L diesel engines. Its 1500 peak amp engine start surges to the rescue, even on low-voltage batteries. With its jump start override mode, if a deeply discharged low-voltage battery isn’t detected by the unit, the SL1674 will let you manually jump start the battery, unlike many lithium jump starters on the market.
The SL1674 isn’t simply a jump starter; it’s also a portable power pack that will charge a range of devices. Boasting a cutting-edge 10W wireless charging pad, the SL1674 ensures your devices remain charged without the hassle of power cords. The 3A USB-A and USB-C ports deliver ultra-fast charging speeds, ensuring you stay seamlessly connected wherever you find yourself.
Stay prepared, stay protected, and stay empowered with the Schumacher SL1674 1500-Amp Jump Starter and Portable Power Pack, the ultimate guardian angel for your journeys on the road.
• 4-in-1 Device: Jump starter, patented 10W wireless charging pad, USB charger, LED flashlight
• Up to 35 jump starts on a single charge
• 3A USB-C input port fully charges the unit in 4-5 hours with an 18W charger (not included)
• Fast 10-watt patented wireless charging for smartphones, wearables, and other devices
• Pre-Boost technology delivers a breakthrough advantage by safely adding a pre-charge to deeply discharged batteries
• Pre-Heating technology warms batteries in extreme cold allowing ideal starting conditions
• Built-in, three-mode LED light with flashlight, SOS, and strobe settings
• Compact and lightweight, the SL1674 will fit in a glove box, center console, purse, or backpack
• Safety features include reverse polarity, short circuit, high temperature, low temperature, high voltage, timeout, and overload protection
• Water and dust-resistant with an IP65 ingress protection rating
• Non-sparking battery clamps
• Smart jump cable assembly with override button, fault LED, clamps reversed LED, and ready LED
• 10-gauge, 18″ booster cables
• Battery status LED indicators
• Four-cell lithium battery, 37 Wh
• Self-Reliant Safety: Jump-start your vehicle independently without needing assistance
• Includes Schumacher SL1674 1500 Peak Amp 12V Jump Starter and Portable Power Pack, smart jumper cable assembly, USB-A to USB-C charging cable, and user manual.
Specifications
Dimensions: 3.58″W x 1.69″D x 7.08″H
Weight: 1.74 lbs.
Input Voltage: 5V DC, 12V DC
Input Current: 3A
Output Voltage: 5V, 9V, 12V DC
Output Current: 5V @ 3A, 9V @ 2 A, 12V @ 1.5A, 1500 peak amps
Internal Battery Type: 4-cell lithium
Internal Battery Capacity: 37 Wh
IP Rating: IP65
Before You Order
Verify part number SL1674 exactly Match the listed product details to the part you are replacing before ordering. Compare dimensions, specifications and fitment information with your RV or component.
Frequently Asked Questions
What part number should I verify before ordering?
Verify SL1674 on your existing part, documentation or equipment label before ordering.
How should I confirm this part fits?
Compare the listed part number, dimensions, specifications and fitment details with your existing component. Do not rely on appearance alone.

















