AstroAI S8 Ultra 12V 4000A Lithium Jump Starter
- 4000 peak amps For gas engines and diesel up to 12L
- 16000 mAh lithium ion Type-C power bank
- Smart jumper cables Three-mode LED flashlight
- 2.1 lb weight Measures 5.24 x 10.31 x 4.29 inches
- 12 volt systems Rugged red case
Updated 24 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
Lithium jump pack that handles large engines and tops up a phone in a pinch. Little is documented beyond the headline numbers, so clamp and coverage details are unknown.
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ASIN: B0D4D3B5GRModel: S8 Ultra
Overview
The unit stores charge in a lithium ion pack and delivers it through smart jumper cables to start a stalled engine. A USB-C output port and a three-setting torch add roadside convenience.
Its strengths are the generous battery size and the headline capacity for diesel engines, in a body that is light for the output. The data is sparse. Nothing is given on lead length, coverage term, USB wattage or safety features, and the vehicle type reads only as all of the above.
Who it's for
Drivers of trucks, SUVs and work vehicles who want a small emergency starter in the cab. Anyone who also needs a tire pump should choose a model with a compressor.
Pros and cons
- Large battery for a jump pack
- Handles big diesel engines
- Smart cables aid correct connection
- Charges devices on the go
- Warranty not listed
- Cable length not published
- Safety features not detailed
- Vehicle type text is vague
Performance notes
Starting ability depends on the battery's real discharge capability, which differs from the peak figure in the title. Smart cables check polarity before sending current. A bigger cell pack also means more charge left for your phone after a jump.
Specifications
| Brand | AstroAI |
|---|---|
| Model | S8 Ultra |
| Dimensions & fit | |
| Item Dimensions D X W X H | 5.24"D x 10.31"W x 4.29"H |
| Item Weight | 2.1 pounds |
| Capacity & performance | |
| Battery Capacity | 16000 milliamp_hours |
| Power & efficiency | |
| Amperage | 4000 A |
| Battery Type | Lithium Ion |
| Voltage | 12 volts |
| Compatibility & installation | |
| Compatible With Vehicle Type | All of the above |
| Included components | |
| Unit Count | 1 Count |
Frequently asked questions
What engines can this jump starter start?
Gas engines and diesel up to twelve liters, according to the title.
Can it charge devices?
Yes, via the USB-C connector.
Does it have a flashlight?
Yes, with three modes.
Is the warranty stated?
No warranty term is given.