AstroAI S8 Air vs Clore Jump-N-Carry JNC305

Last updated: October 30, 2026

The AstroAI S8 Air is the better jump starter overall, rated 3.7 to 3.5. The AstroAI S8 Air leads on warranty and value. The Clore Jump-N-Carry JNC305 wins on features. The AstroAI S8 Air costs $12.25 less ($59.99 vs $72.24).

AstroAI S8 Air vs Clore Jump-N-Carry JNC305

Prices were last checked October 30, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.

Which should you buy?

Scores side by side

Each factor is scored 0-100 against the same fixed reference points for every cars and suvs jump starter; a clear win is highlighted. How we rank explains each one.

Factor weightAstroAI S8 AirClore Jump-N-Carry JNC305
Overall rating3.7/53.5/5
Value 40%82 $59.99 for its size71 $72.24 for its size
Features 35%50 rated to -4 °F64 manual override, rated to 0 °F, USB-C charging
Capacity 15%42 37 Wh battery42 37 Wh battery
Warranty 10%50 2-year warranty0 1-year warranty

Specifications

AstroAI S8 AirClore Jump-N-Carry JNC305
Starting
Rated engines6 L gas, 3 L diesel6 L gas, 3 L diesel
Peak amps (maker)3,000 A1,000 A
Voltage12 V12 V
Manual override-Yes
Lowest operating temperature-4 °F0 °F
Battery and charging
ChemistryLithium-ionLithium-ion
Capacity37 Wh37 Wh
Capacity (mAh)10,000 mAh-
USB-C input-10 W
USB outputs-USB-A 12 W
Build
FlashlightYesYes
Air compressorYesNo
Weight2.4 lb2.2 lb
Warranty2 years1 year
Released2025-112024-08

All jump starter comparisons →