NOCO Boost Plus GB40 Jump Starter vs AstroAI S8 Jump Starter
Both are compact lithium jump starters rated for 6.0L gas and 3.0L diesel, so engine coverage is a tie. The AstroAI S8 claims higher peak current and more battery capacity, but the NOCO GB40 has the longer track record: 4.6 stars from nearly 2,000 ratings, IP65 sealing, and UltraSafe spark-proof clamps that owners and reviewers consistently call foolproof. Buy the GB40 for proven safety electronics and a glovebox-friendly shape; buy the S8 if you want more rated current and dual USB ports for the same class of engine.
- Choose the NOCO Boost Plus GB40 if you want the better-known unit with spark-proof, reverse-polarity protection and a sealed IP65 body.
- Choose the AstroAI S8 if you want higher rated peak amps, dual USB outputs and a larger battery in the same engine class.
Prices
- NOCO Boost Plus GB40 Jump Starter: $99.95 at Best Buy (checked today)
- AstroAI S8 Jump Starter: $42.19 at Amazon (checked today)
- Difference: the AstroAI S8 Jump Starter is $57.76 cheaper than the NOCO Boost Plus GB40 Jump Starter today

