Noco Boost X GBX45 vs AstroAI S8 Jump Starter

The Noco Boost X GBX45 is the better-built unit and the one to buy if you want fast USB-C recharging, a usable power bank and a flashlight that works in the dark. The AstroAI S8 claims a higher peak number and a slightly larger battery, but its 6.0L gas and 3.0L diesel ratings are lower than the Noco's 6.5L and 4.0L, and it charges in about 4.5 hours instead of under an hour. Owners of the Noco line consistently praise the clamps and the safety circuitry; the AstroAI is the budget pick that does the basic job on smaller engines.

• Choose the Noco Boost X GBX45 if you drive a larger gas or diesel engine, want a 60W USB-C power bank, or need a jump start after only a few minutes of charging.
• Choose the AstroAI S8 if you mainly jump motorcycles, cars and lawnmowers and want a simple, compact pack with two USB-A ports for phones.