Question 1

Which is better, NOCO Boost X GBX155 or Schumacher SL1397?

Accepted Answer

Based on our testing, the NOCO Boost X GBX155 scores higher overall at 9.1/10. The NOCO Boost X GBX155 scored 9.1/10 and the Schumacher SL1397 scored 8.9/10 in our Best Heavy-Duty Jump Starters 2026 evaluation.

Question 2

Is the NOCO Boost X GBX155 worth it over the Schumacher SL1397?

Accepted Answer

The NOCO Boost X GBX155 scores 9.1/10 while the Schumacher SL1397 scores 8.9/10. The NOCO Boost X GBX155 is our "Best Overall" pick in the Best Heavy-Duty Jump Starters 2026 category.

NOCO Boost X GBX155 vs Schumacher SL1397: Which to Buy?