NOCO Boost Plus GB40 vs Schumacher SL1672: Which to Buy

The Schumacher SL1672 is the better jump starter overall, rated 3.8 to 3.3. The Schumacher SL1672 leads on value and warranty. The NOCO Boost Plus GB40 wins on features. The Schumacher SL1672 costs $48.66 less ($51.29 vs $99.95).

Higher rated

Schumacher SL1672

#2 in Cars and SUVs3.8Full review

For drivers of four- and six-cylinder cars who want a cheap glove box pack with an override for dead batteries. V8 and diesel owners need a bigger model such as the SL1674.

Amazon $51.29

$51.29

NOCO Boost Plus GB40

#9 in Cars and SUVs3.3Full review

For drivers of four- and six-cylinder cars who want a proven, compact pack to keep in the car. Owners of bigger engines should step up to a GBX55 or larger.

Amazon $99.95

$99.95

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?

Choose the Schumacher SL1672 for value ($51.29 for its size vs $99.95 for its size) and warranty (2-year warranty vs 1-year warranty).
Choose the NOCO Boost Plus GB40 for features (manual override, rated to -22 °F, USB-C charging, IP65 vs manual override, USB-C charging).

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 weight	Schumacher SL1672	NOCO Boost Plus GB40
Overall rating	3.8/5	3.3/5
Value 40%	90 $51.29 for its size	45 $99.95 for its size
Features 35%	65 manual override, USB-C charging	87 manual override, rated to -22 °F, USB-C charging, IP65
Capacity 15%	9 23.7 Wh battery	10 24 Wh battery
Warranty 10%	50 2-year warranty	0 1-year warranty

Independent measurements

Schumacher SL1672

No independent test published yet.