Schumacher SL1672
#2 in Cars and SUVsFull 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
The Schumacher SL1672 is the better jump starter overall, rated 3.8 to 3.4. The Schumacher SL1672 leads on value and warranty. The NOCO Boost GB20 wins on features. The Schumacher SL1672 costs $28.66 less ($51.29 vs $79.95).
NOCO Boost GB20
#7 in Cars and SUVsFull review
For motorcycles, ATVs, lawn tractors and small four-cylinder cars where a compact, cheap pack is enough. Anything with a V6 or bigger needs a GB40 or larger.
Amazon $79.95$79.95
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 $79.95 for its size) and warranty (2-year warranty vs 1-year warranty).
- Choose the NOCO Boost GB20 for features (manual override, rated to -4 °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 GB20 |
|---|---|---|
| Overall rating | 3.8/5 | 3.4/5 |
| Value 40% | 90 $51.29 for its size | 64 $79.95 for its size |
| Features 35% | 65 manual override, USB-C charging | 77 manual override, rated to -4 °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 |
Specifications
| Schumacher SL1672 | NOCO Boost GB20 | |
|---|---|---|
| Starting | ||
| Rated engines | 6 L gas, 3 L diesel | 4 L gas |
| Peak amps (maker) | 1,000 A | 500 A |
| Voltage | 12 V | 12 V |
| Manual override | Yes | Yes |
| Lowest operating temperature | - | -4 °F |
| Battery and charging | ||
| Chemistry | Lithium-ion | Lithium-ion |
| Capacity | 23.7 Wh | 24 Wh |
| USB-C input | 15 W | 10.5 W |
| Recharge time | 3 hours | 3 hours |
| USB outputs | USB-C 3 A, USB-A 3 A, 10 W wireless pad | USB 10.5 W |
| Build | ||
| Flashlight | Yes | Yes |
| Air compressor | No | No |
| Water resistance | - | IP65 |
| Dimensions | 6.98 x 3.43 x 1.42 in | 7.72 x 3.16 x 1.71 in |
| Weight | 1.6 lb | 2.1 lb |
| Warranty | 2 years | 1 year |
| Released | 2024-09 | 2016-12 |