(checked 2026-10-10)Small sample (117 ratings).
CNN tested it and found its total output between the NOCO GB40 and the Gooloo GT4000S, from a brand that doesn't wildly exaggerate its specs. It often gave overheating warnings in boost mode, and its clamps are small and hard to grip.
Top complaints
- Overheats in boost mode
CNN says it frequently gave overheating warnings when pushed to its limits in boost mode.
Source: CNN Underscored - Small, hard-to-grip clamps
CNN found the clamps smaller and harder to grip than some rivals', though sturdy.
Source: CNN Underscored - Less guidance than the Gooloo
CNN says the Gooloo, which is otherwise similar in design, does more to give instructions.
Source: CNN Underscored
What owners love
- Honest ratings, solid output
CNN appreciated that its specs weren't egregiously overblown. Its output landed between the NOCO and the Gooloo.
Source: CNN Underscored - Multiple jumps per charge
Amazon owners report several car jumps on a single charge and find it reliable on everything from cars to ATVs.
- Sturdy build
CNN says the clamps feel sturdy and well built. Amazon owners consider it well worth the money.
- You want the clearest instructions
- You'll use boost mode often
- You want big, easy clamps
- Buyers wary of inflated amp ratings
- Cars and small SUVs
- A combined jump starter and power bank
Scores (tap for why)
What experts say
- CNN Underscored: Also tested (published 2026-04-30): 'you could do worse.' Output fell between the NOCO and the Gooloo, but it gave frequent overheating warnings in boost mode and has small clamps.