NOCO Boost GB40: 1000A Ultra Safe Jump Starter – 12V Lithium Battery Booster Pack, Portable Jump Box, Power Bank & Jumper Cables - for 6.0L Gas and 3.0L Diesel Engines

4.3 ★ (126,600 reviews)

$99.95Buy Now on Amazon

AI-generated sentiment score based on analysis of customer reviews. Positive (8–10), Mixed (4–7), Negative (1–3).

Positive — 8/10 ⓘ

Searched 1 time on AgreGtrAutomotive›Jump Starters & Battery Chargers

AI Summary

The NOCO Genius Boost jump starter receives overwhelmingly positive feedback for its reliable starting performance, ease of use, and compact portability. Customers praise its ability to jump-start a wide range of vehicles—from lawn mowers to large trucks—and appreciate its multi-function design as a power bank and flashlight. Battery longevity is the primary concern, with a minority of reviewers reporting charge retention issues over time.

Pros & Cons

Starts vehicles immediately across a wide range of types including trucks, boats, and lawn mowers
Extremely compact and lightweight design with included carrying case for easy storage
Much easier and safer to use than traditional jumper cables
Functions as a multi-tool: jump starter, USB power bank, and 7-mode flashlight
Holds charge for extended periods, enabling multiple jump starts on a single charge

Some units reported failing to hold a charge over time
Inadequate instructions included, making first-time use confusing for inexperienced users
One reviewer noted the clamp connector chipped when attaching to the battery terminal
May not work on severely depleted batteries with voltage too low to be detected
Initial charge before first use can take up to half a day