Using & Charging Help
How to Use the WOLFBOX 4000A Jump Starter
How to use the WOLFBOX 4000A jump starter safely: connect the clamps, hit boost, start the engine, and remove the cables in the right order.
Pick a jump starter that fits your engine and your glovebox
Plain comparisons of NOCO, Gooloo, DeWalt and WOLFBOX jump starters, from compact lithium packs to heavy-duty units for trucks. Start with the top picks, your engine size or a brand you already know.
Latest guides
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How to charge a NOCO Boost GBX75: plug into USB-C Power Delivery, watch the charge lights, and know when 5 minutes of charging is enough for a jump.
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How does a car battery jump starter work? It sends a burst of 12V current from a lithium pack into a flat battery so the starter can crank the engine.
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Best Battery Jump Starter Pack for Diesel Engine
The best battery jump starter pack for diesel engine owners, compared on peak amps, diesel displacement and cold-weather limits, plus a clear top pick.
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AstroAI S8 car battery jump starter review: how its 3000A peak rating, boost mode and 8 protections suit small cars and light vans, plus who should pick a NOCO.
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NOCO vs Gooloo car jump starters: compare engine ratings, safety features and size to pick the booster that fits your car and how you use it.
Using & Charging HelpHow Do You Charge a Gooloo Jump Starter?
Here's how you charge a Gooloo jump starter: plug the included 100W car charger into its USB-C port, watch the screen, and unplug at full. Charge it before first use and every 3 months in storage.
- Best Jump Starters
Best Car Battery Jump Starter for the Money
The best car battery jump starter for the money is the BIUBLE 5000A. Compare 9 picks by engine size, safety features and extras to find your match.