Best Jump Starters

Pros

• +2,000A rating covers gas engines up to 8.0L and diesels up to 6.0L — V8 pickups, SUVs, boats
• +UltraSafe clamps: spark-proof, reverse-polarity protected, with manual override for fully dead batteries
• +400-lumen flashlight with SOS and strobe; 12V output runs a tire inflator

Cons

• −About 5 lb and the size of a hardcover book — a bigger glovebox footprint than the GB40
• −Micro-USB charging on most stock; full recharge takes hours from a wall brick

Pros

• +4,250A rating covers gas up to 10.0L and diesel up to 8.0L — heavy-duty pickups, RVs, farm equipment
• +65W USB-C in and out: recharges the pack in a few hours and fast-charges laptops and phones
• +500-lumen flashlight; rubberized IP65 housing with the same UltraSafe clamp protection as the rest of the line

Cons

• −~7.5 lb — this lives under a seat or in a toolbox, not a glovebox
• −Priced like a budget battery charger and a GB40 combined

Pros

• +1,000A rating starts gas engines up to 6.0L and diesels up to 3.0L
• +Compact and 2.4 lb — fits a glovebox or door pocket
• +UltraSafe spark-proof, reverse-polarity-protected clamps with manual override

Cons

• −Marginal for V8s and any engine at deep sub-zero temperatures — size up if that's you
• −Micro-USB charging input on most units; slow recharge

Pros

• +Reliably starts V6 and V8 gas engines; GOOLOO rates it for gas up to 10.0L and diesel up to 8.0L (treat as generous)
• +Large 26,800mAh capacity — a real power bank with USB-C PD and USB-A outputs
• +Smart clamps with reverse-polarity, short-circuit, over-current, and over-temperature protection

Cons

• −'4,000A' isn't comparable to NOCO's ratings — it's a strong 2,000A-class performer in practice
• −Clamps and housing feel less robust than NOCO's; more owner reports of failure after 2–3 years

Pros

• +1,700 peak / 425 cranking amps of sustained lead-acid output — excellent on cold, hard-starting engines
• +46-inch #2 AWG clamp leads reach any battery, including trucks and boats
• +Built-in automatic charger — leave it plugged in and it's always ready

Cons

• −18 lb and bulky — a garage or truck-bed tool, not something you carry in the cabin
• −Needs recharging every 90 days or so (lead-acid self-discharges)