(checked 2026-10-10)
The classic lead-acid jump box, with long 46-inch heavy cables and the stamina to crank for a long time or jump several vehicles. AutoGuide says it handles completely dead batteries that lithium units often can't. It weighs about 18 lb, loses its charge faster than lithium packs and needs monthly top-ups.
Top complaints
- Heavy and bulky
Gear Patrol lists it at 18 lb, much heavier than lithium jump starters. AutoGuide calls it large and heavy. Amazon owners are split on the weight.
- Loses charge faster and wears out sooner
AutoGuide says it loses charge much faster and doesn't last as long as lithium, and should be topped off every 30 days. Amazon's summary says some owners report it stops taking a charge or doesn't last a month. A Walmart reviewer says it failed within 7 months.
- Accessories missing from some third-party orders
A 2-star Walmart review from a third-party seller says the accessories in the instructions weren't included.
Source: Walmart reviews (lowest rated)
What owners love
- Lots of starting power
It's rated at 1,700 peak and 425 cranking amps, and AutoGuide says it can crank for long periods or jump multiple vehicles. Amazon owners say it has plenty of power for BMW and Mercedes vehicles.
- Long, heavy-duty cables and clamps
It has 46-inch 2-gauge leads with big, strong clamps (AutoGuide) and a voltmeter that shows the charge at the push of a button (Gear Patrol).
Source: AutoGuide, Gear Patrol - Long life for some owners
Amazon owners find it easier than jumper cables. Some say it stays charged a long time and lasts up to three years.
- You want to keep it in a glove box
- You won't top it off every month
- Weight matters
- Large vehicles, fleets and shop use
- Completely dead batteries
- Repeated long cranking
Scores (tap for why)
What experts say
- AutoGuide: Best for large vehicles: it can handle completely dead batteries that lithium units often can't. It's large and heavy, though, and loses its charge faster.
- Gear Patrol: Rated for all passenger and light commercial vehicles, with 46-inch cables and a heavy-duty case. It's bulkier and heavier than lithium, at 18 lb.