43% under what the other stores charge
Compared across 8 stores. Prices are checked against each store and labelled with when.
It checks today's price at every store, compares the alternatives and answers in about a minute.
The Stanley Fatmax is a portable jump starter with a built-in air compressor and USB charging ports, meant to live in a trunk for dead batteries, low tires and phone top-ups. Its 1200-amp peak rating is aimed at car and light-truck engines, and the all-in-one format saves carrying a separate inflator. Against compact lithium jump packs it is bulkier and heavier, but it adds a tire inflator and USB power that most pocket-sized boosters lack. Owners of the Fatmax line generally rate the jump function and compressor gauge as the useful parts and complain about clamps, cables and the pressure gauge's accuracy.
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Lowest price we've seen: $63.99 on Nov 4 at McCoy's Building Supply. Tracked across 9 stores since Nov 4.
Owners of the Fatmax jump starter line value having a booster and inflator in one box and say it starts cars and light trucks reliably when charged. Complaints center on the pressure gauge's accuracy, the clamps and cables, and the need to keep the internal battery topped up.
