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The GOOLOO GT4000S is a portable lithium jump starter rated at 4000A peak, which Gooloo says starts 12.0L gas and 10.0L diesel engines. It bundles an F3 electric air duster, so one kit covers both a dead battery and cleaning jobs. 100W fast charging cuts the time to top up the pack or a phone. It is built for truck, SUV and RV owners who want a single rugged roadside unit, and it competes with high-amp jump starters from NOCO and other brands on peak current and extras rather than on name recognition.
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Lowest price we've seen: $99.99 on Nov 15 at Amazon. Tracked across 1 store since Nov 15.
The GOOLOO GT4000S is a portable car jump starter with a 4000A peak current. It is built to jump-start gas engines up to 12.0L and diesel engines up to 10.0L, including trucks, SUVs, RVs and heavy-duty equipment. The product name also lists an F3 electric air duster.
It has a 100W USB-C port for two-way fast charging, so it can charge itself and also power devices such as laptops. An 18W USB-A port charges smartphones and tablets, and a 15V/10A DC output powers larger devices. It recharges from empty to 100% in 1.2 hours, and it is ready for another start about 5 minutes after recharging begins.
Ten safety protections cover reverse polarity, over-charge, over-voltage, short circuit, extreme temperature, over-current, over-load and reverse charge. It also has spark-proof technology and software that monitors power flow and battery status. A built-in LED light has three modes: spotlight, steady light and SOS strobe.
