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The TENKER 4000A is a 12V lithium jump box rated to start up to 7.2L gas and 5.5L diesel engines, so it covers cars, trucks, SUVs, boats, mowers and snowmobiles. It adds USB ports for charging phones and tablets, an LCD status display and a built-in LED light for night work. Ten safety protections include spark-proof clamps and reverse-polarity protection. It is a big-capacity unit in a compact body; rivals at the same rating often match the peak amps but fewer combine the LCD readout and USB charging in one case. Owners rate it 4.6 out of 5 across 95 ratings.
In stockSold by JJTIEJIANG StoreReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
Owners give it 4.6 out of 5 from 95 ratings and mostly praise its starting power on larger engines and the convenience of USB charging and the LCD readout. Complaints are few and tend to center on keeping it charged and on the clamps.
This is a 4000A portable jump starter for 12V vehicles. It can start gas engines up to 7.2L and diesel engines up to 5.5L. It works with cars, trucks, SUVs, motorcycles, boats, lawnmowers and snowmobiles.
It has multiple USB ports for charging electronic devices. A built-in LED light provides light for emergencies or repairs at night. An LCD display shows the unit's status.
The unit includes 10 safety technologies, including spark-proof and reverse-polarity protection. It is compact and lightweight.
