Povasee A40 5000A Car Jump Starter — 12V Portable Jump Box, 88.8Wh Power Bank & 3" LCD Display, LED Light

The Povasee A40 5000A portable jump starter is a compact 12V jump box that jump-starts gas engines and up to 10L diesel engines, doubles as an 88.8Wh power bank, and includes a bright LED light and a clear 3" display for on-the-spot diagnostics.

Flat batteries happen at the worst times; the Povasee A40 is built to get you moving again without a tow or another vehicle. This all-in-one kit combines a high-capacity starter capable of repeated boosts on a single charge, a pair of smart jumper cables, USB fast-charging outputs, and safety protections designed for roadside reliability. It’s engineered for drivers, motorcycle riders, boat owners, and anyone who needs dependable portable power.

How quickly will the Povasee A40 jump-start my vehicle?

The A40 delivers 5000 amps of peak current, designed to restart gasoline engines and diesel engines up to 10L. In most cases it cranks an engine in seconds, even when the vehicle battery voltage is very low; using the RST button helps recover systems below 9V.

• 5000A peak output for fast cranking
• Works on 12V cars, trucks, motorcycles, ATVs, boats, RVs, and lawn equipment
• RST function assists restarting at very low voltages
• Up to 60 jump starts per full charge under typical conditions

What safety features protect me and my vehicle during use?

Povasee built the A40 with multiple electronic safeguards to reduce risk during a jump start. The unit includes ten protection systems to prevent damage from common faults and can operate across a wide temperature range.

• Reverse polarity and reverse connection protection
• Short-circuit, over-current, over-charge, and over-discharge protection
• Spark resistance and over-heat protection for safer roadside use
• Operates between -22°F and 140°F for extreme-weather reliability

How does the A40 function as a power bank and emergency light?

Beyond jump-starting, the A40 stores 88.8Wh of energy and provides two USB outputs, including a QC3.0 port for faster device charging. Its integrated 600-lumen LED offers three modes—steady, strobe, and SOS—making it useful as an emergency beacon or workspace light.

• Two USB outputs including QC3.0 for rapid phone charging
• 600-lumen LED with flashlight, strobe, and SOS modes
• Functions as a portable battery for phones, tablets, and accessories
• LED display shows remaining power and operating status clearly

What does the 3" display show and why is it helpful?

The upgraded 3-inch LED display gives a clear readout of remaining battery capacity and real-time status indicators. That visual feedback removes guesswork so you can decide whether the unit has enough charge to complete another jump or charge your devices.

• Numeric remaining power percentage shown on the screen
• Status icons for charging, output, and fault conditions
• Quick visual check before attempting another jump start
• More informative than simple indicator lights

Who is this for: The Povasee A40 is aimed at drivers who want self-sufficiency and peace of mind — commuters, road-trippers, fleet owners, RV and boat operators, and anyone who keeps vehicles, ATVs, or lawn equipment. If you need a high-capacity jumper that also charges devices and offers a bright emergency light with built-in protections, the A40 is a practical, portable solution. The kit ships with smart jumper cables, a USB-A to C cable, a carry case, and a 36-month warranty; note that an AC charger is not included, so plan to charge the unit before first use.