FlyAuto 2800A/1400A Heavy-Duty 12V/24V Jump Starter — 20Ah Lead-Acid, Dual USB

FlyAuto 2800A/1400A is a heavy-duty 12V/24V jump starter and lead-acid battery booster built to restart gasoline and diesel engines from compact cars to large trucks and marine vessels.

This compact, ready-to-use pack combines robust peak power with practical charging outputs so you can revive a dead starter battery and keep phones, tablets, and accessories powered while on the road. Designed for rough conditions, the 20Ah lead-acid cell, spark-proof clamps, and reverse polarity protection make it a practical tool for roadside emergencies, fleet maintenance, outdoor trips, and winter starts.

How much starting power does it deliver?

The FlyAuto unit delivers 2800A peak current and 1400A instant output, supplying the high cranking amps needed to start a wide range of engines quickly. Those ratings give extra headroom for larger diesel motors and repeatedly starting vehicles during long trips.

• 2800A peak pulse for heavy-start demands
• 1400A continuous instant output for reliable cranking
• Suitable for gasoline and diesel engines of various sizes

Will this jump starter work with my vehicle and other equipment?

Yes — the unit supports 12V and 24V systems and is compatible with cars, SUVs, vans, trucks, motorcycles, ATVs, boats, RVs, tractors, and light construction equipment. Its multi-output design also lets you charge mobile devices and small electronics while the main battery remains ready for emergency starts.

• 12V/24V selectable for a broad range of vehicles
• Dual USB 5V/2.1A ports and a DC 12V output for accessories
• Works with marine and off-road batteries when used per instructions

Is it safe and durable for tough conditions?

The FlyAuto booster uses a rugged 20Ah lead-acid battery chosen for stable performance in varying temperatures and heavy-duty cycles. Safety features include spark-proof clamps and reverse polarity protection to prevent damage from incorrect connections, making it suitable for users who need a mistake-resistant emergency power source.

• 20Ah lead-acid battery optimized for durability
• Spark-proof clamps and reverse polarity protection
• Sturdy housing built for roadside and workshop use

What accessories and charging options are included?

The kit ships complete with heavy-duty jumper clamps, an AC charger, a DC charging cable, and integrated USB/DC output ports so you can charge devices without additional adapters. For best results, the manufacturer recommends leaving the 12V clamps connected to the vehicle battery while charging the unit to ensure full conditioning and long-term reliability.

• Heavy-duty jumper clamps and AC adapter included
• DC charging cord plus dual USB ports for mobile devices
• Charging tip: connect clamps to vehicle battery during charge

Who is this for? Vehicle owners, fleet managers, RV and boat operators, off-road enthusiasts, and anyone who wants a dependable, high-capacity emergency starter and portable power source. If you need a robust lead-acid booster with straightforward safety features and multi-device charging, the FlyAuto 2800A/1400A pack is built to handle frequent use and demanding starts without complex setup.