LIFMOCER GS300 3000A 12V Jump Starter for up to 10.0L Gas / 8.0L Diesel — Compact with LCD, USB & Boost

The LIFMOCER GS300 is a compact 3000A 12V jump starter and power bank that can revive vehicles up to 10.0L gas or 8.0L diesel engines and supply USB charging on the go.

Whether you face a drained starter battery at home, on a roadside, or during outdoor adventures, the GS300 combines a high-output jump pack with a clear LCD readout, flashlight, and multiple safety layers in a travel-ready case. It’s built to deliver a fast crank, revive deeply discharged batteries, and keep small electronics charged while you wait.

How quickly will the GS300 restart my vehicle?

The GS300 delivers a high peak current to turn over large engines fast; most compatible vehicles will start within 1–2 seconds of connection. Its boost mode is engineered to engage when battery voltage is extremely low, improving success on deeply discharged batteries.

• 3000A peak current for fast engine turnover
• Compatible with up to 10.0L gasoline and 8.0L diesel 12V engines
• Force start/BOOST mode for batteries below typical operating voltage
• Heavy-duty cables and spark-proof clamps for safe contact

What safety features protect me and my vehicle?

LIFMOCER designed the GS300 with ten intelligent protections to reduce user error and electrical risks. The unit’s electronics and clamps are engineered to prevent reverse polarity, short circuits, and high-temperature scenarios while providing visual feedback on the LCD.

• Reverse polarity and spark-proof protection to prevent clamp mistakes
• Overcurrent, overvoltage, and overload safeguards for electrical stability
• Overcharge and overdischarge protections to prolong pack life
• High-temperature monitoring and short-circuit prevention for safe operation

Can the GS300 also charge phones and help at night?

Yes. The GS300 doubles as a portable power bank with USB quick charge ports for phones, tablets, and other small devices. An integrated LED lamp offers steady, SOS, and strobe modes to aid roadside visibility, signal for help, or illuminate a dark workspace.

• USB quick-charge outputs for smartphones and tablets
• Clear LCD shows remaining battery percentage at a glance
• Three-mode LED flashlight for illumination and emergency signaling
• Compact size and included EVA case for convenient storage and transport

How durable and travel-ready is the GS300?

The GS300 is designed for repeated use in demanding conditions, using a Grade-A control chip and rugged cabling to ensure consistent performance. It ships with a compact EVA storage case to keep the unit and accessories organized, plus a two-year warranty and customer support for confidence on long trips.

• Premium Grade-A chip for stable charging and long-term reliability
• Smart heavy-duty jumper cables and reinforced clamps
• Compact footprint: 7.60 × 3.61 × 2.10 in for easy glovebox or trunk storage
• Includes USB cable, jumper cables, EVA case, and user manual; wall charger not included

Who is this for? Drivers who want a compact, professional-grade jump starter that handles large engines and deep discharges will appreciate the GS300. It’s well suited for motorists with trucks, SUVs, boats, or motorcycles who value fast starts, clear battery status, built-in USB charging, and multiple safety layers — ideal for commuters, road-trippers, fleet operators, and outdoor enthusiasts who need reliable emergency starting and portable power.