TOPDON 3000A Jump Starter JS3000 — 24,000mAh Power Bank, BOOST Mode for up to 9.0L Gas / 7.0L Diesel

The TOPDON JS3000 is a heavy‑duty 3000A portable jump starter built to restart 12V vehicles up to 9.0L gas or 7.0L diesel engines and double as a 24,000mAh power bank.

Compact yet rugged, the JS3000 combines high peak current, smart safety circuitry, and multiport charging in a single unit designed for trucks, boats, work vehicles and large personal vehicles. It includes reinforced copper clamps, a bright integrated flashlight, and a BOOST function to revive deeply discharged batteries quickly. The housing is IP54-rated for splash resistance and the kit ships with a carry case and charging accessories for immediate use.

How quickly will the JS3000 start a dead battery?

The JS3000 delivers peak current that enables near-instant cranking on compatible 12V systems. In practical terms most starts happen within seconds after proper clamp connection; the BOOST mode shortens the process for severely depleted batteries.

• 3000A peak output for high-capacity engines
• Supports up to 9.0L gasoline or 7.0L diesel engines
• BOOST button for reviving deeply discharged batteries
• Up to 45 starts per full charge under typical conditions

What safety features prevent misuse or damage?

TOPDON built the JS3000 with multiple protections so both novices and professionals can use it confidently. The unit’s clamp design, 100% copper conductors and intelligent protection systems reduce risk from reverse polarity, short circuits, and overcurrent events.

• 10 intelligent protection technologies include reverse-polarity and overcurrent protection
• Heavy-duty copper clamps and robust cables minimize connection resistance
• IP54-rated fireproof shell for splash and dust resistance
• Visual indicators and guided BOOST procedure for safe operation

Can the JS3000 power other devices besides a car?

Yes — the JS3000 functions as a multiport power bank for phones, tablets, laptops and small electronics. It offers fast-charging ports and a high-capacity battery to keep devices running during travel or work.

• 24,000mAh internal battery holds reserve power for devices
• USB‑C PD 45W bi-directional port charges laptops and can recharge the unit quickly
• Two QC 3.0 USB ports and a 16.8V DC output for varied equipment
• 400-lumen flashlight with SOS mode and up to 30 hours runtime

What accessories and warranty come with the JS3000?

The JS3000 arrives as a ready-to-use kit with practical extras for storage and charging. TOPDON also provides standard and optional extended service coverage to protect your purchase and keep technical support available.

• Included: heavy-duty battery clamps, QC18W adapter, USB-C cable, user manual
• EVA carrying case keeps components organized and mobile
• One-year quality assurance plus 30-day refund window
• Optional TOPDON Care+ for extended replacement and lifetime support

Who is this for? The TOPDON JS3000 is aimed at drivers of large-capacity vehicles, fleet and marine operators, outdoors enthusiasts, and technicians who need reliable high-current starts plus versatile charging on the go. If you regularly work with trucks, boats, ATVs, or heavy equipment — or simply want a robust emergency starter and power bank in one — the JS3000 offers a balance of power, safety and portability.