ZYX-Q520 Portable Jump Starter – 20000mAh, 2000A Peak, Power Bank & LED Light

Never Get Stranded Again.

The ZYX-Q520 is a 20000mAh portable jump starter that delivers 1000A starting current and 2000A peak current — enough to start gasoline engines up to 5.0L and diesel engines up to 3.0L up to 40 times on a single charge. Grade A+ cells, intelligent protection, and reverse connection safeguards make it one of the safest jump starters on the market. It also doubles as a dual USB power bank and features a built-in high-lumen flashlight with SOS/strobe mode for roadside emergencies.

Key Features

• 2000A peak / 1000A starting current — starts gas engines up to 5.0L, diesel up to 3.0L
• 20000mAh capacity — up to 40 jump starts per charge
• Grade A+ cells — safe, explosion-resistant, stable voltage and current
• Intelligent protection system — reverse connection, overcharge, short circuit, and over-current protection
• Dual USB output — 5V/2.4A × 2 for charging phones and devices
• Built-in LED flashlight — high-lumen with flash and SOS distress mode
• Operating temp: -20°C to 60°C

Specifications

• Capacity: 20000mAh | Starting current: 1000A | Peak current: 2000A
• Input: 5V/2.4A | Output: 5V/2.4A × 2 (USB) + 12V jump start
• Compatible: Gasoline ≤5.0L | Diesel ≤3.0L

Important Usage Tips

• Red clip = positive (+), Black clip = negative (−) — never reverse the polarity
• Wait at least 30 seconds between start attempts — do not crank continuously
• Remove clips within 30 seconds after the engine starts
• On first use: turn on the flashlight to discharge residual power, then charge fully for 4+ hours before jump starting
• For long-term storage: charge to 50%+ and recharge every 2–3 months to maintain battery health