TOPDON Tornado 4000 | Smart Battery Charger | 6V/12V | 4A | IP65 | Power Supply Mode 13.5V

A versatile all-in-one charger, the Tornado 4000 not only replenishes 6 V or 12 V batteries, but also acts as a maintainer, desulfator, and 13.5 V power supply up to 4 A. Engineered for cars, boats, motorcycles, lawn equipment, and backup systems, it combines advanced charging modes with rugged waterproof construction and cold-weather resilience. __Watch official video and in-depth review__ Key Features Smart 9‑step charging: auto-detects battery health and adapts charge stages for optimal performance Multi-mode output: 12V Normal, Lithium, Repair, Supply and 6V Normal at up to 4 A Supply mode: constant 13.5 V DC output powers onboard devices drawing up to 4 A Battery recovery: includes desulfation and acid-layer repair functions Supports up to 150 Ah batteries: works with Wet, Gel, AGM, EFB, MF, CAL and 12 V Lithium batteries IP65-rated weatherproof enclosure: UV-resistant and operable in cold environments (down to –4 °F / –20 °C) Safe 24/7 connection: reverse polarity, spark elimination, short-circuit, over-voltage, over-temp safeguards Intuitive LED interface: error alerts and memory functions for one-tap charging Compact and portable: lightweight (≈ 813 g), ideal for mobile use __ Technical Specifications Input voltage: 100–240 VAC (50–60 Hz) Max output power: 65 W Output currents: 4 A (12 V/6 V normal), 1 A maintenance, supply mode 13.5 V/4 A Battery capacity: up to 150 Ah Back current drain: < 5 mA Operating temp: –20 °C to 40 °C Storage temp: –20 °C to 75 °C Charger type: 9‑step smart algorithm Dimensions: 205×74×46 mm Weight: 0.81 kg Safety: IP65 rated, flame-resistant ABS housing __ Compatibility Uses 6 V or 12 V vehicle, marine, or deep-cycle batteries Supports all lead-acid types plus 12 V lithium batteries Ideal for routine charging, seasonal maintenance, and diagnostic power supply Not reliant on smartphone apps — built for standalone operation __ Functions & Features Automatic battery diagnosis and charge optimization Desulfation and acid-layer restoration support Battery power supply (13.5 V mode) for accessories and electronics LED-based status indicators and error alerts Memory recall of previous mode on reconnect Safe for continuous connection to battery __ Real‑World Use Cases Seasonal battery maintenance in automotive, boating, or RV Desulfation of under-maintained or old batteries Powering 12 V accessories during service (e.g. fans, inflators, ECU tools) Portable charging station for workshops or remote sites Battery care and charging consistency across vehicle fleets __ Installation & Use Plug charger into standard AC outlet (100–240 VAC) Attach clamps to battery terminals; reverse polarity protection prevents misuse Select desired charging or power mode Monitor LED status; charger will maintain battery automatically after full charge __ What’s in the Box 1 × TOPDON Tornado 4000 Smart Battery Charger 1 × Heavy-duty battery clamps 1 × Carry bag 1 × User Manual