CTEK PRO 120, 12V, Professional ULTIMATE 120 AMP Complete Battery Support System, EU Plug

CTEK PRO 120 – 12V Professional Battery Support System (EU Plug)

The CTEK PRO 120 is a state-of-the-art, professional 12V battery support and charging system, delivering up to 120 amps of stable power. Built for modern diagnostic, service, and repair environments, it provides exceptional support for vehicle batteries, including lead-acid and 12V lithium (LiFePO₄) types. Its precision-controlled power supply mode makes it an ideal tool for high-demand automotive workshops.

Key Features

• 120A Power Support:
  Delivers consistent 120 amps to maintain system voltage during diagnostics, ECU flashing, and software updates.
• Selectable Output Voltage (Power Supply Mode):
  Adjustable from 12.6V to 14.8V in 0.1V increments to match manufacturer service specs.
• Ultra-Stable Output:
  Features low ripple and no flutter, ensuring protection for sensitive vehicle electronics.
• Fanless Cooling System:
  Innovative passive cooling prevents derating, keeps the unit silent, and maintains peak performance in hot or cold climates (down to -20°C / -4°F).
• Auto-Adaptive 8-Step Charging:
  Analyzes battery condition and adjusts current and voltage for safe, efficient charging. Compatible with all types of lead-acid batteries and 12V lithium (LiFePO₄, Li-Fe, LFP).
• Multilingual Display:
  Easy-to-read digital display with intuitive menu options in multiple languages.

Specifications

• Input Voltage: 220–240V AC
• Output Voltage: 12V (Selectable 12.6–14.8V in 0.1V steps in Power Supply Mode)
• Max Current: 120A
• Battery Types: 12V Lead-Acid (Wet, MF, EFB, AGM, GEL), 12V Lithium (LiFePO₄)
• Battery Capacity: 10–3600Ah
• Charging Steps: Fully automatic 8-step process
• Ripple: <4% (extremely low to protect sensitive electronics)
• Cooling: Fanless passive heat dissipation
• Temperature Range: -20°C to +50°C (-4°F to +122°F)
• Insulation Rating: IP40
• Plug Type: EU Plug
• Display: Backlit, multilingual LCD

Frequently Asked Questions (FAQ)

Q: What makes the PRO 120 ideal for workshop use?
A: Its high 120A output, stable voltage, and selectable service voltage range make it perfect for ECU flashing, diagnostics, and vehicle programming tasks.

Q: Can I use the PRO 120 on lithium batteries?
A: Yes, it supports 12V lithium batteries (LiFePO₄, Li-Fe, LFP), with intelligent charging profiles.

Q: Is the unit noisy?
A: No, the PRO 120 uses a fanless cooling system for silent operation, which also prevents derating and extends service life.

Q: Is it safe for sensitive electronics in modern vehicles?
A: Yes, its low ripple and no voltage flutter prevent any damage to delicate onboard electronics.

Q: Can it be used in cold environments?
A: Absolutely, it operates efficiently even in sub-zero temperatures (down to -20°C / -4°F).

• Compatible with all types of 12V battery, including lithium (LiFePO4) and suitable for batteries from 10ah-3600ah (15ah-1200ah LiFePO4)
• Easy to use with clear LCD display - safe spark free operation - reverse polarity protected - short circuit proof
• 12V/120A Output - Variable output in power supply Mode (12.6V-14.8V)
• Resonant converter technology for fast and efficient charging - 5M cables and heavy duty clamps
• Unique, patent applied for ‘adaptive Charging’ mode automatically detects battery size - Built in temperature compensation - rugged, impact resistant polycarbonate casing