KickAss Flexicharge 12V 50A ACDC Smart Battery Charger For Lead Acid, AGM & Lithium Batteries + Integrated Bluetooth

Powerful, smart, and built for serious setups, the KickAss Flexicharge 50A ACDC Battery Charger delivers rapid charging for lithium, AGM, and lead-acid batteries. Ideal for fast-charging high-capacity batteries like the KickAss Ultra-X 230Ah range, it offers adjustable output, Bluetooth control, and intelligent multi-stage protection for safe, efficient power anywhere.

The KickAss Flexicharge 12V 50A ACDC Smart Battery Charger is built for serious off-grid, touring, and workshop setups. Engineered for fast charging high-capacity batteries like the KickAss Ultra-X range, it delivers powerful performance, intelligent control, and flexibility across multiple battery types – keeping your system running reliably on the road, on-site, or on shore power.

Features & benefits

• Smart 50A Battery Charger
  Delivers up to 50A of charging power, specially designed for fast-charging high-capacity batteries like the KickAss Ultra-X range. With the right setup, it can recharge a 200Ah lithium battery in as little as four hours.
• Adjustable Charge Current
  Select between 50A, 32A, 16A, or 4A output to match your setup perfectly.
• Bluetooth Monitoring & Control
  Connect via Bluetooth to the mobile app for complete remote access. Adjust charge settings, select battery type, and track voltage, current, and system status in real time – from the convenience of your smartphone.
• Multi-Chemistry Charging
  Compatible with Lead Acid, AGM, Gel, and Lithium batteries, the unit automatically applies the correct charge profile for each type – ensuring optimal performance, safety, and battery life across any setup.
• Integrated Vehicle Diagnostics – Alternator and Starter Battery Health Check
  Quickly assess your vehicle’s charging and starting systems with built-in alternator and starter battery tests. The charger checks output voltage, cranking performance, and battery capacity to help you spot issues before they leave you stranded.
• Dynamic Battery Maintenance
  Once your battery is fully charged, the charger automatically monitors battery voltage and delivers a top-up only when needed – preventing overcharging and keeping your system ready to go. Ideal for vehicles or setups permanently connected to shore power.
• Intelligent Multi-Stage Charging
  Uses an advanced 9-stage charge and maintenance algorithm to charge efficiently and protect battery health. Throughout the process, the charger monitors voltage and current to ensure safe operation, automatically applying maintenance or recovery charging when needed for maximum battery life.
• Intelligent – and Quiet – Cooling Fans
  Temperature-controlled fans adjust their speed based on internal heat and charging load, keeping the system cool without unnecessary noise. This smart design reduces dust intake and ensures reliable, quiet operation wherever you install it.
• Plug & Play Connection
  Features an easy Anderson-style DC output and standard IEC AC input for quick setup. Use the included Anderson-to-ring terminal lead for fixed installs, or add optional alligator clips for portable or workshop use – giving you flexible connection options for any charging scenario.
• Lithium Recovery Mode
  Safely revives lithium batteries that have entered low-voltage protection mode. The charger applies a controlled recovery current to restore normal operation and get your battery charging again without risk of damage.
• Starter Battery Replacement Mode
  Acts as a 12V DC power source when replacing your starter battery – preventing ECU resets, data loss, or interruptions to other electronics.
• On Board LCD
  The built-in LCD screen shows real-time charging data including voltage, current, and charge stage, while a clear status LED keeps you informed of charging progress and system operation at a glance.
• Charge Guard Protection
  Built with advanced safety features including reverse polarity, short circuit, over-voltage, over-temperature, and over-current protection – keeping both your charger and batteries safe.
• AGM Reconditioning Mode
  Revives tired AGM batteries with a controlled over-voltage cycle that breaks down sulphate buildup on the plates, helping to restore lost capacity and extend overall battery life.
• What’s Included:
  1 x 50A Smart ACDC Charger 1 x AC Input Cable 1 x Anderson to Ring Terminal Cable – 80cm 1 x Pair Alligator Clips, Compatible with Anderson & Ring Terminal Cable

Technical specifications

Manuals & support

• KickAss Flexicharge 12V 50A ACDC Smart Battery Charger For Lead Acid, AGM & Lithium Batteries + Integrated Bluetooth — Support Page
• KickAss Flexicharge 12V 50A ACDC Smart Battery Charger For Lead Acid, AGM & Lithium Batteries + Integrated Bluetooth — User Manual