The AceBeam A4 Smart Battery Charger is a versatile and intelligent charging solution designed to safely and efficiently charge a wide range of rechargeable batteries. Featuring four independent charging slots, automatic battery detection, and both AC and DC power support, this charger is ideal for home, workshop, or in-vehicle use.

With an easy-to-read LCD display, selectable charging currents, and advanced safety protections, the A4 charger delivers reliable performance for flashlight batteries, electronics, and everyday rechargeable cells.

Key Features

• Broad Battery Compatibility: Supports Li-ion, LiFePO4, Ni-MH, and Ni-Cd rechargeable batteries. Li-ion, Ni-MH, and Ni-Cd are automatically detected, while LiFePO4 mode is manually selectable.
• Four Independent Charging Slots: Each slot charges independently for optimal performance with mixed battery types and capacities.
• Selectable Charging Current: Choose between 500mA or 1000mA per slot to balance charging speed and battery lifespan.
• AC & DC Dual Power Input:
  • AC: 100–240V (50/60Hz) for worldwide use
  • DC: 12–24V for convenient car charging
• Clear LCD Display: Shows real-time battery voltage, charging current, charging time, and battery type for each slot.
• Automatic Safety Protection: Protection against short circuit, overcurrent, overcharging, and reverse polarity. Automatically stops charging after 12 hours.
• Energy-Saving Display Mode: Screen brightness reduces after 30 seconds of inactivity.
• Reverse Polarity Detection: Incorrect battery insertion triggers an “Err” alert to prevent damage.
• Certified Safety & Compliance: TÜV GS, FCC, CE, C-TICK, CB, and RoHS certified.

Technical Specifications

• Input (AC): 100–240V, 50/60Hz, 600mA (Max)
• Input (DC): 12–24V, 2000mA (Max)
• Output: 4.2V / 3.65V / 1.5V
• Charging Current: 500mA × 4 or 1000mA × 4
• Dimensions: 145 × 104 × 39.5 mm
• Weight: 260g

Ideal For

• Rechargeable flashlight batteries
• Camera, electronics, and hobby batteries
• Home, workshop, and in-car charging
• Users needing a safe, multi-chemistry smart charger