SMALL DEN Universal Multi-Voltage Lithium Fast Charger

 (36V, 48V, 52V, 60V, 72V | 2A / 3A / 5A Amperage Options | 10S, 13S, 14S, 16S, 20S Li-Ion Compatibility)

Power up your e-bikes, electric scooters, mopeds, and custom lithium battery builds with the SMALL DEN Multi-Voltage Smart Lithium-Ion Fast Charger. Purpose-built for 10S, 13S, 14S, 16S, and 20S Lithium-Ion battery packs, this versatile charger series offers precise voltage termination choices including 42V (36V nominal), 54.6V (48V nominal), 58.8V (52V nominal), 67.2V (60V nominal), and 84V (72V nominal).

Available in 2A, 3A, and 5A charging current configurations, SMALL DEN chargers utilize a smart CC-CV (Constant Current / Constant Voltage) charge algorithm backed by global safety certifications for efficient energy transfer.

⚠️ Important Battery Voltage & Safety Guidelines

CRITICAL VOLTAGE & BATTERY MATCHING SPECIFICATIONS:

• Precision Voltage Termination Options: Match your battery pack's exact series cell count 

  • 42.0V Cutoff: 36V Nominal Lithium-Ion 

  • 54.6V Cutoff: 48V Nominal Lithium-Ion

  • 58.8V Cutoff: $14\text{S}$ 52V Nominal Lithium-Ion ($14 \times 4.20\text{V}$)

  • 67.2V Cutoff: 60V Nominal Lithium-Ion

  • 84.0V Cutoff: 72V Nominal Lithium-Ion 

• Amperage Selection Guidelines (2A / 3A / 5A): Select 2A for standard maintenance charging, or 3A–5A for fast turnaround on higher-capacity packs. Always ensure your pack's BMS supports your chosen fast-charge current.

• Smart CC-CV Automatic Termination: Automatically transitions from constant current to constant voltage saturation mode, cutting power output upon reaching full saturation.

• Multi-Stage Circuit Protections: Built-in safeguards protect against Over-Voltage, Over-Current, Short-Circuit, and Reverse Polarity conditions.

🚀 Key High-Performance Features

• Smart CC-CV Fast Charge Logic: Delivers high efficiency during the constant-current stage, then safely tops off cells at exact peak-voltage cutoff levels.

• Universal World AC Input (100–240V AC): Auto-sensing AC line input operates seamlessly across international power grids ($50/60\text{Hz}$).

• Dual-Color LED Status Indicator: Clear operational state tracking—LED glows RED during active charging and turns GREEN upon full charge completion.

• Extensive Global Safety Certifications: Tested and certified compliant with international CE, RoHS, UL, FCC, KC, and PSE safety standards.

• Lightweight Compact Housing: Impact-resistant shell designed for convenient benchtop or backpack portability for on-the-go charging.

📊 Technical Specifications Matrix