OptiMate 2 DUO x 4 BANK BRONZE series: 5-step 12V / 12.8V 2A sealed battery maintainer x4

Each of the four independent banks delivers a 2 A constant current, employing a smart 5‑stage charging sequence—Recovery, Bulk, Absorption, Optimize, Maintenance—to adapt to each battery's type and condition. It can recover batteries from low-voltage states (starting as low as 4 V), then switch seamlessly into an automatic maintenance mode, reverting to charging if a load is detected.

Housed in a rugged, IP54-rated weatherproof enclosure, the unit is designed for harsh environments and operates reliably from –40 °C to +40 °C. Standby power consumption remains under 0.5 W. Multiple safety features include spark suppression, reverse-polarity protection, and automatic shut-off upon fault or disconnection.

Key Specifications

• Battery Types Supported: 12 V lead‑acid (flooded, AGM, GEL, EFB) and 12.8 V LiFePO₄ (4s)
  
• Output per Bank: 2 A constant charging current
  
• Voltage Range: 4 V–14.4 V, adjusting for battery chemistry
  
• Charging Program: Fully automatic 5‑step cycle (Recovery, Bulk, Absorption, Optimize, Maintenance)
  
• Low-Voltage Recovery: From 4 V
  
• Bank Configuration: Four independent outputs, each with its own maintenance cycle
  
• Standby Power Draw: < 0.5 W
  
• Operating Temperature: –40 °C to +40 °C
  
• Enclosure: Weatherproof (IP54), wall-mountable, robust build
  
• Input Voltage: 100–240 VAC, 50–60 Hz
  
• Safety: Spark suppression, reverse polarity protection, short-circuit shutoff, auto-restart under load
  
• Included Cables: Four 2 m DC leads with SAE connectors; clip and waterproof quick-connector options
  

The OptiMate 2 DUO × 4 BANK is the ultimate “connect-and-forget” solution for managing multiple battery systems simultaneously. Offering certified safety, intelligent charging, and solid-state reliability in extreme conditions, it ensures all batteries are fully recovered and maintained with minimal effort.

• Datasheet

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