OptiMate Solar DUO TM522-D4: OFF-GRID Series Battery Charger & Maintainer

OptiMate Solar DUO TM522-D4: OFF-GRID Series Battery Charger & Maintainer

40W Solar 12V Lead-Acid and Lithium Battery Charger & Maintainer

R 2 408.00
5.0(2)

rated at Takealot · checked 3 days ago

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Average
R 2 408.00
Lowest seen
R 2 408.00
Highest seen
R 2 408.00
Last change
R 0.00
First indexed
20 Sep 2026
Retailer
Takealot

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Description

This system is designed for 12V lead-acid and 12.8V lithium batteries commonly used in vehicles and various craft.

The OptiMate Solar DUO features an intelligent charge controller that adjusts the charging process based on the battery's type and current state.

Key Benefits:

  • Extended battery life and enhanced power delivery.
  • Fully automated multi-step charging safely reaches full capacity without supervision.
  • Unique pulse action can recover flat batteries from as low as 4V.
  • 'Smart charge' optimization chooses between pulse or continuous charging depending on sunlight intensity.

Monitoring and Maintenance:

  • Battery status is updated every 3 seconds, with specific readiness indicators for STD, high-performance AGM, and lithium LFP types.
  • Intelligent maintenance determines whether to continue the cycle or optimize based on overnight charge retention.
  • Monitor mode consumes less than 0.5mA.

Installation and Dimensions:

  • Total span between panel and battery is 315cm; extendable via OptiMate O-03, O-13, or O-23 cables.
  • External dimensions (with brackets): 42cm (W) x 67cm (H) x 3.5cm (D).

Technical Specifications:

  • Solar Panel: 40W (max) weatherproof polycrystalline unit with an aluminum frame.
  • Charge Controller: Delivers 3.33A average current (3-5A pulse); suitable for indoor or outdoor use (down to -20 C).
  • Compatibility: Supports 12V STD, AGM, and GEL batteries (2-240Ah) and 12.8V/13.2V Lithium LFP.

Safety: Features spark suppression and no risk of overcharging. Automatically shuts down upon short-circuit or disconnection.

What's in the box
1 x OptiMate 40W Solar Panel with 4 x Integrated Corner Mounts and Charge Cable
1 x OptiMate Solar TM522-D Smart Charge Controller, SAE Input and 180cm Output Cable with SAE Connector
1 x O-04 Crocodile Clips
1 x O-11 Fused Battery Lead
1 x Instruction Manual

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