WatangTech Solar Energy Manager A MPPT Charge Controller by WatangTech - Used condition

WatangTech Solar Energy Manager A MPPT Charge Controller — Open-Box, 13% Off

Name: WatangTech Solar Energy Manager A MPPT Charge Controller
Brand: WatangTech
SKU: awhd-us-b0fbfb45d7
Price: 16.95 USD
Availability: InStock

Brand: WatangTech

Condition: Used - Mint

$16⁹⁵

$19⁴⁰

-13% Save $2⁴⁵

Updated: 9 days ago

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Description

65W PD/QC Fast Charge: Type-C port supports PD/QC/FCP/PE/SFCP protocols (9V/12V input), charging efficiency up to 94%

Dynamic MPPT Tracking: Auto-optimizes solar input (5-24V) via dial switch, 77% solar conversion efficiency

Dual Battery Expansion: Connect 18650 batteries via 3.5mm terminal or PH2.0-4P port, supports simultaneous charge/discharge

Smart Power Management: 5V/3.1A regulated output (USB-A + terminal) for powering Arduino/STM32 projects

6-Layer Protection: Overcharge/over-discharge (4.2V1% cutoff, 3.0V1% protection) + reverse polarity alarm + low-voltage lock

Versatile Solar Input Range: Accepts 5-24V solar panel input with adjustable dial switch for optimal power harvesting across different solar configurations

Real-Time Status Monitoring: Built-in LED indicators display charging status, battery level, and system operation for easy monitoring and troubleshooting

Low-Voltage Recovery Function: One-click activation button enables system restart after low-voltage shutdown, ensuring continuous operation for Raspberry Pi and IoT applications

Upgrade your renewable energy projects with Solar Energy Manager A! This advanced power module integrates MPPT solar charging (5-24V input) and 65W PD/QC fast charge via Type-C, delivering 5V/3.1A stable output through USB-A or terminal. Features dual battery interfaces (18650/packs), real-time status LEDs, and one-click activation for low-voltage recovery. Perfect for Raspberry Pi portable stations, IoT sensors, and Arduino-based solar systems.

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Product Details

SKU:: awhd-us-b0fbfb45d7
Model:: WT-Solar Energy Manager A
Country:: US
ASIN:: B0FBFB45D7

Shopping Smarter

Common questions about buying open-box and refurbished.

Why buy refurbished or open-box?

Refurbished and open-box products offer the same performance as new at a fraction of the price. You're already saving $2 on this listing. They've been inspected, tested, and are ready to use — the only difference is the price tag. Buying refurbished also reduces electronic waste, extending product life cycles and keeping functional devices out of landfills.

What's the difference between open-box and refurbished?

Open-box products are customer returns that have been inspected and confirmed functional. They may show little to no use — often the item was returned simply because the buyer changed their mind. Refurbished products have been professionally repaired or restored by technicians, tested to meet or exceed manufacturer specifications, and sometimes come with a warranty. Both are a smart alternative to buying new.

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Is it safe to buy refurbished?

Yes. Products listed on OpenBoxFox come from established retailers like Amazon, Reebelo, and Dyson — not unknown third-party sellers. Each retailer has buyer protection policies, return windows, and in some cases warranties. You get the price advantage of used goods with the purchase security of a known retailer.