High-Efficiency Solar Charger, 12V Lead-Acid Battery, 5A, MPPT, LCD Display

SKU:: 69
Manufacturer:: Tokyo Devices
Model Number:: IW1608-AX
EAN:: 4560457400113
Released on:: Jul 2012
Category:: Battery Chargers (MPPT)
Series:: IW16X8

Connection Diagram

IW1608-AX is a control module that uses MPPT control to charge solar panel power into a 12V lead-acid battery with high efficiency. Equipped with an LCD screen that displays current, voltage, charging status, etc. in an easy-to-understand manner.

Features

Long-Running Bestseller: Released in 2012, the IW1608 has been a long-standing bestseller with over 5 years of continuous operation experience. It’s a long-term, mass-production-ready product.
LCD Display: Equipped with an LCD display, it provides real-time power generation status directly from the module.
MPPT Algorithm: The IW1608 employs a "Maximum Power Point Tracking Algorithm (MPPT)" for charging control. The optimized charging circuit and algorithm maximize the solar panel's performance.
Versatile Power Supply: Suitable as an embedded power supply in areas without a stable power source. It can be used widely for communication devices, measuring instruments, lights, pumps, fans, and more.
Low Self-Consumption: Minimal self-consumption current ensures that the battery power is barely drained, even at night or on cloudy days.

Specifications for Tokyo Devices IW1608-AX

Supported Panels: Open-circuit voltage 16-28V, output below 150W
Charging Voltage: (Auto-switches based on battery state)
- Bulk/Absorb charging: 14.3V (±0.1V)
- Floating charging: 13.8V (±0.1V)
Rated Output: 70W
Maximum Output: 82.5W
Supported Batteries: 12V lead-acid batteries, both sealed and open types, AGM-compatible
Power Conversion Efficiency: Up to 94.3%
(Measurement conditions: PV=16.0V, Battery=14.3V, Current=5.0A)
Switching Frequency: 32kHz
Connection Terminals: AWG26-14 (0.12sq-2sq), M2.6 Phillips screw
Board Dimensions: W90mm x H70mm x D30mm
Weight: Approx. 65g
Reverse Connection Protection: Fuse mounted on the board
Current Limiting Function
Overvoltage Protection Function
Temperature Anomaly Shutdown Function
Night Detection and Standby Mode
Reverse Current Prevention (Diode-less)
Self-Consumption Current: 1mA (during nighttime standby)

For information about appropriate battery capacity and solar panel size, check out the Solar Power System Simulator.

Precautions

The battery and solar panels are not included. Please obtain them separately.
This product has no casing. For outdoor use or embedded installation, ensure suitable protection through casing or moisture-proof processing.
During maximum output, the board temperature can rise approximately 50°C above the ambient temperature. Please handle with care.

Related Models

IW1618-GX: 10A model with double the current capacity.
IW1608-AL: Economical version without an LCD.

Search Keywords

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