SKU: 96665719444

OutBack FLEXmax FM80 Charge Controller MPPT 80A - FM80-150VDC

Sale price$309.60 Regular price$344.00
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Description

OutBack FLEXmax FM80 Charge Controller MPPT 80A - FM80-150VDCThe FLEXmax family of charge controllers is the industry leading innovation in Maximum Power Point Tracking (MPPT) charge controllers from OutBack Power. The innovative FLEXmax MPPT software algorithm is both continuous and active, increasing your photovoltaic array power yield up to 30% compared to non MPPT controllers. Thanks to active cooling and intelligent thermal management, the FLEXmax 80 can operate at its full 80 amp maximum current rating in

The FLEXmax family of charge controllers is the industry leading innovation in Maximum Power Point Tracking (MPPT) charge controllers from OutBack Power. The innovative FLEXmax MPPT software algorithm is both continuous and active, increasing your photovoltaic array power yield up to 30% compared to non-MPPT controllers. Thanks to active cooling and intelligent thermal management, the FLEXmax 80 can operate at its full 80 amp maximum current rating in ambient temperatures as high as 104°F (40°C). Included are revolutionary features first developed by OutBack Power, including support for a wide range of nominal battery voltages and the ability to step down a higher-voltage solar array to recharge a lower-voltage battery bank. A built-in, backlit 80 character display shows the current status and logged system performance data for the last 128 days at the touch of a button. The integrated OutBack Power network communications allow FLEXmax series charge controllers to be remotely programmed and monitored using the MATE family of system displays, providing unrivaled complete system integration.


Key Features & Benefits

80A Continuous MPPT Charging: Provides high-current charging for larger solar systems with active cooling that maintains full output up to 104°F (40°C).

Increases PV Output by up to 30%: Advanced continuous maximum power point tracking algorithm maximizes energy harvest from your solar array compared to non-MPPT controllers.

Wide Battery Voltage Range (12-60VDC): Supports 12V, 24V, 36V, 48V, or 60VDC battery banks from a single model, selectable via field programming at start-up.

Voltage Step-Down Capability: Step down current from any acceptable array voltage to any battery voltage (e.g., 72VDC array charging a 24VDC battery, or 60VDC array charging a 48VDC battery).

High Efficiency: Power conversion efficiency of 97.5% typical with peak efficiency of 98.44%, maximizing system performance and reducing energy loss.

150VDC PV Open Circuit Voltage Limit: Absolute maximum 150VDC (145VDC start-up and operating maximum), allowing for flexible array configurations.

Built-In Data Logging: Stores 128 days of operational data including amp-hours, kilowatt-hours, time in float, max PV voltage, max/min battery voltage, absorb time, and accumulated kWh of production.

Backlit LCD Display: 3.1-inch backlit LCD screen with 4 lines and 80 characters total shows current status and logged performance data at the touch of a button.

Programmable Auxiliary Control Output: 12VDC output signal that can be programmed for various control applications (maximum 0.2A).

Remote Monitoring and Control: Integrated OutBack Power network communications allow remote programming and monitoring using MATE family system displays (optional).

Battery Temperature Compensation: Automatic charging voltage adjustment with optional Remote Temperature Sensor (RTS).

Adjustable Charging Regulation: Bulk, absorption, float, silent, and equalization charging modes with programmable voltage setpoints.

ETL Listed: Certified to UL1741 and CSA C22.2 No. 1071 for North American installations.

Standard 5-Year Warranty: Extended 10-year warranty available.


Product Documents

Shipping Notes
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Exchange/Return Notes
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SKU: 96665719444

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Gerardo Borrero
Massapequa, US
★★★★★ 5
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Buen producto
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Reviewed in the United States on January 25, 2026
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Jeremy
Alexandria, US
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Good stuff and amazing how it's packaged
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Reviewed in the United States on December 7, 2025
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Jan
Pawtucket, US
★★★★★ 5
Great price
Fits perfectly and does the job
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Reviewed in the United States on September 5, 2025
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HumbleAmphibian
Los Angeles, US
★★★★★ 5
Works just as well as the official parts, for less
Color: Omni S1 Pro 17P
Been going through these for about two years now across multiple replacements and they perform just as well as the official Eufy parts. Main brush, side brushes, filters, dust bags, mop — all fit correctly and do the job without any issues. Honestly if you’ve got a Eufy Omni S1 Pro, just buy these instead. No reason to pay extra for the official kit when these hold up just as well over time. No complaints
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Reviewed in the United States on March 22, 2026
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Tytan Olmstead
Waukegan, US
★★★★★ 5
Amazing replacement parts
Color: Omni S1 Pro 17P
Works just like original parts, and fits my s1 perfectly. Mops are super easy to change and clean
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Reviewed in the United States on November 21, 2025

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