SKU: 85176709390

Genasun 8A MPPT 24V Voltage Boost (28.4V Lithium) Solar Charge Controller

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Description

Genasun 8A MPPT 24V Voltage Boost (28.4V Lithium) Solar Charge ControllerGenasun GVB 8 Li 28. 4V: 8A MPPT Boost Solar Charge Controller for 24V Lithium Batteries Advanced MPPT Boost Technology for Efficient 24V Lithium Charging from Lower Voltage Panels The Genasun GVB 8 Li 28. 4V is a high performance MPPT boost solar charge controller engineered to charge 24V lithium battery banks from solar panels with a lower voltage output. Unlike conventional controllers that step down voltage, this unit employs a sophisticated boost

Genasun GVB-8-Li-28.4V: 8A MPPT Boost Solar Charge Controller for 24V Lithium Batteries

Advanced MPPT Boost Technology for Efficient 24V Lithium Charging from Lower Voltage Panels

The Genasun GVB-8-Li-28.4V is a high-performance MPPT boost solar charge controller engineered to charge 24V lithium battery banks from solar panels with a lower voltage output. Unlike conventional controllers that step down voltage, this unit employs a sophisticated boost topology to elevate panel voltage, enabling the use of larger, more cost-effective panels. This approach reduces overall system cost while maximising energy harvest in space-constrained installations such as caravans, marine vessels, and remote off-grid sites.

Designed for mission-critical reliability, Genasun controllers are trusted in the world's most demanding environments—from Antarctic research stations to high-altitude solar aircraft. Each unit is manufactured in the USA and undergoes comprehensive electrical testing to ensure dependable operation when it matters most.

High-Speed MPPT: 15Hz Tracking for Dynamic Conditions

Standard MPPT controllers often use a slow "sweep and sleep" algorithm, scanning the panel's power curve every 30–60 seconds. This is adequate for stationary panels under clear skies but falls short in mobile or variable weather scenarios. The Genasun GVB-8 features a 15Hz MPPT tracking speed, adjusting to changing irradiance 15 times per second. This rapid response captures more energy during cloud transients, shading, and when panels are mounted on moving vehicles, delivering up to 99%+ tracking efficiency.

Optimised for 24V Lithium Systems

Pre-configured for 24V lithium iron phosphate (LiFePO4) batteries with a constant voltage of 28.4V, this controller implements a precise CC-CV (Constant Current – Constant Voltage) charge profile. The advanced computer-controlled algorithm ensures safe, full charges that extend battery lifespan and maintain capacity. With an electrical efficiency of 96–98% typical, minimal energy is lost during conversion, maximising the power delivered to your battery.

Built for Harsh Environments

The GVB-8 is fully encapsulated in a rugged, waterproof housing, making it suitable for marine, coastal, and high-humidity installations. It operates reliably across a wide temperature range and includes essential protections against over-current, over-temperature, and reverse polarity. The fanless, potted design eliminates moving parts that can fail, ensuring silent, maintenance-free operation for years.

  • Boost MPPT topology charges 24V batteries from panels with Vmp as low as 5V
  • 15Hz high-speed tracking adapts to changing light in milliseconds
  • Waterproof, potted enclosure resists moisture, salt spray, and vibration
  • Pre-set for 24V lithium with 28.4V CV and CC-CV charging profile
  • 96–98% typical efficiency reduces thermal stress and energy loss
  • Low night consumption of just 6mA preserves battery charge
  • Wide panel compatibility supports up to 350W with 8A input current

Cost-Effective System Design

By allowing a single large panel to charge a higher voltage battery, the boost controller eliminates the need for multiple smaller panels wired in series. Larger panels typically have a lower cost per watt, so this approach can significantly reduce your total system expenditure while simplifying wiring and mounting. The GVB-8 accepts a maximum panel power of 350W (with ~155mm cells) and an absolute maximum Voc of 63V, providing flexibility in panel selection.

Applications

Ideal for caravan solar systems, marine battery charging, remote telemetry, and any off-grid installation where panel voltage is lower than battery voltage. Its compact, lightweight design and waterproof construction make it particularly suited to mobile and exposed environments.

Upgrade Your Off-Grid Power System

Equip your installation with the Genasun GVB-8-Li-28.4V MPPT boost controller for reliable, efficient charging in the toughest conditions. Order today and experience the difference that high-speed MPPT and rugged engineering can make in your energy system.

Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 85176709390

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Roland S.
Fort Morgan, US
★★★★★ 5
Absolutely the best robot vacuum. And I know!
Color: Black
I researched and read many of the reviews on the M330 Pro. I can't see how anybody would give it less than 5 stars. I have owned 5 different robot vacs. One of which I just returned because of its poor third party app which was useless. The Lefant company knows robotics. While this is my first from them, I won't hesitate to buy from them again. It is quiet, quick, and the Lefant App which is THEIR own app and not some cheap third party, is the best. Easy to understand, and navigate. The design of the vacuum is very well thought out. The M330 Pro is a brand new model (go look at their website) and the technology has improved from even a year ago. The aid of both 2G and 5G networks is something you just don't find from anyone else. For the price, this is an absolute MUST BUY. And to make the vacuum even better, the customer service from Lefant is the best.
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Reviewed in the United States on March 17, 2026
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Zac
Belleville, US
★★★★★ 5
Eufy 11S Max Replacement Parts Work Well
Size: 20 PACK
For the 11S Max, the parts fit great. Changing out the parts is easy, and the parts are durable. I like that this kit has a new filter for everytime you change out the rotating brushes. Changing out the parts make the eufy vacuum cleaner function better everytime. I can’t tell a difference in the noise level when changing out the parts. Overall, thus is totally worth the money to keep the Eufy running in its best shape.
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Reviewed in the United States on January 24, 2026
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Marilyn
West Palm Beach, US
★★★★★ 5
Great buy
Size: 20 PACK
This is a great buy to replace filters etc on my robot
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Reviewed in the United States on May 20, 2026
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arock
Cuba, US
★★★★★ 5
Perfect for my Eufy
Size: 20 PACK
Nice to change out parts regularly. Easy to use. Fit & work perfectly
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Reviewed in the United States on November 17, 2025
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seabreena
Houston, US
★★★★★ 4
Great replacement for TCL robot vacuum
Size: 20 PACK
Love that everything fits. Only issue are the little brushes they don’t fit the vacuum I have :(
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Reviewed in the United States on June 17, 2024

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