SKU: 85176709390

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

Sale price$126.00 Regular price$140.00
Save 10%

Pay in installments of $35.00 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 30 - Oct 5

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 85176709390

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.5 ★★★★★
Based on 24 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
S
Verified Purchase
Stephanie Wilson
Waukegan, US
★★★★★ 5
Good RV Power Supply Cord
Size: 25-Foot, Style: 90° Locking End
It's an overall good value for the cord. I purchased so I'd have a spare in the rv and because my original is very short, I may need the extra length one day. I plugged it in and it works as intended, it appears to be good construction and quality materials. I've been caught in a situation before where my cord went bad (the inlet on the camper overheated and caused the plug in the melt and burn up, this could happen to anyone) it was after hours, so I couldnt run to a store and get one. Had to suffer through the night with no AC and wait until the next morning to go to an RV superstore and pay double what Amazon charges. If you take your rv out alot I highly recommend keeping a spare cord.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 16, 2020
D
Verified Purchase
DP Consultant
Phoenix, US
★★★★★ 5
Great product! I do not understand why anyone would make or buy any cord without a 90 degree plug-in for their RV.
Size: 25-Foot, Style: 90° Locking End
We had to replace the plug on our RV: The plug was destroyed by the stiff 50 amp cord that; came with our RV that put a lot of pressure on the plug-in on our RV causing it to arc and melt both the male and female where the cord was plugged into the RV. . The heavy duty 90: degree end has a soft flexible cable and greatly reduces the stress on the RV plug. I expect this cord will last much longer. Would recommend this cord to anyone. I do not understand why anyone would make or buy any cord without a 90 degree plug-in for their RV. Dealers may not have this item in stock.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 14, 2018
M
Verified Purchase
Matthew Sands
Lexington, US
★★★★★ 4
Good compromise
Size: 25-Foot, Style: 90° Locking End
I decided to go with this much cheaper version of the same yet higher quality cord from camping world. I really like the 90 degree connectors as these cords are heavy and I did not like the added stress on the RV power connector of the straight connectors. Also did not like the way the straight connector sticks out on camping would’s version so if I accidentally bumped into the cord it could easily be broken. The clamp ring on this one has large lugs making it much easier to tighten onto the RV threads. I really struggled with the ones that don’t have the large lugs. The easy to grip handles are also nice to have when removing from power. My one complaint, the cable jacketing is of lesser quality. You can literally feel the individual conductors inside the jacketing when handling. This makes me feel like this cord will not have the sturdiness to last over time and an insulation failure could be a dangerous situation. If I could get the connectors of this cord with the cable quality of the camping world version, I would pay for the quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2023
P
Verified Purchase
Paul Wadley
Port Orchard, US
★★★★★ 5
Exactly what was needed.
Size: 25-Foot, Style: 90° Locking End
I needed to replace the 50 amp power cord to my motor home and this works great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 27, 2024
R
Verified Purchase
R. Helzer
Boise, US
★★★★★ 5
Great generator cord
Size: 25-Foot, Style: 90° Locking End
I’ve had this cord for 5 years for use with my emergency generator, it doesn’t get used often, but when I’ve needed it it’s been flawless.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 7, 2024

recommand products