SKU: 69677062306

Genasun 8A MPPT Custom Voltage Boost (Lithium) Solar Charge Controller

Sale price$142.77 Regular price$158.63
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Description

Genasun 8A MPPT Custom Voltage Boost (Lithium) Solar Charge ControllerGenasun GVB 8 Custom Voltage Boost MPPT Solar Charge Controller for Lithium Batteries Advanced MPPT Boost Technology for Off Grid and Mobile Energy Systems The Genasun GVB 8 Custom Voltage Boost MPPT Solar Charge Controller is engineered for applications where the solar panel voltage is lower than the battery voltage. Unlike conventional controllers that step down voltage, this unit efficiently boosts power from a lower voltage panel to charge a

Genasun GVB-8 Custom Voltage Boost MPPT Solar Charge Controller for Lithium Batteries

Advanced MPPT Boost Technology for Off-Grid and Mobile Energy Systems

The Genasun GVB-8 Custom Voltage Boost MPPT Solar Charge Controller is engineered for applications where the solar panel voltage is lower than the battery voltage. Unlike conventional controllers that step down voltage, this unit efficiently boosts power from a lower-voltage panel to charge a higher-voltage lithium battery pack. This capability allows the use of larger, more cost-effective panels, reducing overall system expense while maintaining high performance.

Designed and manufactured in the USA, the GVB-8 is built for mission-critical reliability. It has been proven in the world’s most demanding environments—from years at sea to harsh Antarctic winters and high-altitude solar-powered aircraft. Each controller undergoes comprehensive electrical testing to ensure dependable operation when it matters most.

High-Speed MPPT: 15 Hz Tracking for Dynamic Conditions

Not all MPPT controllers are equal. Many use a slow sweep-and-sleep method, scanning the voltage range every 30 to 60 seconds. This approach is adequate for stationary panels under clear skies but falls short in mobile or variable conditions. The Genasun GVB-8 features a 15 Hz MPPT tracking speed, adapting to changing light 15 times per second. This ensures maximum energy harvest during cloud transients, on moving vehicles, and in partial shading—capturing power that slower controllers miss.

Precision Charging for Lithium Batteries

The GVB-8 employs a computer-controlled constant-current/constant-voltage (CC/CV) charge profile tailored for lithium batteries. This precise regulation optimises charge cycles, extends battery lifespan, and maximises usable capacity. The custom voltage output is factory-set to your specified level, ensuring a perfect match for your lithium battery bank.

Key Features

  • Boost topology enables charging from panels with voltage below the battery
  • 8 A rated panel input current supports panels up to 150 W (with ~155 mm cells)
  • 15 Hz MPPT tracking for superior performance in dynamic light
  • 95–99% typical electrical efficiency minimises energy loss
  • 99%+ tracking efficiency ensures near-perfect power point accuracy
  • Wide 5 V minimum panel voltage for flexible panel selection
  • Low night consumption (as low as 5 mA) preserves battery charge
  • Compact, lightweight design (14 x 6.5 x 3.5 cm) for easy integration
  • IP40 environmental protection suitable for protected installations
  • Made in the USA with full electrical testing for reliability

Durable and Reliable Construction

Housed in a robust black enclosure with integrated mounting flanges, the GVB-8 is designed for secure installation in a wide range of applications. Multicolour LED indicators provide clear status feedback for Standby, Charging, Full, and Error states, simplifying system monitoring and troubleshooting. Screw terminals accept up to 4 mm² (approx. 12 AWG) wiring for secure, low-resistance connections.

Versatile Applications

The Genasun GVB-8 is ideal for off-grid and mobile systems where panel voltage constraints exist. Typical uses include:

  • Charging 12 V lithium batteries from lower-voltage solar panels
  • Marine and RV installations with limited panel space
  • Remote monitoring and telemetry systems
  • Portable solar generators and field equipment
  • Custom voltage requirements for specialised lithium packs

With its advanced boost MPPT technology and proven durability, the Genasun GVB-8 delivers efficient, reliable charging in the most challenging conditions. Whether you’re powering a remote sensor, a marine electronics suite, or a mobile workstation, this controller ensures your lithium batteries receive optimal charge from every available watt of solar energy.

Power Your System with Confidence

Choose the Genasun GVB-8 Custom Voltage Boost MPPT Solar Charge Controller for your next project and experience the difference that high-speed tracking and precision charging make. Order today to keep your lithium batteries performing at their best, wherever your installation takes you.

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: 69677062306

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4.5 ★★★★★
Based on 22 reviews
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C
Verified Purchase
Cindy Hutchinson
Pawtucket, US
★★★★★ 5
Need suggestions
Size: Large, Style: Ultra Tug
This was a great toy but my 9 month old puppy (65 lbs ). Chewed it up within 3 hours. Any suggestions? I am really trying to find a tugging toy that can with stand him. He is a significant chewer.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
K
Verified Purchase
KC
Bozeman, US
★★★★★ 3
Super fun concept, but material needs improving.
Size: Small, Style: Ultra Tug
The concept - amazing. The materials used? - not so much. Our senior Chorgi is not even a super chewer,yet he managed to get a tiny piece chewed off of the ball in under 10 minutes. Also, the handle is not flexible enough. It's like a hard, tough, sharp and thick nylon material. You can see how they were trying to make it more durable,but there jas got to be an alternative material. This nylon is sharp on their gums and roof if mouth. For now I am watching our dog carefully with it, because he loves how it bounces funny so its more fun to chase. Fur babies are pur children. You would not leave a 2 ur old alone to play with a toy, would you? I'm just not sure i'd buy another. I bought 3 at once. Returning 2 .
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 11, 2026
N
Verified Purchase
NurseUrsy
San Leandro, US
★★★★★ 5
Excellent tug toy!
Size: Large Triple, Size: Large Triple
My dog had this set of 3 interlocking rings for 7 years and they finally broke. I was so happy to be able to get a replacement set that is just as durable as the original! Just ask our Gretzky to, “get your rings” and she knows exactly what to find. She can tug these for an hour and not lose interest. She loves them. They are the perfect size for her to grab comfortably and for her human playmate to hold onto the other ring in opposition. Gretzky is half Boxer, about 85lbs and all muscle. For her first set to withstand years of tugging without breaking was surprising but they’re made well and as long as you don’t allow your dog to just sit and chew them, they’ll give you years of tugging playtime!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2026
E
Verified Purchase
Emily S.
Lowell, US
★★★★★ 5
Simple! Easy! All We Needed!!
Size: Large Triple
These were the only durable rubber like rings that were both the same material; not too thick (not heavy) so my 1 year old Pit, Dixie, was able to latch on to one ring while we grabbed the third ring, leaving enough space so she won't accidentally bite us when grabbing the rings to play. They were also the only ones that came interlocked and cannot be taken apart. She is also a big chewer, which means she can gnaw on these without tearing them apart. The rubber is thick enough to play, but thin enough to twist and flex with her. So far, they are sturdy. She was immediately so excited! Simple and easy!
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Reviewed in the United States on May 8, 2026
C
Verified Purchase
Cindy
Port Orchard, US
★★★★★ 5
Great durable dog toy!!
Size: Large Triple
We have a medium-sized dog (45 lb mixed Aussie/Hound) who is a pretty aggressive chewer. He also loves playing tug-of-war with his canine and human siblings using these rings. This is easily his favorite toy. We bought one a little over a year ago that he plays with daily. If finally broke this December just in time to buy a replacement for Christmas! The prior one finally broke when the middle ring came apart at one of the thinner rubber points. He still plays with the intact outer rings as well as his new toy. I wanted to dock this 1/2 star for a few reasons: 1) it is not completely invincible, although I would argue a toy that lasts over a year with pretty constant play for an $11 price tag is a great value. 2) the one we received is not yellow/black. It is blue/green. I was personally thrilled it was blue/green because it ended up being an exact replacement of the one we had previously. However the description does not say "colors vary" and it was hard for me to tell when ordering if I was ordering the correct replacement toy. A clearer description would be appreciated. 3) This is a great toy for one dog, but our other dobbie/cattle dog mix has no interest in them. So not all dogs will love this toy (obviously). 4.5 stars isn't an option so I'm giving this 5 stars because it's just about as close to a perfect dog toy as one can buy (at least for our dog).
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Reviewed in the United States on December 31, 2016

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