SKU: 57362336240

Genasun 8A MPPT 24V Voltage Boost (Lead-Acid) - Waterproof Solar Charge Controller

Sale price$119.25 Regular price$132.50
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Description

Genasun 8A MPPT 24V Voltage Boost (Lead-Acid) - Waterproof Solar Charge ControllerGenasun GVB 8 Pb 24V WP: Advanced MPPT Boost Solar Charge Controller for 24V Lead Acid Systems Efficient Voltage Boosting for Off Grid, Marine, and Industrial Applications The Genasun GVB 8 Pb 24V WP is a specialised MPPT boost solar charge controller engineered to charge 24V lead acid batteries from lower voltage solar panels. Unlike standard controllers that require panel voltage to exceed battery voltage, this units unique boost topology steps up

Genasun GVB-8-Pb-24V-WP: Advanced MPPT Boost Solar Charge Controller for 24V Lead-Acid Systems

Efficient Voltage Boosting for Off-Grid, Marine, and Industrial Applications

The Genasun GVB-8-Pb-24V-WP is a specialised MPPT boost solar charge controller engineered to charge 24V lead-acid batteries from lower-voltage solar panels. Unlike standard controllers that require panel voltage to exceed battery voltage, this unit’s unique boost topology steps up input voltage, enabling the use of compact, cost-effective solar arrays. With 96-98% typical electrical efficiency and a peak of 99%, it maximises energy harvest in space-constrained installations.

Designed for demanding environments, the controller is fully encapsulated in a proprietary potting compound, achieving an IP68 waterproof rating. This makes it suitable for marine, RV, golf cart, and industrial applications where moisture, vibration, and temperature extremes are common. True Maximum Power Point Tracking (MPPT) at 15 Hz ensures rapid adaptation to changing light conditions, outperforming controllers with slower or nominal MPPT algorithms.

Key Features

  • Voltage Boost Technology: Charges 24V batteries from panels with Vmp as low as 5V, ideal for 12V nominal panels or 36-cell modules
  • High Efficiency: 96-98% typical conversion efficiency reduces energy loss and heat buildup
  • Waterproof Construction: IP68-rated, fully potted electronics withstand submersion and harsh weather
  • True MPPT: 15 Hz tracking speed captures maximum power during cloud transients and partial shading
  • Low Self-Consumption: Only 6 mA standby draw preserves battery charge during idle periods
  • Integrated Safety: In-line fuse protection and multi-stage charging with temperature compensation
  • Wide Operating Range: Functions from -40°C to 85°C ambient, suitable for extreme climates

Reliable Charging for Critical Systems

This controller employs a multi-stage charge profile with bulk, absorption, and float stages, plus automatic temperature compensation (-56 mV/°C) to prevent overcharging in hot conditions and undercharging in cold. The ultra-low standby consumption of 6 mA ensures the battery is not drained when solar input is absent, a critical advantage for seasonal or intermittently used equipment.

Installation is straightforward with pre-stripped 16 AWG tinned flying leads and an included 10A in-line fuse. The compact dimensions (14 cm x 8.1 cm x 5.5 cm) and light weight (290 g) allow mounting in tight enclosures or directly on vehicle frames. A multicolor status LED provides at-a-glance indication of charging state.

Applications

  • Marine and RV: Maintain 24V house banks from small deck or roof panels
  • Golf Carts and EVs: Boost 12V panel output to 24V traction batteries
  • Remote Monitoring: Power 24V telemetry systems with a single low-voltage panel
  • Street Lighting: Reliable charging in all weather with no fan or vents to clog
  • Off-Grid Industrial: Operate 24V equipment from existing 12V solar infrastructure

By decoupling panel voltage from battery voltage, the Genasun GVB-8-Pb-24V-WP solves the common challenge of mismatched solar arrays and battery banks. It reduces the risk of undercharging in low-light conditions and eliminates the need for large, high-voltage panels, saving space and cost. The rugged, waterproof design mitigates failure risks associated with dust, salt spray, and condensation, ensuring long-term reliability in the field.

Upgrade Your Solar Charging System

Equip your 24V lead-acid setup with a controller built for efficiency and endurance. Order the Genasun GVB-8-Pb-24V-WP today and experience consistent, maintenance-free charging from any solar panel configuration.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • 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]
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SKU: 57362336240

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4.1 ★★★★★
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Verified Purchase
T. H.
Pawtucket, US
★★★★★ 5
Excellent value for an automatic watch, keeps VERY good time.
Color: Grey, Color: Grey
I've only had the watch for a day but wanted to leave a quick review on it to share a couple of notes. So far it keeps VERY good time, better than any of the automatics I own (including a Rolex Submariner, Tag Heuer Aquaracer, Tag Heuer Formula One, and several other sub $1k watches). I set it to an atomic time app on my phone yesterday and 24 hours later it's still SPOT on - hasn't gained/lost even a 1/10 of a second. I was shocked to see it's kept PERFECT time for the last day, I'm really blown away so far. I've worn it the entire time, we'll see how well it keeps time while being stored in a winder. This picture shown is the watch with a 22mm leather band on it, fit's without any issues (just need to squeeze in the leather a tad). I doubt it would work with a 22mm metal bracelet, but leather works great. Just FYI since the 21mm lug width is kind of odd. The face isn't quite a lustrious as the images make it look, but it's still a great-looking watch. For a sub $1000 automatic you can't go wrong, this is a fantastic watch at a great price. It'll be my daily driver for some time I'm sure. If I have any issues in the future I'll update the review.
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Reviewed in the United States on March 22, 2021
B
Verified Purchase
Beniamin Grigoryan
Bozeman, US
★★★★★ 5
It looks really cool and striking.
Color: Grey, Color: Grey
Really cool and beautiful watch. Although my specific unit runs 5 seconds fast every day—at first it’s annoying, but eventually you stop caring. 🤣
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Reviewed in the United States on April 16, 2026
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Verified Purchase
Paul Andreini
Alexandria, US
★★★★★ 5
A Beautiful Timepiece at an Awesome Price!!
Color: Grey, Color: Grey
I have lusted after this watch for four months. I first tried on a similar model (stainless steel band with a green face) in a local jewelry shop (Spitz Jewlers, Walnut Creek, CA, USA). It was "love at first sight," even if I didn't love the white lines on the face from 12-6 and 3-9. At the time, the MSRP was $775. The MSRP has since increased to $795. But I bought this beauty on Amazon.com for only $524.99; after applying the cash-back from my Prime credit card, this watch costs only $498.75. This was "the offer that I could not refuse," to quote from "The Godfather." Accuracy could be better: after only a few days, it is now 7 seconds behind my phone (to which I set my new watch). But I don't really care about that all that much. This is why I rated "accuracy" at 4 stars, but my overall review is 5 stars. My video shows the date changing suddenly at 11:59:59pm, just how I want it; in another photo, you can see that my Seiko changes the date more slowly, which I do not like. This watch is absolutely phenomenally beautiful. If you're on the fence over whether to make this purchase, then I would say "go for it!" You will not find a prettier, more accurate watch at a lower price in ANY store in the entire USA.
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Reviewed in the United States on April 28, 2023
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Verified Purchase
pradeepkanth
Bozeman, US
★★★★★ 4
Classy and sporty. Great value!
Color: Grey, Color: Grey
Excellent watch for the price. Looks sporty and dressy. More towards dress watch. Blue is dynamic. Strongly recommend blue for sporty feel. I was thinking of aqua terra. This come close to it with a price less than what i would have paid my state tax for omega aqua terra. My only concern is bracelet which i feel kind of OK. Better bracelet design would have made this watch much superior. 21 lug width is awful. Other than that, nothing to complain.
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Reviewed in the United States on July 13, 2020
T
Verified Purchase
Tim Shepherd
Battle Creek, US
★★★★★ 5
Stunning Gentleman's Watch
Color: Grey
This is my second Tissot watch. It's quite stunning in person. The online photos don't do it justice. It has the look and feel of a much more expensive gentleman's watch which makes this purchase a great bargain. Tissot is a great reliable Swiss made watch brand. My first Tissot watch which is probably more than 20 years old still runs great. Very pleased with this purchase.
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Reviewed in the United States on October 16, 2025

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