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

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 units 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 -40C to 85C 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.