The cost of an off-grid power setup varies widely depending on your energy needs, battery capacity, and charging sources. Merlin Power stocks over 1,000 products, allowing us to provide power solutions for almost any requirement. For more complex bespoke system design, Merlin Power also offers engineering and installation services. Book a free 10 minute, no-obligation, consultancy call for help sizing and costing a system for your specific requirements.

Off-grid power gives you energy independence in locations without mains electricity, providing silent and emission-free operation and allowing extended stays at sea or in remote locations. With Merlin Power's Fullriver AGM batteriesand smart battery management systems, off-grid power systems are more reliable and longer-lasting than ever.

In a typical off-grid system, energy is captured from solar panels, temporary shore power or an alternator and stored in a battery bank. A battery management controller regulates charging and protects against over-discharge. When AC power is required, a pure sine wave inverter converts the stored DC power to 230V AC which can be used to run everyday appliances e.g., kettle, TV, microwaves, CCTV.

Off-grid power refers to generating and using electricity independently of the mains utility network on an application such as a VW campervan, sailing yacht, or even a shed conversion at the bottom of your garden. Merlin Power supplies complete off-grid power solutions for marine, vehicle, and remote site applications, including AGM battery storage, solar panels, high-output alternators, inverters, and battery management systems, all available from a single trusted UK supplier.

Fullriver AGM batteries from Merlin Power offer a sealed, non-hazardous design that is safe for use in boats, campervans, and off-grid living spaces. They require no maintenance, resist vibration, and perform reliably in variable temperatures. Additionally, Fullriver’s superior cycle life, and depth of discharge, allows them to last longer, saving you the time and money associated with frequent battery replacements. Combined with Merlin Power's battery management and monitoring solutions and a pure sine wave inverter, they form the heart of a dependable, long-lasting off-grid power system.

Fullriver DC Series batteries are designed to outlast conventional AGM batteries by two to three times when properly managed. A battery management controller from Merlin Power helps protect against over charging or undercharging, significantly extending battery service life in off-grid applications.

For a leisure user, using their campervan ~100 days a year, it would not be uncommon for a Fullriver DC series battery to last 10+ years.

For off-grid use, calculate your daily energy consumption, multiply by the number of days you will require power for, taking into account the recommended depth of discharge of your batteries (typically 80% for premium Fullriver AGM batteries). Merlin Power's team can help you size your battery bank and choose the right Fullriver battery model to match your solar, wind, shore power, engine or alternator charging setup.

Fullriver DC Series AGM batteries, available from Merlin Power as the UK's leading distributor, are a top choice for off-grid energy storage. Engineered for repeated deep cycling, they are used in solar power systems, boats, campervans, and critical use mobile power applications. 

Fullriver Pure Lead AGM batteries, exclusively distributed in the UK by Merlin Power, are widely regarded as the best AGM batteries available. Unlike many manufacturers, Fullriver controls the entire production process from grid casting and plate pasting through to final assembly, ensuring total quality control. By using:

• 99.9% pure lead,
• over-the-partition busbar welds,
• premium brass terminals,
• a 10 day plate curing process,
• A sealed, maintenance-free ABS case,

Fullriver Batteries are able to perform to a much higher level than other batteries on the market.

The DC Series, Full Force Series, and EGL Series are ideal for deep-cycle applications, while the Full Throttle  Series suits high-power starting needs.

The key factors when selecting an AGM battery are capacity (Ah), voltage (6V or 12V), intended use (deep cycle vs. starting vs. dual purpose), and physical dimensions. For deep discharge applications such as leisure, solar, and marine, the Fullriver DC Series, Full Force, or EGL Series are recommended. For engine starting or high current loads (motors, compressors, winches), the Full Throttle Series is the ideal choice. Pair with a battery management controller to maximise service life.

Fullriver AGM batteries from Merlin Power are engineered to last two to three times longer than conventional AGM alternatives, with the flagship Fullriver DC Series battery designed for a 10-year service life. Their 99.99% pure-lead technology and heavy-plate construction enable hundreds of deep discharge cycles. A 5-year warranty is available on selected batteries, and Merlin Power's battery monitors track state of charge and health in real time.

AGM (Absorbent Glass Mat) batteries are sealed, maintenance-free, and spill-proof, making them safe to use in any orientation and in enclosed spaces. Fullriver's Pure Lead AGM batteries from Merlin Power also offer faster charging, better performance at temperature extremes, deeper depth of discharge, and a longer service life compared to standard AGM products. They are a top choice for emergency services, defence, marine, leisure,off-grid, and commercial applications.