The Victron Energy 12V 265Ah GEL Deep Cycle Battery is a sealed lead-acid battery built for solar storage, off-grid systems and marine or vehicle use. GEL electrolyte construction makes it maintenance-free and safe to install where ventilation is limited. M8 threaded insert terminals give a secure, vibration-resistant connection for professional installations.

Key features

• Capacity, 265Ah at 12V nominal voltage.
• GEL construction, sealed, maintenance-free and spill-proof, no water topping required.
• Terminals, M8 threaded insert type for a firm bolted connection.
• Deep cycle design, supports repeated charge and discharge cycling.
• Weight, 73.1kg, requiring two people or mechanical assistance to position.

Product overview

GEL batteries hold their electrolyte in a silica-based gel, removing the risk of acid spill and cutting gassing during normal use. That makes them suitable inside caravans, boats, battery enclosures and off-grid cabins where a flooded battery would need dedicated venting. GEL cells tolerate slow, deep discharges well but are sensitive to high charge voltages, so a charger with a dedicated GEL profile is essential.

Multiple units can be connected in parallel to increase capacity, or in series pairs to build a 24V bank. The battery is designed to work within the Victron ecosystem, including MPPT solar charge controllers, MultiPlus and Quattro inverter-chargers, and the Venus GX monitoring platform. Set any charge source to the correct GEL voltage parameters before commissioning.

Applications

• Off-grid solar storage in cabins, outbuildings and remote installations.
• Marine house battery banks needing sealed, spill-proof construction.
• Motorhome and caravan leisure battery systems.
• UPS and backup power systems.
• Telecoms and remote monitoring equipment with regular deep discharge cycles.

What's in the box

• 1 x Victron Energy 12V 265Ah GEL Deep Cycle Battery (M8 terminals)

Installation notes

At 73.1kg, handle this battery with appropriate lifting equipment or at least two people, and install it on a surface rated to support the weight. Use correctly rated M8 bolts and cable lugs without overtightening the terminals. Configure all charge sources to a GEL-specific charge profile, since voltages set for AGM or flooded batteries can cause damage. Installation in solar PV and off-grid systems should be carried out by a qualified electrician, in line with BS 7671 wiring regulations and any applicable building or marine standards.