{"product_id":"victron-12v-165ah-gel-deep-cycle-battery","title":"Victron 12V\/165Ah Gel Deep Cycle Batt. - BAT412151104","description":"\u003ch1 style=\"color: #f87c24;\"\u003eVictron Energy 12V 165Ah Gel Deep Cycle Battery\u003c\/h1\u003e\n\n\u003cp\u003eThe Victron Energy 12V 165Ah Gel Deep Cycle Battery is a sealed, maintenance-free lead-acid battery designed for cyclic and standby applications in solar, off-grid and marine systems. With a C20 rated capacity of 165Ah, it suits installations where reliable deep discharge performance and long service life are required without the need for regular electrolyte maintenance.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e165Ah capacity rated at C20, providing a consistent and predictable discharge curve for system sizing.\u003c\/li\u003e\n  \u003cli\u003eGel electrolyte construction eliminates free liquid, making the battery safe for installation in enclosed or tilted positions.\u003c\/li\u003e\n  \u003cli\u003eSealed, valve-regulated design requires no water topping and produces no acid fumes under normal operating conditions.\u003c\/li\u003e\n  \u003cli\u003eDeep cycle rated, built to withstand repeated discharge and recharge cycles typical of solar and off-grid use.\u003c\/li\u003e\n  \u003cli\u003e12V nominal voltage, compatible with standard 12V charge controllers, inverters and battery chargers.\u003c\/li\u003e\n  \u003cli\u003eVictron Energy manufacture, backed by the brand's established quality control and technical support network.\u003c\/li\u003e\n  \u003cli\u003eWeight of 48.4kg reflects the substantial lead content that underpins its capacity and cycle life.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eGel batteries use a silica-based gelled electrolyte rather than free liquid acid. This construction prevents electrolyte stratification and reduces the risk of acid spills, which makes them well suited to installations where the battery may not always be perfectly upright or where ventilation is limited. The gel also tends to perform better than flooded lead-acid in partial state-of-charge conditions, which is a common operating mode in solar applications where charging is weather-dependent.\u003c\/p\u003e\n\n\u003cp\u003eAt 165Ah (C20), this battery provides a usable capacity of approximately 82Ah when discharged to the recommended 50% depth of discharge for cyclic use. This should be factored into system design when calculating autonomy. The 12V format allows flexible configuration: batteries can be connected in series to build 24V or 48V banks, or in parallel to increase total capacity at 12V.\u003c\/p\u003e\n\n\u003cp\u003eGel batteries require a charge profile specifically suited to their chemistry. Charging voltage limits are lower than for flooded batteries, and exceeding them will cause irreversible damage to the gel structure. It is essential that any charger, solar charge controller or inverter-charger used with this battery is set to the correct Victron gel charge profile before commissioning.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSKU: BAT412151104\u003c\/li\u003e\n  \u003cli\u003eNominal voltage: 12V\u003c\/li\u003e\n  \u003cli\u003eCapacity (C20): 165Ah\u003c\/li\u003e\n  \u003cli\u003eBattery type: Gel Deep Cycle, valve-regulated lead-acid (VRLA)\u003c\/li\u003e\n  \u003cli\u003eWeight: 48.4kg\u003c\/li\u003e\n  \u003cli\u003eGTIN: 8719076037057\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSolar off-grid systems requiring a deep cycle battery bank at 12V, 24V or 48V.\u003c\/li\u003e\n  \u003cli\u003eMarine and narrowboat house battery banks where a sealed, spill-proof construction is required.\u003c\/li\u003e\n  \u003cli\u003eMotorhome and vehicle leisure battery installations with limited ventilation.\u003c\/li\u003e\n  \u003cli\u003eRemote telecoms, monitoring or control equipment with solar or wind charging.\u003c\/li\u003e\n  \u003cli\u003eUPS and backup power systems requiring a maintenance-free standby battery.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eWhat Is Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1x Victron Energy 12V 165Ah Gel Deep Cycle Battery\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eInstallation Notes\u003c\/h3\u003e\n\u003cp\u003eThis battery weighs 48.4kg. Two people and appropriate lifting equipment are required for safe handling and positioning. Ensure the charge source (solar charge controller, inverter-charger or standalone charger) is configured to the correct gel charge profile before connecting. Do not use a charge profile intended for flooded or AGM batteries, as incorrect charging voltages will permanently damage the gel electrolyte. Battery installations forming part of a solar PV or off-grid system should be carried out by a qualified electrician or MCS-accredited installer. Ensure adequate terminal protection and appropriate fusing in line with BS 7671 wiring regulations.\u003c\/p\u003e","brand":"Victron Energy","offers":[{"title":"Default Title","offer_id":59863034331470,"sku":"BAT412151104","price":317.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/3698\/8238\/files\/VoltaconSolar_-_BAT412151104_-_12V-165Ah_Gel_Deep_Cycle_Batt..webp?v=1781175036","url":"https:\/\/voltaconsolar.com\/products\/victron-12v-165ah-gel-deep-cycle-battery","provider":"VoltaconSolar","version":"1.0","type":"link"}