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Victron AGM Deep Cycle 12V 165Ah — is a highly reliable deep-cycle battery created using VRLA (valve-regulated lead-acid) technology with Absorbent Glass Mat (AGM). This technology guarantees exceptional resistance to deep discharges, an ultra-low self-discharge rate, and completely maintenance-free operation. The battery is an ideal choice for pairing with Victron Energy inverters, building off-grid solar power plants, as well as for use in marine transport and mobile power systems.
Key Advantages of the Victron AGM Deep Cycle Battery
- High capacity of 165Ah at 12V — a universal solution for energy-intensive tasks and creating powerful battery banks.
- Advanced AGM technology — the electrolyte is securely bound in the pores of the fiberglass separator, making the battery resistant to shocks, vibrations, and leaks.
- Absolutely sealed case (VRLA) — the battery does not require topping up with water, is maintenance-free, and safe for installation in residential areas.
- Exceptional tolerance to deep discharges — the battery easily restores 100% of its initial capacity even after severe voltage drops.
- Minimal self-discharge — losses are less than 2% per month (at 20°C), making the battery ideal for seasonal operation without constant recharging.
- Long service life — the Design Life is 7–10 years in float service (at 20°C).
- Outstanding cold cranking amps (600 CCA) — allows the battery to be used not only as a traction battery but also as a starter battery for engine starting or combined use with high-power industrial UPS.
- Flawless compatibility — the battery is perfectly matched to work with Victron Energy inverters, chargers, and MPPT controllers.
- Freedom of installation — thanks to being sealed, the battery can be installed on its side (installation with terminals facing down is not recommended).
- Convenient terminals — the terminals are equipped with an internal thread for a reliable bolted connection (bolts are included).
Technological Features
- Impressive cycle life: over 600 cycles at an optimal 50% depth of discharge, and up to 1500 cycles at a gentle 30% discharge.
- Support for fast charging — the ability to accept charge currents up to 0.2C (up to 33A), which is optimal for rapid recharging from generators and powerful solar MPPT controllers.
- Precise temperature compensation — the recommended charge voltage compensation coefficient is ±4 mV per cell (–24 mV/°C for a 12V battery), which is critically important for extending service life.
- Adaptive charging algorithm (4-stage by Victron) — the use of branded chargers guarantees the correct charge cycle, preventing gassing and electrolyte dry-out.
- Confident operation under load — low internal resistance allows it to power high-power inverters and uninterruptible power supplies without significant voltage drops.
Use Cases
- Backup power systems with a generator — acts as a reliable buffer, providing power for 5-10 minutes until the automatic start of the generator set.
- Off-grid backup systems (without a generator) — thanks to the deep cycle, it provides long-term power to critical loads from 30 minutes to 12 hours during grid outages.
- Country houses and cottages — the basis for building reliable off-grid or backup power systems based on Victron inverters, with the ability to charge from the sun or a fuel generator.
- Solar power plants (PV) — perfectly copes with the role of the main energy storage or a capacious buffer to smooth out peak loads.
- Campers, motorhomes, and caravans — reliable power supply for the onboard network: refrigerators, lighting, pumps, and 220V inverters.
- Water transport (yachts, boats) — provides stable and safe power for critical navigation electronics and communications.
Service Support in Georgia
Victron Energy Georgia — the authorized official representative of Victron Energy products in Georgia. We offer a full cycle of engineering services: from expert design of hybrid and off-grid power systems to professional installation, commissioning, and official warranty service for the entire range of equipment (inverters, charge controllers, batteries, and peripherals).
Communication and Monitoring Interfaces
Although lead-acid batteries do not have built-in digital BMS boards, for precise control and protection of the system, we strongly recommend using Victron Energy branded peripherals:
- Battery Monitor BMV-700/712 Smart — a high-precision monitor displaying the state of charge (SOC), current voltage, consumed current, predicted remaining time, and cycle counting.
- SmartShunt — a compact measuring shunt with Bluetooth data transmission directly to your smartphone and the ability to integrate into the VRM portal via GX devices.
- Smart Battery Sense — a wireless sensor for highly accurate measurement of temperature and voltage directly at the battery terminals, transmitting data to chargers for ideal temperature compensation.
- Orion-Tr Smart DC/DC Charger — intelligent converters for the safe and correct charging of AGM batteries from a vehicle's alternator (car or yacht).
- Blue Smart IP22 / IP65 / IP67 Charger — a family of professional 220V mains chargers with a proprietary adaptive charging algorithm.
- BatteryProtect and Smart BatteryProtect — a critical protection module that will automatically disconnect non-priority loads when the voltage drops to a preset threshold, protecting the expensive AGM battery from a destructive deep discharge!
- Battery Balancer — a mandatory device for 24V or 48V systems assembled from series-connected 12-volt batteries. The balancer equalizes the voltage, preventing the overcharging of one battery and the undercharging of another.