48V Deep Cycle Batteries

48V Lithium Batteries for Off-Grid, Caravan and Marine Power

A 48V lithium battery bank suits larger energy systems where high inverter loads, long cable runs or significant solar input make 12V and 24V setups inefficient. Running at 48V reduces current for the same power, which allows smaller cable sizes, lower voltage drop and less heat across the system. This range brings together 48V LiFePO4 batteries from Victron Energy and Pylontech, plus the Alpha IP67 Smart Bluetooth series. Options cover off-grid homes, tiny homes, large caravans and RVs, boats and commercial installations.

48V Lithium Battery Options in This Range

• Victron 48V 100Ah Smart NG (NextGen) LiFePO4: Part of Victron's NG lithium platform, built for integration with Victron 48V inverter, charger and monitoring systems.
• Victron Energy 51.2V 100Ah Lithium SuperPack NG: A compact 48V-class LiFePO4 option within the Victron NG family.
• Pylontech US5000-B 48V 100Ah 4.8kWh: A rack-mounted lithium battery module suited to stationary off-grid solar and home energy storage, where multiple modules can be housed together.
• Alpha 48V 100Ah IP67 Smart Bluetooth: An IP67-rated lithium battery with Bluetooth monitoring for mobile and harsh-environment installations.
• Alpha 48V High Current 50Ah IP67 Smart Bluetooth: A smaller-capacity, high-current option where space is limited but strong discharge performance is needed.

If you are comparing chemistries and voltages more broadly, the full lithium batteries range includes 12V and 24V alternatives.

Why Choose a 48V LiFePO4 Battery System?

LiFePO4 (lithium iron phosphate) chemistry offers a stable, long-cycle-life platform with consistent voltage under load, low self-discharge and minimal maintenance compared with lead-acid. At 48V, these benefits scale well for high-demand loads such as air-conditioning, induction cooking, workshop tools and whole-of-home off-grid power. A 48V bank also pairs naturally with 48V inverter/chargers and high-voltage solar arrays, helping keep wiring tidy and efficient.

How to Choose the Right 48V Lithium Battery

Match the battery to your installation, ecosystem and load profile:

System integration: If you run a Victron 48V inverter or GX device, the Victron NG batteries are designed for that ecosystem. Our guide introducing Victron NG lithium batteries and BMS explains how the NG range and its battery management fit together.

Installation environment: Rack-mounted modules such as the Pylontech US5000-B suit indoor, stationary energy storage. For caravans, boats and exposed locations, the IP67-rated Alpha series offers water and dust protection.

Capacity and current: A 100Ah 48V battery provides roughly 4.8 to 5.1kWh nominal energy. Choose the 50Ah high current model where space is tight, or parallel larger units for extended autonomy. Always check individual product specifications for continuous discharge ratings and parallel limits.

Monitoring: Bluetooth-enabled batteries provide direct status data, while a shunt or monitor from our battery management range gives accurate state-of-charge tracking across the whole bank.

Build a Reliable 48V Energy System

Whether you are upgrading an off-grid home, fitting out a large RV or designing a marine power system, these 48V lithium batteries deliver efficient, high-capacity storage from proven brands. Compare the models above, check compatibility with your inverter and charging equipment, and order your 48V LiFePO4 battery today to power your system with confidence.