Water Resistant Batteries

Water Resistant Lithium Batteries for Harsh Environments

Moisture, salt spray, condensation and road dust are common causes of corrosion and early failure in mobile power systems. This collection brings together sealed lithium batteries for installations where a standard enclosure may not be enough, such as marine bilges, open canopies, ute trays, under-chassis boxes and exposed off-grid sites. Options cover 12V, 24V and 48V systems, from compact 20Ah units to 400Ah house banks, along with hybrid lithium starting batteries.

Ranges in This Collection

• Alpha IP67 Smart Bluetooth series: IP67-rated LiFePO4 batteries from 12V 20Ah to 12V 400Ah, plus 24V 100Ah, 24V 170Ah, 48V 100Ah and a 48V High Current 50Ah model. Bluetooth monitoring is built in.
• Apex IP67 and Axion Marine Version: 12V 300Ah options. The Axion adds CANBus communication for integrated marine and RV systems.
• Enerdrive B-TEC Ultra IP67: waterproof 12V lithium batteries in 100Ah, 200Ah and 300Ah capacities.
• Victron Smart NG and SuperPack NG: next generation LiFePO4 batteries in 12V, 24V, 48V and 51.2V configurations. They suit Victron-based systems that need tight integration and monitoring.
• Invicta Hybrid Lithium: 12V starting and dual-role batteries from 800CCA to 1400CCA in common case sizes, including LN2, LN3, 95D, 31H and Max Extreme formats.

For a closer look at the Victron range, see our guide introducing Victron NG lithium batteries and BMS. Always confirm the IP rating and mounting requirements on each product page before installing in a wet or exposed location.

Why Choose a Sealed Lithium Battery?

LiFePO4 chemistry gives lower weight, deeper usable capacity and stable voltage under load compared with lead-acid. A sealed, water resistant housing adds protection against ingress in places that see vibration, spray or washdown. This makes these batteries well suited to:

• Tinnies, cruisers and sailing yachts
• Caravans and camper trailers
• 4WD canopies and trucks
• Remote off-grid and commercial installations

If your installation does not need sealed protection, browse the full range of lithium batteries for more capacity and form-factor options.

Selection Tips for Matching a Battery to Your Setup

• Match system voltage first: most caravans, 4WDs and small boats run 12V. Larger vessels, trucks and off-grid systems often benefit from 24V or 48V to reduce cable size and current.
• Size capacity to daily usage: add up your daily amp-hours and allow margin for cloudy days or extra time at anchor.
• Check peak current: inverters, winches and electric outboards need a battery with a suitable continuous discharge rating. The 48V High Current model and the Invicta Hybrid range target high draw applications.
• Consider communication: choose CANBus or Victron NG models when you want the battery to report to a GX device or charger.
• Plan for monitoring: pair your battery with a shunt or isolator from our battery management range for accurate state of charge.

Choose a water resistant lithium battery built for where you actually travel and work. Compare voltages and capacities above, then order today for dependable, low maintenance power on the water, on the road or off the grid.