Enerdrive ePOWER B-TEC 36V 100Ah LiFePO4 Lithium Battery for Deep Cycle Power

The Enerdrive 36V 100Ah ePOWER B-TEC is a purpose-built LiFePO4 (Lithium Iron Phosphate) battery designed for demanding deep cycle applications where you need a single battery to deliver consistent capacity, reduced weight and modern monitoring. Ideal for Australian mobile, marine and remote power setups, this 36V lithium battery suits users who want a streamlined system with visibility into battery health and operating conditions.

Built around prismatic cells and supported by an internal Battery Management System (BMS), the ePOWER B-TEC platform is engineered to help manage cell performance during operation and protect the battery pack from common electrical risks. For system owners, that means greater confidence when powering loads in a caravan, 4WD auxiliary setup, small watercraft, or remote low-power site—where stable energy storage can be critical.

Wireless smartphone monitoring for informed power management

A key advantage of the ePOWER B-TEC range is its wireless Battery Monitoring Technology. Using the Enerdrive monitoring app on an Android or Apple device, you can view real-time battery information without needing extra displays or shunts in many setups. This is especially useful in enclosed battery compartments, marine installations, or touring vehicles where quick checks help you plan charging and manage loads.

• Battery capacity, voltage and current (amps) for day-to-day load tracking
• State of Charge (SOC) to support smarter energy usage off-grid
• State of Health (SOH) and cycle count for long-term battery oversight
• Individual cell voltage and temperature readings for deeper diagnostics
• Status, alarms and event information to help identify abnormal conditions
• BMS information to support service and troubleshooting

Integrated BMS protection for real-world installations

The battery includes an internal Battery Management System designed to monitor and optimise each prismatic cell during normal operation. The BMS helps protect the pack from:

• Over charge
• Over discharge
• Over temperature
• Short circuit

In practical terms, these protections can help support safer operation in moving vehicles, boats, and remote systems where electrical loads and ambient temperatures can vary.

Usable capacity and weight savings vs lead-acid

When upgrading from AGM or other lead-acid batteries, a major motivation is often usable energy and space/weight reduction. Enerdrive references the typical depth-of-discharge comparison of 80% for lithium and 50% for AGM, which highlights why many users see more usable power from lithium in everyday cycling.

Indicative comparison (based on standard depth of discharge):

• 100Ah Lithium ≈ 160Ah AGM
• 125Ah Lithium ≈ 200Ah AGM
• 200Ah Lithium ≈ 320Ah AGM
• 300Ah Lithium ≈ 480Ah AGM

Enerdrive also notes that the ePOWER B-TEC provides around 60% more usable power than an equivalent lead-acid option, while being nearly 50% lighter and around 30% smaller. For Australian touring builds, that can translate to easier installation, improved payload management, and more room for other equipment.

Where a 36V 100Ah lithium battery fits best

This model is designed for applications requiring a single deep cycle battery that meets the amp-hour requirement. It’s a strong match for:

• Camper trailers and caravans where space and weight matter
• 4WD auxiliary battery systems supporting fridges, lighting and accessories
• Small watercraft and select marine electrical loads
• Low-power communication sites or remote monitoring systems
• General mobile, marine and remote deep cycle applications

If you’re sizing a system, a 36V battery bank is commonly chosen where higher system voltage helps reduce current draw for a given power level—often allowing smaller cable sizes and potentially lower voltage drop when engineered correctly.

Parallel capability and system planning notes

The B-TEC battery can be paralleled to a second B-TEC battery of the same size. For performance and lifespan, Enerdrive advises connecting no more than two batteries in parallel to increase overall capacity. As with any lithium installation, ensure your overall loads do not exceed the current limits of a single battery’s BMS when operating in parallel.

If you require a larger battery system than the ePOWER B-TEC range supports, Enerdrive recommends considering the Enerdrive Pro Series Power Pack Systems, which are designed for multiple parallel and series configurations with active cell balancing protection across the pack.

Why Enerdrive for lithium in Australia

Enerdrive has spent years researching, designing and testing lithium batteries and compatible charging systems, and is known in Australia for integrated energy solutions for mobile, marine and remote use. The ePOWER B-TEC range reflects that focus: a practical deep cycle lithium battery with built-in monitoring and protective electronics designed to support real-world installations.

Key features

• 36V 100Ah LiFePO4 deep cycle battery for mobile, marine and remote power
• Wireless monitoring via smartphone app (Android and Apple)
• Integrated BMS with protection and cell management features
• Visibility of SOC, SOH, cycles, cell voltage and temperature
• Parallel-ready with guidance to use up to two same-size batteries

Note: Correct charging equipment and installation practices are essential for lithium battery performance. If you’re upgrading from AGM or designing a new 36V system, confirm charger and load compatibility and follow Enerdrive’s published specifications.