Epoch 48V 100Ah V2-T Elite LiFePO4 Battery C48100A-A, 5.12kWh, Internal 250A Class-T Fuse, Victron CAN, Heated, Bluetooth, IP67 Marine

About the Epoch 48V 100Ah V2-T Elite Battery

The V2-T is Epoch's 48V battery for Victron systems on boats, RVs and off-grid builds, with a Class-T fuse inside the case. That fuse is user-serviceable behind a sealed top panel, so the protection closest to the cells is a part you can replace rather than a reason to send the battery back. Around it you get IP67 sealing, self-heating, Bluetooth monitoring and native Victron CAN.

The included harness plugs into the primary battery and the GX device. On a Victron Cerbo GX MK2, use VE.Can 1 or VE.Can 2 set to 500 kbit/s, turn on DVCC, and set Epoch as both the controlling BMS (Battery Management System) and the battery monitor. From there the battery sets limits for your MultiPlus or Quattro and your Victron solar chargers, and the GX shows modules online and installed capacity so you can confirm every battery in the bank is reporting.

Class-T Fuse Protection Inside a 48V Marine Lithium Battery

The internal 250A Class-T fuse protects the battery at its source, and Epoch is clear about what it doesn't replace: you still need a DC-rated fuse or circuit breaker in the positive conductor as close to the battery as practical, a main disconnect, downstream protection and correctly sized cables. On boats and RVs, codes also limit how far the main fuse can sit from the battery.

On a Victron Lynx system, the Lynx Class-T Power In puts that main protection inside the busbar stack, with Class-T fuse positions for two battery inputs.

Sizing a 48V Inverter for One or More V2-T Batteries

Each battery delivers 80A continuous, about 4,096W of DC power at 51.2V, with 250A for up to 10 seconds to cover start-up surges from compressors, pumps and welders. Epoch's rule is simple: divide the AC load by 51.2V times the inverter's efficiency, and once the inverter's DC input can exceed 80A, add batteries in parallel. A 2,000W load through a 90%-efficient inverter draws about 43A, well inside one battery; at 4,000W the draw reaches about 87A, so plan on two.

Epoch plans runtime on about 4,096Wh per battery: roughly 4.1 hours at a steady 1,000W or 1.4 hours at 3,000W. Banks grow to 16 batteries in parallel, daisy-chained from each battery's black communication port to the next one's blue port. Weighing one battery against two for your inverter and loads? Our team is happy to help with sizing.

Self-Heating, IP67 and Installing the V2-T in a Boat or RV

Below 32°F (0°C), the BMS sends incoming charge current to internal heating pads first, then starts normal charging once the cells are warm, so the battery charges from -22°F (-30°C) ambient whenever charge current is available. Expect a delay before state of charge starts to climb. IP67 covers dust and temporary immersion to 3.3 ft (1 m) for 30 minutes with every seal and gland installed; pressure washing and continuous submersion fall outside it.

Epoch recommends that qualified personnel install high-current DC systems. The job involves a two-person lift for the 97 lb battery, upright mounting with a hold-down or the Epoch V2 and V2-T mounting bracket, which fastens to the threaded inserts, and room above the terminals for cables and the top service panel. Epoch gives no BCI group size, so check tray fit, hold-down and lid clearance when it replaces a Group 8D battery.

Land the cables on the M8 terminals at 8.85 lb-ft (12 N·m). Our custom battery cable builder makes them to length from 6 AWG to 4/0 AWG, sized for the load, the run and the codes that apply to your install.