System Category Hub 12.8V Nominal (LiFePO4)

Lithium Batteries

Deep-cycle LiFePO4 auxiliary storage built for extreme cycle life, cold-weather protection, and high usable capacity.

Technical coverage of 12V deep-cycle Lithium Iron Phosphate (LiFePO4) house batteries, Battery Management Systems (BMS), internal self-heating for sub-freezing charging, and Group 24/27/31 form factors.

PRIMARY APPLICATION: Permanent auxiliary battery banks, camper vans, flatbed campers
Deep-cycle 12V LiFePO4 auxiliary lithium battery installed inside a dedicated vehicle electrical compartment.
Electrical & Mechanical Reference

Lithium Batteries Baseline Parameters

Nominal Voltage
12.8V DC Flat discharge curve compared to lead-acid/AGM
Usable Depth of Discharge
80% – 100% DoD Nearly double the usable energy of equivalent Ah AGM
Charge Temperature Cutoff
32°F (0°C) Requires BMS low-temp cutoff or active internal heaters
Standard Capacities
50Ah – 400Ah+ Single battery or parallel bank configurations
Editorial Scope

Core Engineering & Buying Focus Areas

Every guide in the Lithium Batteries hub is structured around verifiable electrical specifications, real-world duty cycles, and safe vehicle integration.

01

BMS Continuous Discharge Ratings & Low-Temperature Charge Cutoffs

02

Internal Self-Heating Architecture for Winter Overlanding

03

BCI Group Sizes (Group 24, 27, 31, Mini, & Thin-Profile Mounts)

04

Parallel Bank Wiring, Busbar Balancing, and Class-T Fusing

Category Index

Published Guides & Technical Briefs

1 Published Guide
System Context

Where Lithium Batteries Fit in an Overland Power System

Off-grid vehicle components operate as part of an integrated 12V DC and 120V AC ecosystem connecting generation sources, charge regulation, battery banks, and camp loads.

Conceptual component-level architecture diagram of an overlanding vehicle 12V power system showing generation, charge regulation, storage, and loads.
Conceptual System Diagram Conceptual editorial illustration of component relationships in an overland 12V electrical ecosystem. For architectural overview only — not a certified wiring schematic or installation manual.
System Integration

Companion Power Categories

Off-grid vehicle electrical components work as an interconnected ecosystem. Explore adjacent categories that pair with lithium batteries.