Guides/Electrical Systems

The Ultimate Guide to Campervan Electrical Systems

Master your campervan electrical system. Learn about 12V vs 24V, lithium batteries, solar sizing, and UK wiring safety standards for DIY builds.

Nominal Voltage12V / 24V / 48V
Battery TypeLiFePO4 (Recommended)
Max Inverter Load3000VA+

The Foundation of Off-Grid Living

Designing a reliable electrical system is the most complex part of any van conversion. It requires a deep understanding of energy consumption, storage density, and safety protocols.

12V vs 24V Architecture

For larger builds (Sprinter L3/L4), we increasingly recommend 24V systems to reduce cable thickness and improve efficiency for high-power appliances like induction hobs.

Common Engineering Mistakes

Undersized cabling leading to voltage drop and fire risk.

Inadequate ventilation for high-power inverters.

Mixing battery chemistries (e.g. Lead Acid + Lithium).

Recommended Hardware