Solar & 12V for Caravans, Motorhomes & Campervans
Guides

Simple, practical RV solar and 12V advice, MPPT vs PWM, controller sizing, batteries and wiring. View the posts below to get started.

DC‑DC Charging for Campervans & Motorhomes in NZ: What It Does, Why You Need It, and How to Size It

April 17, 2026
Charge while you drive—DC‑DC + MPPT explained, with quick sizing and install guidelines
DC cable size chart for RVs — mm² by amps and round‑trip length at 12V/24V (2–3% voltage drop)

DC Wire Sizes for RVs: mm² vs AWG, Voltage Drop, and Quick-Pick Charts

April 16, 2026
Learn mm² vs AWG, how to size DC cables for RV solar, batteries and inverters, and use quick charts for 12V/24V voltage drop and amp capcity. Mobile installation across Auckland.
Victron SmartShunt

Accurate RV Battery Monitoring for Caravans, Motorhomes and Campervans

April 16, 2026
Learn why a Victron SmartShunt is the best way to monitor RV batteries. What a shunt does, SmartShunt features and VictronConnect setup.
Victron MPPT

Victron MPPT Charge Controllers for RVs and Campervans

April 16, 2026
Learn why MPPT beats PWM for RV solar, key Victron SmartSolar features, and what 100/30 means. Sizing tips for caravans, motorhomes and campervans.