Tagged: 12V systems

A voltmeter tells you almost nothing about how much charge is left. Here's why a shunt-based battery monitor earns its spot on every off-road van.

Two kids charging tablets, a Switch and a Kindle every night draws more than people think. Here's the real amp-hour cost and when it tips you to a powered site.

Modern alternators and lithium batteries don't play nice without a DC-DC charger. Here's what one actually does, how to size it, and where it goes wrong.

A day-by-day power budget for solo touring off one battery bank: what a fridge, water pump, lights and a laptop actually draw, and where the sums fall apart.

Woke up to a dead battery and no idea why? Here's where the current actually goes when your rig sits still, and how to find it before it strands you.

Fixed roof solar is convenient but loses serious output in winter and under trees. Here's the maths on angle, shading and when a folding panel earns its keep.

DC-DC chargers are one of the most misunderstood bits of 12V kit. Priya Raman cuts through the spec-sheet noise and tells you what actually matters.

Stop guessing how much solar and battery capacity you need. Marto walks through real load calculations, honest panel output figures, and the sizing mistakes that leave tourers flat.