Guides
12 V electrical planning guides
Start with the question in front of you: plan daily energy use, choose a system voltage, upgrade a battery or estimate runtime. Each guide explains the decision, shows an example and keeps the limits in view.
- Record daily energy use, keep assumptions visible, and plan storage, charging and wiring next.Read the guideCampervan electrical planning
How much energy will my van use?

- Compare current, battery energy and equipment compatibility before choosing a 12 V or 24 V system.Read the guideSystem voltage guide
Should I build a 12 V or 24 V system?

- See what can stay, which chargers need review, and what to check before connecting a LiFePO₄ house battery.Read the guideConversion guide
Can I replace lead-acid with lithium?

- Calculate time to reserve, then compare loads, charging and starting charge in a live circuit.Read the guideBattery runtime guide
How long will my battery last?

- Sizing, BMS protection, isolation and grounding checks, with the limits of what a drawing can verify.Read the guideDiagnostics reference
What can Crimp check for me?
