Charging Systems

30 amp vs 50 amp shore power for RVs and vans — what each delivers in watts, which plug is which, adapters, and what you actually need for a van conversion.

What a battery isolator (VSR, relay, or diode) does in a van or RV, how it differs from a DC-DC charger, and the rare cases where an isolator still makes sense.

The best DC-DC chargers for van and RV builds in 2026 — Victron Orion XS, Renogy DCC50S, and Sterling compared on amperage, smart alternator support, and price.

Best portable generators for RV and van builds in 2026 — Honda EU2200i, Jackery inverter generator, and Champion compared on noise, weight, and output.

Best converter/chargers for van and RV shore power setups in 2026 — Victron Blue Smart, PowerMax, and Renogy compared on amperage, LiFePO4 support, and price.

How alternator charging works for a van or RV house battery — DC-DC chargers, split-charge relays, smart alternators, and how much charge you actually get per hour of driving.

How to charge a van or RV house battery at home — from a standard outlet, a garage 20A circuit, with a dedicated shore power setup, and how long each takes.

How fast a DC-DC charger charges a van or RV house battery — real charge rates by amperage, time to full from different starting states, and what affects speed.

DC-DC charger vs battery isolator (VSR/relay) for van and RV builds — which works with your alternator, which charges LiFePO4 correctly, and which to buy.

Step-by-step wiring guide for a DC-DC charger in a van or RV — cable sizing, fuse placement, ignition trigger, and common mistakes to avoid.

How to wire a 30 amp shore power inlet in a van conversion — inlet location, cable sizing, breaker, converter/charger connection, and safety requirements.

Renogy DCC50S review — the 40A DC-DC charger and 30A MPPT solar controller combo unit for van and RV builds. What it does well, its limits, and who should buy it.

Why your van or RV house battery isn't charging while driving — smart alternator issues, DC-DC charger faults, ignition trigger problems, and how to diagnose each.

All van and RV battery charging options compared — solar, DC-DC alternator, shore power, and generator. Speed, cost, and when to use each.

What an RV converter/charger does, how it differs from a standalone charger or inverter/charger, and the best units for van and RV shore power setups in the US.

How to combine solar, DC-DC alternator charging, and shore power in a van or RV — how they interact, which takes priority, and wiring best practices.

Which shore power adapters to carry for a van or RV — 30-to-50 amp dogbones, 15/20-to-30 amp adapters, extension cords, and what works where.

Do you need a surge protector for van or RV shore power? What they protect against, portable vs hardwired, and the best options for 30 amp setups.

Why modern van and RV alternators require a DC-DC charger — how smart (variable-voltage) alternators work, why split-charge relays fail, and how to wire correctly.

Victron Orion XS 12/12-50A review — the 50A isolated DC-DC charger for van and RV builds. Features, real-world performance, and how it compares to the Orion-Tr Smart.

How to size a generator for a van or RV — wattage requirements for battery charging, running AC, and common appliances, with US product recommendations.

How to size a DC-DC charger for alternator charging in a van or RV build, and why smart alternators make one essential.

How shore power works in a van or RV build — NEMA TT-30 vs. 14-50 connections, converter/chargers, and the NEC Article 551 requirements.