Category Insights & Analysis

News & Updates, Insights & Analysis, Technology & Methods

VSR vs B2B DC-DC Charger: Why Getting This Wrong Is Getting More Expensive

Vehicle alternator in engine bay — modern smart alternators modulate output voltage, making traditional VSR split charge systems unreliable

The voltage sensing relay has been the standard split charge solution for campervan and leisure vehicle builds for thirty years. It was fine then. Smart alternators are making it a problem now — and fitting the wrong one is becoming an increasingly expensive mistake to diagnose and fix.

Gavin Duffy
23/03/2026

Technology & Methods, Insights & Analysis, Useful

The Gender Lives in the Contact. Not the Connector.

Deutsch DT series plug assemblies with orange wedge locks and receptacle pigtails laid out on cutting mat showing full product range

Ask an electrical engineer why they don't say male and female connectors and brace yourself for a proper answer. It's not politics. It's precision — and once you understand why, you'll never specify a connector the same way again.

Gavin Duffy
10/03/2026