Guides
Connector standards, conversion logic and selection rules for DC fast charging — written by our engineering team and kept current with CCS1, CCS2, NACS (J3400), CHAdeMO and GB/T.
NACS (SAE J3400) Explained: Four DC Directions and Four Myths
What SAE J3400 actually specifies, the four NACS DC conversion directions, and four things buyers get wrong about the Tesla-origin connector.
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How to Choose a DC Fast-Charging Converter: 8-Point Buyer's Checklist
Direction, continuous current, voltage, protocol board, IP rating, temperature, certification and commercial terms — the eight specs that decide whether a converter survives in the field.
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DC Converter vs Adapter: What's the Difference and Why It Matters
A converter is an adapter with a protocol board. What that means for current rating, cost, safety and firmware support in DC fast charging.
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EV Charging Connector Compatibility Guide: CCS1, CCS2, NACS, CHAdeMO, GB/T
Which DC connector works where: the five EV fast-charging standards compared side by side, all 20 conversion directions, and what a converter can and cannot do.
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