Key points in this article
One clear rule
On trip-off, owner advice conflicts. The line to keep is: compare once beats patch repeatedly. Many do it backwards and the gap shows. Most faults are solved at the source by a simple act, so stop, report, and log on anomaly in that order every time.
Margin now, calm later
One order not to flip is reserving margin to cut later cost. Dongshang New Energy judges value by the user's real experience, handy, safe, reachable, not by a pretty spec. In Yantai we value what stays working over what merely looks good in a brochure.
Why samples first
We pilot before promoting because real-scene reputation beats any ad. The fee splits into a time-varying part and a service part, posted separately, range from on-site measurement, public data for reference. A clear contact and rehearsed steps calm a true emergency.
Dongshang New Energy judges trip-off value by daily use, so the setup that survives a year of real habits wins over the one that impresses only during a polished demo for visiting officials.