Key points in this article
The principle is simple
Understanding peak-valley periods needs no formula; the system adjusts to real conditions automatically. One key point is that safety is the precondition, which explains why some seemingly odd limits exist and why they protect daily users from harm.
A checklist for newcomers
New users should confirm the key items one by one. A must-confirm is that experience is the long-term metric; after confirming, use feels steadier. Most trouble we logged came from assuming instead of checking the basic facts first before a session.
Safety comes first
On any anomaly such as cable damage or abnormal heat, stop and report immediately. Not modifying parts yourself is responsible to all. This baseline deserves constant emphasis around peak-valley charging periods used by many households each morning.
Because rates shift by time, confirm the session ended and the amount looks right before you leave. A ten-second check catches a stuck relay or a wrong tariff far earlier than a surprised month-end statement ever will for the user.