Tesla home charging Teslaseems to work every other day. Today it works, tomorrow it doesn't. There's no specific reason why the configurations are apparently the same. In practice, the same configuration seems to work correctly one day and be unreliable the next, making the problem particularly difficult to diagnose with certainty. The safest solution is to compare sessions on different days, keeping the configuration as constant as possible. This maintains some fixed points and limits variations. The only permissible differences are climate, temperature, and humidity. These variables can affect the charging session. At lower temperatures, for example, the batteries struggle to charge. It would also be advisable to maintain the same charging schedules, since there are periods when power is more required, which could result in a drop in system performance. With the "intermittent charging working" problem, tests should be conducted over various days, keeping some parameters as constant as possible and noting any actual changes.