fix: lower MAX_AMPS to 14 for residential single-phase circuits

The hardcoded 16A ceiling was too high for a 14A circuit breaker.
Lowered the constant; tests updated accordingly. Making MAX_AMPS
configurable per install is a v0.1.3 follow-up — for now, anyone with
a different circuit rating will need to fork and edit the constant.

CHANGELOG.md

@@ -1,5 +1,10 @@
 # Changelog
 
+## [0.1.2] - 2026-05-27
+
+### Changed
+- `MAX_AMPS` lowered from 16 to 14 to fit single-phase 14 A residential circuits. (Hardware-specific; making this configurable per install is on the v0.1.3 follow-up list.)
+
 ## [0.1.1] - 2026-05-27
 
 ### Fixed

custom_components/ev_solar_charger/algorithm.py

@@ -98,7 +98,7 @@ def pick_submode(
 # Defaults used internally; the coordinator passes config-driven values via Snapshot
 # extensions in a later task. For v0.1 these are constants.
 MIN_AMPS = 5
-MAX_AMPS = 16
+MAX_AMPS = 14
 VOLTAGE = 230
 DINNER_AMPS = 6
 MAX_PLAUSIBLE_EV_W = 20_000  # anything above this is sensor glitch

tests/test_algorithm.py

@@ -137,14 +137,14 @@ def test_force_min(base_snapshot: Snapshot) -> None:
 def test_force_max_from_off(base_snapshot: Snapshot) -> None:
     s = dataclasses.replace(base_snapshot, mode=Mode.FORCE_MAX, last_desired_amps=0)
     d = compute_decision(s)
-    assert d.desired_amps == 16
+    assert d.desired_amps == 14
     assert d.write_action is WriteAction.TURN_ON_AND_SET
 
 
 def test_force_max_from_charging(base_snapshot: Snapshot) -> None:
     s = dataclasses.replace(base_snapshot, mode=Mode.FORCE_MAX, last_desired_amps=10)
     d = compute_decision(s)
-    assert d.desired_amps == 16
+    assert d.desired_amps == 14
     assert d.write_action is WriteAction.SET_AMPS
 
 
@@ -198,7 +198,7 @@ def test_night_below_target_charges_at_max(base_snapshot: Snapshot) -> None:
         last_desired_amps=None,
     )
     d = compute_decision(s)
-    assert d.desired_amps == 16
+    assert d.desired_amps == 14
     assert d.sub_mode is SubMode.NIGHT
     assert d.write_action is WriteAction.TURN_ON_AND_SET
 
@@ -210,7 +210,7 @@ def test_night_at_target_stops(base_snapshot: Snapshot) -> None:
         now=datetime(2026, 5, 27, 23, 0, tzinfo=UTC),
         ev_soc=80.0,
         target_night_soc=80.0,
-        last_desired_amps=16,
+        last_desired_amps=14,
     )
     d = compute_decision(s)
     assert d.desired_amps == 0
@@ -343,7 +343,7 @@ def test_solar_clamps_to_max_amps(base_snapshot: Snapshot) -> None:
         target_day_soc=80.0,
     )
     d = compute_decision(s)
-    assert d.desired_amps == 16
+    assert d.desired_amps == 14
 
 
 def test_negative_ev_consumption_treated_as_zero(base_snapshot: Snapshot) -> None:

tests/test_coordinator.py

@@ -351,4 +351,4 @@ async def test_service_call_failure_does_not_crash_tick(hass: HomeAssistant) ->
     assert result is not None
     assert result.sub_mode is SubMode.FORCE_MAX
     # Service-call failure is logged, not propagated; coordinator still records intent
-    assert coord._last_desired_amps == 16
+    assert coord._last_desired_amps == 14