Correct EG4 profile sizing 3->6 packs; keep 60A charge cap (improvement #2)

- eg4-lp4-v2.yaml: rationale updated 300Ah->600Ah/~30.7kWh; 120A combined is
  now ~0.2C. Charge current deliberately NOT raised to 80A: not clipping — at
  solar noon on a clear day (2026-06-24, ~5.8kW PV) the bank took only 71A of
  the 120A cap. Real harvest limiter is PV (5.8 of 14.4kW nameplate, suspected
  down strings), not the ceiling.
- REFERENCE: pack HA entity_ids are triple-prefixed
  (sensor.eg4_lifepower4_lifepower4_1_lifepower4_1_*) — discover, don't construct.

No setting values changed; documentation/accuracy only.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

.claude/skills/REFERENCE.md

@@ -56,8 +56,11 @@ slug and is inconsistent across commands, so you must use the real ids, e.g.:
 - device mode: `sensor.lvx6048_lvx6048_{1,2}_device_mode` (device slug `lvx6048`)
 - fault code:  `sensor.lvx6048_0{1,2}_lvx6048_{1,2}_fault_code` (slug `lvx6048_01`/`_02`)
 - PV/batt/load: `sensor.lvx6048_lvx6048_1_{mppt1_input_power,mppt1_input_voltage,battery_voltage,ac_output_active_power}`
-- EG4 packs follow the same doubling, e.g. `sensor.lifepower4_*`. When unsure, list
-  them: `curl -s -H "Authorization: Bearer $(cat ~/.config/ha/token)" $HA/api/states
+- EG4 packs are TRIPLE-prefixed (even worse), e.g.
+  `sensor.eg4_lifepower4_lifepower4_1_lifepower4_1_pack_current` — device slug
+  `eg4_lifepower4_lifepower4_1` + object `lifepower4_1_pack_current`. Always discover,
+  don't hand-construct. When unsure, list them:
+  `curl -s -H "Authorization: Bearer $(cat ~/.config/ha/token)" $HA/api/states
   | python3 -c 'import sys,json;[print(s["entity_id"]) for s in json.load(sys.stdin) if "lvx6048" in s["entity_id"]]'`
 Auth: reads a long-lived token from `~/.config/ha/token` (mode 600) or `$HA_TOKEN`
 — never on the command line, never hardcoded. Base URL `$HA_URL` else

LVX6048/lvx-flash/profiles/eg4-lp4-v2.yaml

@@ -1,6 +1,8 @@
 # LVX6048 settings profile — EG4 LifePower4 v2 LiFePO4 bank, open-loop.
 #
-# Designed for: 3× EG4 LP4 v2 100 Ah in parallel (300 Ah, ~15.4 kWh).
+# Designed for: 6× EG4 LP4 v2 100 Ah in parallel (600 Ah, ~30.7 kWh).
+# (Was 3 packs originally; 3 more added — commit 38ac9ca. Values below are
+#  unchanged and remain correct for 6 packs — they're only MORE conservative now.)
 # Apply identically to both inverters in a parallel pair:
 #   sudo systemctl stop powermon.service powermon2.service
 #   ./flash.py apply --device /dev/lvx6048-1 --profile profiles/eg4-lp4-v2.yaml --confirm
@@ -17,9 +19,14 @@
 #   cutoff       48.0 V = 3.000 V/cell — inverter hard shutdown floor (BMS still protects below)
 # Conservative off-grid policy: keep grid as a soft top-up, let solar do the bulk work.
 #
-# Current rationale (300 Ah bank):
-#   60 A/unit × 2 units = 120 A combined ≈ 0.4 C — well under bank's continuous spec
-#   30 A/unit MUCHGC keeps grid-charging conservative (60 A combined)
+# Current rationale (600 Ah bank):
+#   60 A/unit × 2 units = 120 A combined ≈ 0.2 C — very gentle on a 600 Ah bank.
+#   30 A/unit MUCHGC keeps grid-charging conservative (60 A combined).
+#   NOT raised to 80 A/unit (the enum max): charging is not clipping — at solar noon
+#   on a clear day (2026-06-24, ~5.8 kW PV) the bank drew only 71 A of the 120 A cap.
+#   The real harvest limiter is PV production (~5.8 kW seen vs 14.4 kW nameplate —
+#   the suspected down strings), not the charge ceiling. Revisit only if PV is
+#   restored and midday charge current is seen pinned at ~120 A below ~90% SoC.
 
 # enum: AGM | FLOODED | USER
 # USER required to enable the per-cell custom voltages below.