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

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- 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>
This commit is contained in:
noise
2026-06-24 12:25:48 -04:00
parent 56b2cc2bf1
commit b5b69f95c1
2 changed files with 16 additions and 6 deletions
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15
LVX6048/lvx-flash/profiles/eg4-lp4-v2.yaml
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@@ -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.