From ce9027aba507c8c7b2958b1b392fed3ae3374983 Mon Sep 17 00:00:00 2001
From: Maschga <88616799+Maschga@users.noreply.github.com>
Date: Fri, 19 Jun 2026 20:48:05 +0200
Subject: [PATCH] RCT: add holdcharge battery mode  (#31041)

---
 meter/rct.go | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/meter/rct.go b/meter/rct.go
index 7feef4350..c64209923 100644
--- a/meter/rct.go
+++ b/meter/rct.go
@@ -188,6 +188,10 @@ func NewRCT(ctx context.Context, uri, usage string, batterySocLimits batterySocL
 					return m.conn.Write(rct.BatterySoCTargetMin, floatVal(batterySocLimits.MinSoc/100))
 				})
 
+				eg.Go(func() error {
+					return m.conn.Write(rct.PowerMngSocMax, floatVal(batterySocLimits.MaxSoc/100))
+				})
+
 				eg.Go(func() error {
 					return m.conn.Write(rct.PowerMngBatteryPowerExternW, floatVal(0))
 				})
@@ -197,6 +201,10 @@ func NewRCT(ctx context.Context, uri, usage string, batterySocLimits batterySocL
 					return m.conn.Write(rct.PowerMngSocStrategy, []byte{rct.SOCTargetInternal})
 				})
 
+				eg.Go(func() error {
+					return m.conn.Write(rct.PowerMngSocMax, floatVal(batterySocLimits.MaxSoc/100))
+				})
+
 				eg.Go(func() error {
 					return m.conn.Write(rct.BatterySoCTargetMin, floatVal(batterySocLimits.MaxSoc/100))
 				})
@@ -214,6 +222,19 @@ func NewRCT(ctx context.Context, uri, usage string, batterySocLimits batterySocL
 					return m.conn.Write(rct.PowerMngSocStrategy, []byte{rct.SOCTargetExternal})
 				})
 
+			case api.BatteryHoldCharge:
+				eg.Go(func() error {
+					return m.conn.Write(rct.PowerMngSocStrategy, []byte{rct.SOCTargetInternal})
+				})
+
+				eg.Go(func() error {
+					return m.conn.Write(rct.BatterySoCTargetMin, floatVal(batterySocLimits.MinSoc/100))
+				})
+
+				eg.Go(func() error {
+					return m.conn.Write(rct.PowerMngSocMax, floatVal(batterySocLimits.MinSoc/100))
+				})
+
 			default:
 				return api.ErrNotAvailable
 			}