Differences

This shows you the differences between two versions of the page.

--- battery_compatibility:lg_chem_resu [2017-07-16 08:14] – [Notes] mvader
+++ battery_compatibility:lg_chem_resu [2025-06-02 09:37] (current) – [Compatible Victron products] guy_stewart
@@ Line 1: / Line 1: @@
 ====== Victron & LG Chem Resu ======
-==== Compatible Victron products ====
+==== Compatibility ====
-The MultiPlus 48/3000/35. Not multiple in parallel or three-phase.
+**NOTE - This document is now End-of-Life and for archive purposes only.**
+LG no longer supports the Resu models that were previously compatible.
+The only Victron inverter/charger approved by LG for use with the Resu battery is the MultiPlus 48/3000/35. You are **not** able to use these in parallel or three-phase configurations.
+=== A GX device is required (either Color Control GX (CCGX) or the VENUS GX) ===
+It is essential to use the CAN-bus connection of the [[venus-os:start|GX device]] with the LG batteries for the keep-alive signal, communication of charge and discharge limits, error codes and state of charge.
+The minimum required firmware version for the [[https://www.victronenergy.com/panel-systems-remote-monitoring/color-control|Color Control GX]] is v2.15. It is highly recommended to use the latest firmware version on all connected devices, including CCGX/VENUS GX, Inverter/Charger and MPPTs. There are regular updates to improve performance and reliability.
-And always a [[https://www.victronenergy.com/panel-systems-remote-monitoring/color-control|Color Control GX]] is necessary in the system, since that has the canbus port which is used for the (required!) communication between the LG Resu battery and the Victron system.
 ==== Notes ====
@@ Line 11: / Line 20: @@
   * It can only be used in On-grid systems, for self-consumption. Not for off-grid systems.
   * Derating, based on the dynamic LG Resu charge- and discharge limits:
-    * Minimum CCGX version is v1.72
+    * Minimum CCGX version is v2.15
     * The derating mechanism is not very precise yet. In other words, do not expect a discharge limit of 30A to result in a precise discharge of 30A.
     * Actual charge- and discharge limits are visible in the Parameters page. See screenshot below.
+  * LG batteries Resu batteries may only be used with MPPT Solar Chargers with the VE.Direct port. The VE.Can MPPTs are not supported.
+  * LG battery policy is to only charge the battery to 97% or 98%. It is normal for the battery not to charge to 100%.
+==== GX device required ====
+To use the LG Chem Resu and Victron equipment, it is necessary to use a [[venus-os:start|GX device]] (eg CCGX or VenusGX). It takes care of sending the necessary canbus keep-a-live message to the LG Resu. Without it, the LG Resu will open its internal circuitbreaker after 10 minutes.
+Do not attempt firmware updates using the LG Chem battery for power until you can confirm that the battery is connected and showing on the [[venus-os:start|GX device]].
 ==== Wiring of communication cables ====
-To use the LG Chem Resu and Victron equipment, it is necessary to use a CCGX. It takes care of sending the necessary canbus keep-a-live message to the LG Resu. Without it, the LG Resu will open its internal circuit breaker after 10 minutes.
+Use the //VE.Can to CAN-bus BMS type B Cable//, part number ASS030720018. Plug the side which is labeled Battery BMS into the LG Chem Resu BMS. Plug the side labeled Victron VE.Can into the [[venus-os:start|GX device]].
-A special RJ-45 cable is necessary to connect the LG Resu to the CCGX. Pinout:
+Then, plug a [[https://www.victronenergy.com/accessories/ve-can-rj45-terminator|VE.Can terminator]] in the other VE.Can socket on the CCGX. Two VE.Can terminators are included with the package of the CCGX as an accessory, only one is used. Keep the other one as a spare.
-^ Function ^ VE.Can RJ-45 ^ LG Chem RJ-45 ^
+More information about the cable can be found in [[battery_compatibility:can-bus_bms-cable|its manual]].
-| GND      | Pin 3        | Pin 2         |
-| CAN-L	   | Pin 8        | Pin 5         |
-| CAN-H	   | Pin 7        | Pin 4         |
-Place a VE.Can terminator in the empty socket on the CCGX.
+Without properly connecting this cable, the battery will stop charging/discharging after several minutes. Also, the battery will not show up on the display of the CCGX.
 === Note on the latest LG Resu models (3.3, 6.5 and 10) ===
@@ Line 34: / Line 46: @@
 === General tab ===
-  - Enabled battery monitor
+  - Check "Enable battery monitor"
-  - Set the battery capacity to 50Ah times the number of battery modules.
   - Enter the battery capacity:
     - Resu 6.4 - 126 Ah
@@ Line 43: / Line 54: @@
     - Resu 6.5 - 126 Ah
     - Resu 10 - 189 Ah
+  - The other parameters ("State of charge when bulk finished" and "Charge efficiency") can be left to their default setting. They are not used in this setup.
 === Charger tab ===
@@ Line 48: / Line 60: @@
 | Battery type           | Lithium     | Lithium              |
 | Charge curve           | Fixed       | Fixed                |
-| Absorption voltage     | 56.8 V      | 57.7 V               |
+| Absorption voltage     | 56.8 V      | 57.0 V               |
-| Float voltage          | 56.7 V      | 57.6 V               |
+| Float voltage          | 56.7 V      | 57.0 V               |
 | Absorption time        | 1 Hr        | 1 Hr                 |
 Note: make sure to double check the float voltage after completing Assistants.
-=== Hub-4 Assistant ===
+=== ESS Assistant ===
 Select the fourth battery type:
@@ Line 61: / Line 73: @@
 Then:
   - Sustain voltage: 50V
-  - Do not change the dynamic cut-off values, they have already been set correctly after selecting the lithium battery type.
+  - The dynamic cut-off values will effect the depth of discharge you will cycle the battery. The default settings are very safe and conservative, but not optimised for full consumption of battery potential. If you wish to cycle the battery deeper, a flat dynamic cutoff value of 46V allows this system to discharge to the CCGX set SOC limit of 15%, and then a further self-discharge down to ~11% each night. This results in a reported voltage floor of 49.2V by the LG before charging resumes again.
-  - Same for the restart offset
+  - Leave the default restart offset
 ==== Color Control GX Configuration ====
-  * Enable the LG Battery Service in the CCGX. Menu path: //Settings -> Services -> CAN-bus BMS//. Note that this changes the function of a VE.Can port: it is not possible to connect both VE.Can products and an LG battery together.
+  * Select the //CAN-bus BMS (500 kbits/s)// CAN-profile in the CCGX. Menu path: //Settings -> Services -> CAN-profile//. Note that this changes the function of a VE.Can port: it is not possible to connect both VE.Can products and an LG battery together.
   * After properly wiring and setting up, the LG Resu will be visible as a battery in the device list:{{ :drafts:lg-resu.png?nolink | }}
@@ Line 88: / Line 99: @@
   - Restore the battery top cover again.
   - Switch the Multis/Quattros on in the CCGX menu. Normal operation should continue after the system has initialized.
 ===== DISQUS =====
 ~~DISQUS~~