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--- battery_compatibility:discover [2025-12-01 19:22] – [Victron Energy and Discover AES Rackmount Batteries] dettingale
+++ battery_compatibility:discover [2026-10-10 08:31] (current) – HELIOS ESS: model 52-48-16000; direct path uses the Victron VE.Can to CAN-bus BMS Type A cable with a terminator; patch-cable note for LYNK II only; section 5 numbering guy_stewart
@@ Line 13: / Line 13: @@
 ===== 1. Introduction =====
-The Discover LiFePO<sub>4</sub> battery includes a Battery Management System (BMS) that interfaces with the Victron GX device and can support multiple batteries connected in parallel.
+The Discover LiFePO<sub>4</sub> battery features a Battery Management System (BMS) that interfaces with the Victron GX device and supports multiple batteries connected in parallel.
-These instructions provide information about integrating Discover Lithium batteries with Victron Energy devices in a closed-loop configuration using the LYNK II Communication Gateway set to communicate with Victron devices. The AES RACKMOUNT batteries can be used in an Energy Storage System (ESS) for self-consumption, Grid backup, and Off-grid applications.
+These instructions provide information about integrating Discover Lithium batteries with Victron Energy devices in a closed-loop configuration. Based on which battery you are using, you may or may not require the LYNK II Communication Gateway. The AES RACKMOUNT and batteries can be used in an Energy Storage System (ESS) for self-consumption, Grid backup, and Off-grid applications.
 Configuration, installation, service, and operating tasks should only be performed by qualified personnel in consultation with local authorities having jurisdiction and authorized dealers. Qualified personnel should have training, knowledge, and experience in:
@@ Line 62: / Line 62: @@
   * AES RACKMOUNT 48-48-5120 / 48-48-5120-H
+  * HELIOS ESS 52-48-16000
 **Victron Products**
@@ Line 84: / Line 85: @@
 **Discover Power Reference Documents:**
-  * 808-0039 48-48-5120 AES RACKMOUNT Data Sheet
+  * 808-0040 48-48-5120-H AES RACKMOUNT Data Sheet
-  * 808-0040 48-48-5120-H AES RACKMOUNT (Heated) Data Sheet
   * 805-0043 AES RACKMOUNT Installation and Operation Manual
+  * 805-0090 HELIOS ESS Installation and Operation Manual
   * 805-0033 LYNK II Installation and Operation Manual
   * 805-0040 LYNK II Victron (Solar) Manual
@@ Line 114: / Line 115: @@
 Battery charge and discharge rates are managed automatically by the Discover Lithium battery and Victron Energy device. Using large solar arrays with battery banks that are too small can exceed the operating limits of the battery to charge and possibly lead to the BMS triggering over-current protection. Either curtail the charging below the operational limit of installed batteries, or the battery capacity must accept the maximum charge current of the system. This value is derived by adding the charge capacities of all inverter-chargers and solar charge controllers in the system. Additionally, battery peak capacity must support the surge requirements of the load attached to the inverter. Match all inverter peak power values with the sum of all battery peak battery current values.
-^ 120 V Models ^ Inverter Peak ^ Max Continuous Discharge ^ Max Continuous Charge ^ AES RACKMOUNT Min 48-48-5120/ 48-48-5120-H ^
+^ 120 V Models ^ Inverter Peak ^ Max Continuous Discharge ^ Max Continuous Charge ^ AES RACKMOUNT Min 48-48-5120/ 48-48-5120-H ^ HELIOS ESS 52-48-16000 ^
-^ Quattro 48/3000/35 <sup>1</sup> | 133 Adc | 54 Adc | 35 Adc | 1 |
+^ Quattro 48/3000/35 <sup>1</sup> | 133 Adc | 54 Adc | 35 Adc | 1 | 1 |
-^ Quattro 48/5000/70 <sup>2</sup> | 220 Adc | 88 Adc | 70 Adc | 1 <sup>3</sup> |
+^ Quattro 48/5000/70 <sup>2</sup> | 220 Adc | 88 Adc | 70 Adc | 1 <sup>3</sup> | 1 |
-^ Quattro 48/10000/140 <sup>4</sup> | 434 Adc | 174 Adc | 140 Adc | 2 <sup>3</sup> |
+^ Quattro 48/10000/140 <sup>4</sup> | 434 Adc | 174 Adc | 140 Adc | 2 <sup>3</sup> | 2 |
-^ MultiPlus-II 48/3000/35 <sup>5</sup> | 121 Adc | 53 Adc| 35 Adc | 1 |
+^ MultiPlus-II 48/3000/35 <sup>5</sup> | 121 Adc | 53 Adc| 35 Adc | 1 | 1 |
-^ MultiPlus-II 48/5000/70 <sup>6</sup> | 195 Adc | 87 Adc| 70 Adc | 1 |
+^ MultiPlus-II 48/5000/70 <sup>6</sup> | 195 Adc | 87 Adc| 70 Adc | 1 | 1 |
 <sup>1</sup> Calculated based on max 6000W at 120 VAC peak output, 2400W at 120VAC continuous output, efficiency 94.0 %, and 35A DC max charging, as published in Victron Data Sheet as of 24-05-01.
@@ Line 133: / Line 134: @@
-^ 230 V Models ^ Inverter Peak ^ Max Continuous Discharge ^ Max Continuous Charge ^ AES RACKMOUNT Min 48-48-5120/ 48-48-5120-H ^
+^ 230 V Models ^ Inverter Peak ^ Max Continuous Discharge ^ Max Continuous Charge ^ AES RACKMOUNT Min 48-48-5120/ 48-48-5120-H ^ HELIOS ESS 52-48-16000 ^
-^ Quattro 48/5000/70 <sup>1</sup> | 220 Adc | 88 Adc | 70 Adc | 1 <sup>*2</sup>|
+^ Quattro 48/5000/70 <sup>1</sup> | 220 Adc | 88 Adc | 70 Adc | 1 <sup>*2</sup>| 1 |
-^ Quattro 48/8000/110 <sup>3</sup>| 347 Adc | 139 Adc| 110 Adc | 2 |
+^ Quattro 48/8000/110 <sup>3</sup>| 347 Adc | 139 Adc| 110 Adc | 2 | 1 |
-^ Quattro 48/10000/140 <sup>4</sup>| 434 Adc | 174 Adc | 140 Adc | 2 <sup>2</sup>|
+^ Quattro 48/10000/140 <sup>4</sup>| 434 Adc | 174 Adc | 140 Adc | 2 <sup>2</sup>| 2 |
-^ Quattro 48/15000/200 <sup>5</sup>| 542 Adc | 260 Adc| 200 Adc | 3 |
+^ Quattro 48/15000/200 <sup>5</sup>| 542 Adc | 260 Adc| 200 Adc | 3 | 1 |
-^ Quattro-II 48/5000/70 <sup>6</sup>| 195 Adc | 87 Adc| 70 Adc | 1 |
+^ Quattro-II 48/5000/70 <sup>6</sup>| 195 Adc | 87 Adc| 70 Adc | 1 | 1 |
-^ MultiPlus 48/2000/25 <sup>7</sup>| 77 Adc | 35 Adc | 25 Adc | 1 |
+^ MultiPlus 48/2000/25 <sup>7</sup>| 77 Adc | 35 Adc | 25 Adc | 1 | 1 |
-^ MultiPlus 48/3000/35 <sup>8</sup>| 132 Adc | 53 Adc| 35 Adc | 1 |
+^ MultiPlus 48/3000/35 <sup>8</sup>| 132 Adc | 53 Adc| 35 Adc | 1 | 1 |
-^ MultiPlus 48/5000/70 <sup>9</sup>| 219 Adc |88 Adc |77 Adc | 1 <sup>2</sup>|
+^ MultiPlus 48/5000/70 <sup>9</sup>| 219 Adc |88 Adc |77 Adc | 1 <sup>2</sup>| 1 |
-^ MultiPlus-II (GX) 48/3000/35 <sup>10</sup>| 121 Adc | 53 Adc| 35 Adc | 1 |
+^ MultiPlus-II (GX) 48/3000/35 <sup>10</sup>| 121 Adc | 53 Adc| 35 Adc | 1 | 1 |
-^ MultiPlus-II (GX) 48/5000/70 <sup>11</sup>| 195 Adc | 87 Adc| 70 Adc | 1 |
+^ MultiPlus-II (GX) 48/5000/70 <sup>11</sup>| 195 Adc | 87 Adc| 70 Adc | 1 | 1 |
-^ MultiPlus-II 48/8000/110 <sup>12</sup>| 329 Adc | 140 Adc | 110 Adc | 2 |
+^ MultiPlus-II 48/8000/110 <sup>12</sup>| 329 Adc | 140 Adc | 110 Adc | 2 | 1 or 2<sup>19</sup> |
-^ MultiPlus-II 48/10000/140 <sup>13</sup>| 391 Adc | 174 Adc | 140 Adc | 2 |
+^ MultiPlus-II 48/10000/140 <sup>13</sup>| 391 Adc | 174 Adc | 140 Adc | 2 | 1 or 2<sup>19</sup> |
-^ MultiPlus-II 48/15000/200 <sup>14</sup>| 592 Adc | 263 Adc | 200 Adc | 3 |
+^ MultiPlus-II 48/15000/200 <sup>14</sup>| 592 Adc | 263 Adc | 200 Adc | 3 | 2 |
-^ Multi RS Solar 48/6000 Dual Tracker <sup>15</sup>| 199 Adc| 117 Adc| 100 Adc | 2 |
+^ Multi RS Solar 48/6000 Dual Tracker <sup>15</sup>| 199 Adc| 117 Adc| 100 Adc | 2 | 1 |
-^ EasySolar-II 48/3000/35 MPPT 250/70 GX <sup>16</sup>| 121 Adc | 53 Adc| 35 Adc | 1 |
+^ EasySolar-II 48/3000/35 MPPT 250/70 GX <sup>16</sup>| 121 Adc | 53 Adc| 35 Adc | 1 | 1 |
-^ EasySolar-II 48/5000/70 MPPT 250/100 GX <sup>17</sup>| 195 Adc | 87 Adc| 70 Adc | 1 |
+^ EasySolar-II 48/5000/70 MPPT 250/100 GX <sup>17</sup>| 195 Adc | 87 Adc| 70 Adc | 1 | 1 |
 <sup>1</sup> Calculated based on max 10000W at 230 VAC peak output, 4000W at 230VAC continuous output, efficiency 95.0 %, and 70A DC max charging, as published in Victron Data Sheet as of 24-05-01.
@@ Line 185: / Line 186: @@
 <sup>17</sup> Calculated based on max 9000W at 230 VAC peak output, 4000W at 230VAC continuous output, efficiency 96.0 %, and 100A DC max charging, as published in Victron Data Sheet as of 24-05-01.
+<sup>18</sup> Discover HELIOS ESS 52-48-16000 Battery, Peak Power: 300 A RMS (15 seconds), 200 A DC Continuous Charge/Discharge, as published in Discover HELIOS ESS Installation and Operation Manual (805-0090 Rev G).
-^ 277 V Models ^ Inverter Peak ^ Max Continuous Discharge ^ Max Continuous Charge ^ AES RACKMOUNT Min 48-48-5120/ 48-48-5120-H ^
+<sup>19</sup> HELIOS ESS supports the maximum continuous charge and discharge currents from this inverter. To use one battery, limit the heavy loads that are active at any time on the system. If the peak current of loads on the circuit will push the inverter and batteries to their maximum limits, consider increasing the number of batteries.
-^ Quattro 48/15000/200 <sup>1</sup>| 542 Adc | 260 Adc | 200 Adc | 3 |
+^ 277 V Models ^ Inverter Peak ^ Max Continuous Discharge ^ Max Continuous Charge ^ AES RACKMOUNT Min 48-48-5120/ 48-48-5120-H ^ HELIOS ESS 52-48-16000 ^
+^ Quattro 48/15000/200 <sup>1</sup>| 542 Adc | 260 Adc | 200 Adc | 3 | 2 |
 <sup>1</sup> Calculated based on max 25000W at 277 VAC peak output, 12000W at 277VAC continuous output, efficiency 96.0 %, and 200A DC max charging, as published in Victron Data Sheet as of 24-05-01.
@@ Line 195: / Line 200: @@
 ===== 4 Configuring Discover Products =====
-==== 4.1 Configuring the LYNK II ====
+==== 4.1 Configuring the HELIOS ESS ====
+{{:battery_compatibility:helios-front.png?direct&600|}}
+The HELIOS ESS battery supports closed-loop communication using two different methods:
+. Direct (without LYNK II Gateway)
+. LYNK II Gateway
+The HELIOS ESS supports direct closed-loop communication with a Victron GX device through the Victron VE.Can to CAN-bus BMS Type A cable.
+{{:battery_compatibility:ve-can-to-can-bus-bms-type-a-cable.png?direct&600|Victron VE.Can to CAN-bus BMS Type A cable}}
+Use the [[battery_compatibility:can-bus_bms-cable|Victron VE.Can to CAN-bus BMS Type A cable]] for the direct connection. Its pin-out matches the HELIOS ESS COM2 port: COM2 pins 4 (CAN-H), 5 (CAN-L) and 6 (GND) connect to VE.Can pins 7, 8 and 3. A standard straight patch cable does not work for this connection.
+. Plug the cable end labelled "Battery BMS CAN-type A" into the HELIOS ESS COM2 port. Plug the end labelled "Victron VE.Can" into a VE.Can port of the Victron GX device. Insert a VE.Can terminator in the other VE.Can port of the GX device.
+{{:battery_compatibility:victron-nw-connect.png?direct&600|}}
+. Using a touch screen or other user interface of the GX device, set the VE.Can port and CAN-Bus BMS communication rate to 500 kbit/s to match the communication speed on the HELIOS ESS battery.
+   * **Device List > Settings > Services > VE.Can port > CAN-bus profile**
+   * Select **CAN-bus BMS (500 kbit/s)**
+. Return to the Device List, and the Discover Lithium Battery should now appear as one of the devices.
+. During normal operation, the battery’s charge parameter limits are set by the BMS and communicated by the Victron GX device to the inverter-charger and MPPT. To optimize the performance of a Victron system, manually set the following DVCC menu items using the Victron GX device and reboot the system.
+If communication is interrupted between the BMS and Victron inverter-charger, the Victron inverter-charger stops charging until communication is re-established.
+For the DVCC settings in step 4, go to section 5.2.1 Configurable Closed-Loop Settings. The 250 kbit/s setting and the cable note in section 5.2 apply to the LYNK II path only.
+==== 4.2 Configuring the LYNK II ====
 **LYNK II: Setting Up Jumpers**
-Jumpers configure termination for the LYNK Network and the CAN Out pin assignments. Follow the instructions in the LYNK II Installation and Operation Manual (805-0033) for accessing and configuring the header board with jumpers.
+Jumpers configure termination for the LYNK Network and the CAN Out pin assignments. Follow the instructions in the LYNK II Installation and Operation Manual (805-0033) to access and configure the header board using jumpers.
 Detailed pin configurations are included in the LYNK II manual and are repeated here for convenience.
@@ Line 206: / Line 244: @@
 **NOTE:**
   * Disconnect power and all LYNK II Communication Gateway connections before configuring header boards and jumpers.
-  * The LYNK II Communication Gateway terminates the LYNK Network by default. Unless instructed, do not remove the termination jumper inside the LYNK II Communication Gateway.
+  * The LYNK II Communication Gateway terminates the LYNK Network by default. Please don't remove the termination jumper inside the LYNK II Communication Gateway unless instructed.
@@ Line 238: / Line 276: @@
-==== 4.2 Connecting LYNK II to the VE.CAN Network ====
+==== 4.3 Connecting LYNK II to the VE.CAN Network ====
 **Setting up the Battery**
@@ Line 349: / Line 387: @@
-==== 5.1 Setting Up Closed-Loop Configuration ====
+==== 5.2 Setting Up Closed-Loop Configuration (LYNK II) ====
 Refer to the latest Discover Energy Systems documentation for battery values and the latest Victron documentation for menu navigation and details on the setup procedure.
@@ Line 372: / Line 410: @@
-**NOTE:** If **Discover AES** does not appear on the Device List, confirm that the CAT5e or higher communication cable is a normal patch type, not a cross-over type. Use manufactured cables to avoid bad crimps and reduce the risk of a poor connection.
+**NOTE:** This note applies to the LYNK II path only. If **Discover AES** does not appear on the Device List, confirm that the CAT5e or higher communication cable from the LYNK II CAN Out port is a normal patch type, not a cross-over type. Use manufactured cables to avoid bad crimps and reduce the risk of a poor connection. For the direct HELIOS ESS connection (section 4.1), use the Victron VE.Can to CAN-bus BMS Type A cable. A patch cable does not work on that path.
-=== 5.1.1 Configurable Closed-Loop Settings ===
+=== 5.2.1 Configurable Closed-Loop Settings ===
 During regular operation, the BMS sets the battery’s charge parameter limits, which the Victron GX device communicates to the inverter-charger and MPPT.
@@ Line 403: / Line 441: @@
-=== 5.1.2 Saving the Configurable Closed-Loop Settings ===
+=== 5.2.2 Saving the Configurable Closed-Loop Settings ===
 **Device List > Settings > General > Reboot?**