battery_compatibility:pylontech_phantom
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battery_compatibility:pylontech_phantom [2019-01-22 10:16] – external edit 127.0.0.1 | battery_compatibility:pylontech_phantom [2019-06-21 13:43] – [My system only charges the battery to 52V] iburger | ||
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- | ====== Victron & Pylontech | + | ====== Victron & Pylontech |
The combination of Victron products with Pylontech lithium batteries has been tested and certified by the Victron and Pylontech R&D departments. | The combination of Victron products with Pylontech lithium batteries has been tested and certified by the Victron and Pylontech R&D departments. | ||
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{{: | {{: | ||
- | ^ Battery ^ | + | ^ Battery ^ |
- | | Module capacity| | + | | Module capacity| |
=== 1.1 Offgrid, Backup and Energy Storage Systems are possible === | === 1.1 Offgrid, Backup and Energy Storage Systems are possible === | ||
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- | === 1.2 A Venus-device is required, eg Color Control GX (CCGX) or Venus GX (VGX) === | + | === 1.2 A GX-device is required, eg Color Control GX (CCGX) or Venus GX (VGX) === |
It is essential to use the CAN-bus connection of the [[venus-os: | It is essential to use the CAN-bus connection of the [[venus-os: | ||
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The minimum required firmware version for the [[https:// | The minimum required firmware version for the [[https:// | ||
- | In grid connected systems, advanced control functions are configurable in the ESS settings on the [[venus-os: | ||
- | |||
- | In off-grid systems, the system control functions from the Pylontech Battery Management System (BMS) are built into the latest version of the [[venus-os: | ||
=== 1.3 All 48V Multi, MultiPlus, MultiGrid and Quattro are compatible === | === 1.3 All 48V Multi, MultiPlus, MultiGrid and Quattro are compatible === | ||
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The batteries will automatically detect and link to each other, no adjustment of dip switches or software changes are necessary on the batteries. | The batteries will automatically detect and link to each other, no adjustment of dip switches or software changes are necessary on the batteries. | ||
- | The battery with the empty link port 0 is the master battery. | + | The battery with the empty link port 0 is the master battery. |
+ | You must use the //VE.Can to CAN-bus BMS type B Cable//, part number ASS030720018, | ||
+ | |||
+ | Plug the type B cable with the side which is labeled Battery BMS into the Pylontech CAN port of the master battery. Plug the side labeled Victron VE.Can into the [[venus-os: | ||
Then, plug a [[https:// | Then, plug a [[https:// | ||
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The Pylontech manual contains additional diagnostic and troubleshooting information, | The Pylontech manual contains additional diagnostic and troubleshooting information, | ||
- | ===== 9. FAQ ===== | ||
- | **The maximum charge and discharge current is limited to 25A, but the data sheet tells me the maximum is 100A.** | + | ===== 9. FAQ and Known Issues===== |
+ | |||
+ | ==== The maximum charge and discharge current is limited to 25A, but the data sheet tells me the maximum is 100A. ==== | ||
The maximum current is limited to keep the battery healthy and reach the 10 year guarantee. In off-grid, the inverter can draw more than the 25A limit to run the loads, make sure you have sufficient batteries installed to keep the load per battery around this limit. | The maximum current is limited to keep the battery healthy and reach the 10 year guarantee. In off-grid, the inverter can draw more than the 25A limit to run the loads, make sure you have sufficient batteries installed to keep the load per battery around this limit. | ||
- | **After charging the battery the charge current often changes between 0A and 25A.** | + | ==== After charging the battery the charge current often changes between 0A and 25A. ==== |
This is caused by cell balancing inside the battery. This happens with new batteries and after a deep discharge. | This is caused by cell balancing inside the battery. This happens with new batteries and after a deep discharge. | ||
+ | ==== My system isn't charging at the rated capacity, or my PV is shutting down ==== | ||
+ | Pylontech' | ||
+ | You can confirm if this is affecting your installation be entering the Pylontech Battery menu on your Venus-device, | ||
+ | |||
+ | ==== My system only charges the battery to 52V ==== | ||
+ | When DVCC is enabled, the battery (via the CAN-bms) is responsible for the charge voltage. The Pylontech battery requests a charge voltage of 53.2V. We have however found that in practice this is too high. | ||
+ | |||
+ | The Pylontech battery has 15 cells in series, so 53.2V equates to 3.55V per cell. This is very highly charged and makes the system prone to go overvoltage. | ||
+ | |||
+ | It should also be noted that a LiFePO4 cell stores very little additional energy above 3.45V. | ||
+ | |||
+ | For this reason we opted to override the BMS and cap the voltage at 52V. This sacrifices almost none of the capacity and greatly improves the stability of the system. | ||
+ | |||
+ | ==== The battery won't charge to 100% ==== | ||
+ | Also see the question above. The state of charge of the battery is estimated based on the overall voltage and on how well balanced the internal cells are. Because we cap the battery voltage at 52V, the state of charge will sometimes rise very slowly once it reaches the mid-90s. This is normal and usually resolves over time. | ||
===== 10. Further Information ===== | ===== 10. Further Information ===== | ||
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===== DISQUS ===== | ===== DISQUS ===== | ||
~~DISQUS~~ | ~~DISQUS~~ | ||
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battery_compatibility/pylontech_phantom.txt · Last modified: 2023-11-13 14:41 by guy_stewart