Differences

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--- battery_compatibility:redflow_zcell [2016-06-11 09:43] – [Charge profile] simonhackett
+++ battery_compatibility:redflow_zcell [2020-04-28 07:59] (current) – [For on-grid sites using ESS (not required off-grid)] simonhackett
@@ Line 1: / Line 1: @@
-====== Victron & Redflow ZCell ======
+====== Victron & Redflow ZBM2 / ZCell ======
-https://www.zcell.com/
+[[http://www.zcell.com|ZCell]] is a packaged bundle of the [[http://www.redflow.com|Redflow ZBM2 battery]] inside an external-rated enclosure, supplied with the Redflow CANbus BMS.
-Technical details here:
+The Redflow ZBM2 battery is a 48V 10kWh DC Zinc-Bromide hybrid flow battery that is installed in parallel-wired DC clusters. It is the worlds smallest commercial flow battery. It uses the Redflow CANbus BMS as the control and communications interface for the battery system.
-https://faq.zcell.com/content/1/11/en-us/what-are-the-technical-specifications-of-a-zcell-battery.html
-Note that the ZCell bundle has first been launched only available in Australia.
+An overview of the technical specifications of this battery are provided here:
-However, the underlying Redflow ZBM2 battery is available worldwide already.
+https://redflow.zendesk.com/hc/en-us/articles/360025493531-Technical-specification-overview-for-the-Redflow-ZCell-ZBM2-battery
+**Important** information about installing and configuring ZBM2 systems with Victron Energy products is provided here:
+https://redflow.zendesk.com/hc/en-us/articles/360025202052-Installation-guide-to-connecting-a-Redflow-battery-array-to-a-Victron-Energy-system
-The ZCell bundle (including external enclosure and Battery Management System unit) will be made available worldwide later (expected to be early in 2017)
 ==== Compatible Victron products ====
-  * All 48V Multis and Quattros.
+  * All 48V Multis and Quattros
-  * All 48V solar chargers
+  * All 48V solar chargers that are compatible with DVCC (all except the older 'vertical' shaped CANBus units)
-  * Adding a Color Control GX is recommended but not required
+  * Any GX unit running current firmware with DVCC enabled and using the CANBus interface.
+==== ZBM2 / ZCell Characteristics =====
+  * Low fire risk: No exothermic reaction if exposed to fire, and with water-based fluid electrolyte that is intrinsically fire-retardant
+  * Designed to be charged up to 100% SOC and discharged right down to 0% SOC (and zero volts) on a daily basis with no damage and while maintaining full energy cycle output capacity over the battery lifetime
-==== Charge profile =====
+==== ZBM2 / ZCell Configuration =====
-  - Charge voltage 57.6V (up to 50 Amps per battery, and current per battery self-limits if you limit the voltage)
+  * Clusters of multiple Redflow batteries are automatically controlled using the Redflow BMS to orchestrate their discharge cycles and maintenance cycles for maximum energy availability and maximum operating efficiency and effectiveness.
-  - Linear charge all the way from empty to full (all charge phases are the same - same ‘flat’ voltage).
+  * Interface to the GX from the Redflow BMS using CANBus just like any other modern 'smart' battery
-  - No need for any sort of battery ‘conditioning’ cycling at all
+  * Always turn on DVCC mode in the GX to allow voltage and current settings to be controlled via CANBus by the BMS (no need to set any battery voltage or current limits in VE.Configure)
-Charger settings:
+ ==== For on-grid sites using ESS (ESS is not required off-grid)  =====
-  - Set both absorption and float voltage to 57.6V
-  - disable storage mode.
-  - absorption time and bulk protection are not relevant / not required
-  - using Assistants, such as the Hub-3 or Hub-4 Assistant, is possible but not required.
-Tricks and traps:
+  *  Select the Redflow ZCell battery type in the ESS Assistant when setting it up (available in ESS Assistant versions since April 2020)
-  * The Redflow ZCell battery is designed to be charged up to 100% SOC and discharged right down to 0% SOC
+  * Use the ESS mode "Optimised (without BatteryLife)" to allow full-depth discharge of the battery regularly
-  * The default cutoff voltage in the battery is 36V. So you can configure the disconnect voltage on a Multi or Quattro right down to the minimum allowed to get all the energy out of each cycle
+  * On single battery setups the ESS 'MinSoC' must be set to 0% to avoid stalling the ZCell maintenance cycle.
-  * There are some assistants that will stop operating a long way above 0% SOC to 'protect' the battery
-  * These 'protections' can and should be disabled for the ZCell to get the most out of it. For instance:
+===== DISQUS =====
-    * If you use Hub-4, turn off the 'Battery Life' flag under Settings->Wired AC Sensor->Grid Meter or Hub-4 will stop with lots of energy left still in the battery
+~~DISQUS~~
-    * If you use Hub-3, use 'custom' configuration when setting it up, and change the SOC cutoff limits to 1% and 2% (very low) otherwise (again) the defaults (much higher SOC stop values) will stop Hub-3 from using a large amount of the battery energy that could otherwise be accessed
-===== Color Control GX =====
-Follow [[https://faq.zcell.com/content/10/55/en-us/enabling-state_of_charge-update-using-modbus_tcp-with-a-ccgx.html|this procedure on the ZCell website]] to show the ZCell SOC on the Color Control GX.
-Also see this other FAQ item on the ZCell website:
-https://faq.zcell.com/content/10/54/en-us/automatic-start-for-a-multiplus-connected-to-a-powered_down-ccgx.html
-The Color Control GX does not yet have the option to read and show any other ZCell parameters. This is intended to be added later.
-===== Disqus =====
-~~DISQUS~~