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--- ess:design-installation-manual [2019-01-22 10:16] – external edit 127.0.0.1
+++ ess:design-installation-manual [2019-01-23 06:09] – [9. FAQ] guy_stewart
@@ Line 777: / Line 777: @@
 A bit more detail with reference to selected modes:
-In __Keep batteries charged mode__ no power comes from the batteries to power loads unless the grid fails. PV power, when available, will always be used to power the loads.
-In __Optimize mode__ whether the load is great or small power will be supplied by the batteries. The Grid meter will be kept at 0W until either the battery is drained or the load exceeds the inverter's capacity.
+  * In __Optimize mode__ whether the load is great or small power will be supplied by the batteries. The Grid meter will be kept at 0W until either the battery is drained or the load exceeds the inverter's capacity.
+  * In __Keep Batteries charged mode__ no power comes from the batteries to power loads unless the grid fails. PV power, when available, will be used to power the loads. There is a known issue when using “Keep batteries charged” mode that can result in less production from the MPPT solar charger when batteries are full. This only occurs when [[https://www.victronenergy.com/live/ccgx:start#dvcc_-_distributed_voltage_and_current_control|DVCC]] is disabled, and the “Feed-in excess solar charger power” setting disabled.
+The current options to work around this "Keep Batteries charged" issue are:
+  * Enable [[https://www.victronenergy.com/live/ccgx:start#dvcc_-_distributed_voltage_and_current_control|DVCC]] (check CCGX manual to see if that is allowed for the used battery type, make & model!)
+  * Set the mode to Optimize, and set the minimum SOC to 100%. Note that with this workaround there is still a difference with the “Keep batteries charged” mode: the system will not recharge the battery from the grid after a power outage
 === Q2: I've enabled optimize mode, but do not see grid-power being used to charge the battery? ===
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 The same applies to other solutions where the wiring is not protected against accidental removing, for example a simple cable with end-user removable plug, such as a portable power supply.
 ===== DISQUS =====
 ~~DISQUS~~