Version history

2.16.11 (2022-01-11) beta

  • SMA now has an “alternative” entry via another library (test)
  • Interface changed to day/night scheme – please report discrepancies
  • Varta access did get wrong keywords

2.16.10 (2022-01-04)

  • happy new year!
  • found a random bug causing the app to hang when the network connection changed

2.16.9 (2021-12-28) beta

  • fixed possible (rare) crash at smartphone startup, and while entering charge statistics

2.16.8a (2021-12-27)

  • If the network detection was a bit too slow and the app was not running all the time, the “historic readout” thread for the charge amount calculation went nowhere, resulting in strange “summaries” of the daily charge amounts (thanks Markus)

2.16.8 (2021-12-27)

  • Timing issue could have caused a crash at startup time when a device access failed (thanks, Harald)
  • the emlog module did always use the PV data, not the EM data (if available) (thank you, Markus)
  • fixed crash in the widget (sorry, Torsten)

2.16.7 (2021-12-21)

  • Screensaver did show “PV” icons in horizontal mode (thank you, Markus)
  • the emlog module did always use the PV data, not the EM data (if available) (thank you, Markus)
  • fixed crash in the widget (sorry, Torsten)

2.16.6 (2021-12-19)

  • Removed error message in screensaver if there was no PV surplus device set up (thank you, Markus)

2.16.5 (2021-12-18)

  • fixed crash in screensaver (thank you, Markus)
  • fitted widget to reflect the same kind of information as the notification (that is, power (W) instead of current (A))

2.16.3 (2021-12-14)

  • added 500 W to the PV support values (thanks, Klaus)
  • fixed WebDAV upload for synology NAS (error 403 when uploading to an existing file) (thanks, Vittorio)
  • redesign of the screensaver
  • fixed problem with spaces in WebDAV URL (for Synology)
  • fixed rare crash in go-eCharger code
  • improved performance in go-eCharger code

2.16.0 (2021-11-24)

  • Varta home batteries supported
  • fixed problem in car database, which didn’t remember car type and plug-in simulation values (overwrote them with wrong ones at next call)
  • app did use the “min charging current” settings from the go-e app, which could have caused confusion
  • small design gimmicks (tabs are now better laid out)
  • got annoyed about poor go-eCharger-docu and opened 3 issues
  • cloud bridging now possible up to 6 hours (for weak solar systems)
  • go-e option: “cable unlock on voltage loss” added
  • Dropbox upload of debug log file fixed (since Dropbox API V2)
  • communication log introduced for overview of communication with devices
  • phoenix, wallbe, walli, E3/DC: if DIP switch 1 was not set, the cable current limit was specified with 1 A by the controller, which resulted in the app having only 6 A in the selection. For safety reasons, this should actually be set.
  • If an error occurred with Speedport (SMA), the connection could be lost.
  • Error in the setting of the “plugging simulation” of the go-eCharger V3, which caused that the charge possibly did not restart.
  • new “PV/Grid” selection page with grouping by type
  • Fronius PV: Setting the IP address was not possible since August.

2.15.10 (2021-10-29)

  • the sums in the accounting list were not updated when new values were available until next time the activity was started
  • SmartWB: does now save its charging log into the database, so the accounting log is available
  • go-e Extras: go-e response time average and standard deviation
  • theming update to have a better contrast
  • repaired charge energy group’s bar graph (was circle, should have been bar)
  • go-e V3: adaptation to firmware 051.8
  • go-e V3: removed wrong warning about HTTP2 not being enabled (fix below did not always work)

2.15.9a-f (2021-10-17)

  • Keba: Corrected Date detection for charging history
  • possibly fixed crash happening sometimes with tabbed pages (Android issue)
  • go-e V3: removed wrong warning about HTTP2 not being enabled
  • PV-Daten are now being displayed in the chart even when the surplus modeis not active
  • added SolarEdge with Commercial Gateway (LCD)

2.15.9 (2021-10-14)

  • Test: “Smartmeter” Solarautonomie Energiemonitor
  • Test: Inverter: Huawei (current Firmware)
  • personalized “lifelong” subscription for devices without Play Store
  • go-e V3 API test phase (1p/3p switching, car wakeup, Access Control (open/wait) support)
  • optimized startup (devices connect much faster)
  • powerfox query interval has been changed to 15 seconds – 5 seconds were too little (maybe they changed something on the server?)

2.15.5 (2021-09-08)

  • Fronius site info had battery sign upside down (2021-09-01: taken out again – the Fronius doc has an error here!)
  • 2 other crashes fixed (in car and wallbox database).
  • Car and/or go-e V3: If the car reacts very slow to the change of the charging current, or the switch on is delayed by the new go-e V3, it could cause oscillations (thanks for the patience, Oliver – a tough one to find, the Corsa needs a close minute at switch on with the new go-e).
  • If you don’t have a home battery and cloud bypass, the inrush current is now 6.5A instead of 7 if the wallbox allows intermediate values (see 2.14.10)
  • Fronius with home battery: Asynchronous values could cause the PV control to “oscillate” (thanks for the patience, Oliver!).

2.15.4 (2021-08-25)

  • Wallbox list: fixed crash when deleting the current (selected) wallbox

2.15.3 (2021-08-22)

  • Speedwire: When a network error occurred with Android before Nougat, there was a crash (Java version incompatibility).
  • Fronius inverter: could post PV power as grid export, which of course is not the point.

2.15.2 (2021-08-20)

  • Fronius patch

2.15.1 (2021-08-19)

  • small improvements in chart (better legend, …)
  • small text improvements in the settings
  • fixed problems with incomplete Wallbox data – sorry, that was a bad bug!

2.15.0 (2021-08-18)

  • Cloud devices (SolarEdge Cloud, Powerfox) may have triggered a “No device defined…” – thanks Andreas
  • SolarEdge Cloud returned its data (sometimes?) with “kW” unit, thus these were wrong by a factor of 1000
  • “Boost” values are now permanently stored (but are only valid on the same day)
  • fix for the missing fix of go-e (
  • Pages for editing car and wallbox lists: Lists are no longer sorted because Android’s data adapter can’t handle renaming
  • fixed crash on OpenWB interface
  • go-eCharger: assumes “dws” has the old unit “decawatt-second” again. In case of charging quantity errors, please make sure that (at least) firmware 051.1 is installed in the wallbox.
  • Keba: Initially, the polling frequency of the wallbox could have been too high, so messages may have been lost at the beginning.
  • Sometimes the contact to the wallbox was not there and must first be re-established because an object destroyed itself internally late and thus cut the connection until the app eventually “caught” again
  • Keba: Without PV system, it could happen that status updates of the wallbox did not “come through”.
  • Keba: Currents below 200 mA are now considered “not present” – previously the limit was 1 A and when charging was started or the car was almost full, the current of one or two phases was sometimes below this limit, resulting in the wrong number of phases being displayed
  • Keba: Update issues due to “intermittent” status packets
  • Sun, Fronius Inverter: using a new “serialized” API for better control over HTTP queries to get rid of timing issues (here: Fronius on parallel queries)
  • Remaining charge time in PV mode now shows minimum/maximum time
  • SimpleWB/EVSE: sometimes was not switched off correctly.

2.14.10 (2021-07-22)

  • PV surplus: if you don’t have a home battery, or the cloud override is turned off, the initial current is set 1 A higher than the minimum current, so that this hysteresis does not initially cause charge on-off due to light cloud cover.
  • Charge boost: If a home battery is present, it can be used for faster charging until it reaches a minimum charge level (10, 20, … 50%).
  • SMA Energy Meter reverted to code of 23.05., because the code was more stable (thanks, Ernst)
  • fixed several bugs and crashes
  • go-e now has a decimal place in the phase current overview

2.14.9 (2021-06-25)

  • Wallbox Heidelberg Energy Control” via the “wbec” project by steff393: – super!
  • Inverter SOLARWATT
  • Inverter Kostal Piko (the old ones, Bj until 2018).
  • If you had set a “shutdown before 100% SoC” and the charge reference was way above 16A, but the car couldn’t charge that much because of a wallbox shutdown, then it shut down “unmotivated”. Now the reference value is the minimum of the set point and 16A. Thanks Klaus for the report
  • a negative reserve was also included when “PV assisted charging” was not activated. Thanks Klaus again
  • SimpleEVSE/SmartWB: A non-integer current is now supported – this should lead to much better readjustment in PV control. Thanks Tomasz, Frank and Matthias.
  • Keba: Fixed a bug that caused the app to hang occasionally (thanks Oliver).
  • SimpleEVSE/SmartWB: Support for histories in the EVSE software for accounting.
  • Made sure that by some stupid coincidence (kettle turned off, causing grid export to briefly go above 1.4kW by discharging home battery, and charging started “just like that”, and stayed on for a while due to cloud regulation) grid export cannot be higher than PV power.
  • Charge amounts extended to one decimal place, and the return from the charge amount calculator is now added to the existing charge amount.
  • UI improvement: moved car and wallbox selection from menu to action bar.
  • UI improvement: action title column made narrower.
  • UI improvement: fixed crash in horizontal layout for activities with multiple pages of information

2.14.8 (2021-06-04)

  • Crash when no car was in the car database (oops – the automatic creation of a car didn’t work) – Thanks, Jürgen!
  • Crash in Keba account management when in tablet mode – thanks, Heinz!
  • WebDAV setup now works correctly (thanks to many, but especially Karl-Heinz and David)
  • … and many small things … Trying with the new go-e hardware version 3, …

2.14.5 (2021-05-28)

  • crash when the user had no car data (ups – the auto-creation of a default car failed) – thanks Jürgen!

2.14.4 (2021-05-27)

  • “Clear Chart”-menu item is now only visible if a chart might be present (i.e. in PV surplus mode)
  • Added current power and energy as well as home battery state (if available) as texts to chart
  • improved PV-supported (not PV surplus!) charging with home battery
  • changed number of phases when switching cars was not immediately updated in the controls

2.14.3 (2021-05-27)

  • Needed to change the strategy with the phase count as more and more customers have multiple cars with different number of phases to charge with. So now the car database’s phase count is used to calculate the number of phases (for example as starting value for PV surplus control) unless the car is charging and the wallbox does return the correct number.
  • Added “wallbe Pro” (phoenix with inverted word order)

2.14.2 (2021-05-26)

  • An error in the English resource caused the list of wallboxes not to be displayed
  • fixed problem with go-e: when “energy to charge” was set, PV mode was active and the app was in the forground, charging re-started after the charger auto-resets the charge amount to 0.
  • Fixed problems in the wallbox database with user or password data
  • … and some other smaller problems of inconsistencies

2.14.0a (2021-05-09)

  • Support for multiple wallboxes (no energy management!)
  • go-eCharger MQTT configuration displayed in go-e extras
  • internal: separated databases
  • internal: dropbox migrated to short-lived token
  • database backup to dropbox
  • accounting CSV export to dropbox
  • several small bugfixes, UI enhancement
  • Keba: Account management, fixed some record inconsistencies of the charging records of the wallbox
  • 0b: some small bugfixes
  • 0c: sometimes the cloud backup power did not stop

2.12.0 (2021-04-12+15) not released

  • SMA Inverter (per Modbus/TCP)
  • E3DC easy connect Wallbox
  • Home Battery Power values in chart (if present)
  • User management (assign user name to RFID, or for (later) assignment to a charge item even without RFID)
  • fixed “problem” with cFos: when no energy meter was attached, a charging car was displayed as “waiting” in the app

2.11.0j+k (2021-04-12+13)

  • Cloud bridging sometimes did not switch off (thanks Karl-Heinz)
  • improved the PV surplus curve, as previously too much data, and sometimes not in the right order, at least here at my place, caused the algorithm to overreact.

2.11.0i (2021-04-12)

  • Keba: current change was not possible while running
  • Screensaver: possibly the data controls were offscreen for a while
  • Reorganized the menu a bit due to a future accounting

2.11.0d (2021-04-05)

  • fixed crash in charge log timer

2.11.0 (2021-04-02)

  • fixed problem with Keba not being able to change the charging power (due to a bug in Keba’s documentation).
  • fixed several Keba problems with RFID and ChargeLog (thanks Ulrich – very valuable!)
  • added RCT PV source/battery/meter combination, still in test though
  • fixed a bug with cloud backup power which did never end
  • RFID authorization added to the car database so that the auth can be auto-switched with the car

2.10.0 (2021-03-30)

  • new feature: Charged Log (Charged Energy overview)
  • Fixed crash when pressing OK after unsuccessful attempt to set a device’s IP address – the button was not disabled as intended.

2.9.8 (2021-03-14)

  • added “SolarView for Linux” Grid/PV source (thanks Werner!)

2.9.7c (2021-03-10)

  • fixed possible crash in service on service start (timing issue), thanks Franz for reporting it!

2.9.7a (2021-03-03)

  • fixed crash on reboot of the smartphone due to missing timer

2.9.7 (2021-03-01)

  • Keba P20/30, BMW Wallbox – thanks a lot, Stefan as Beta tester with a lot of patience, last not least Ulrich!
  • The energy to load was lost when the charging timer was set – thanks, Ulrich

2.9.4 (2021-02-16)

  • Fixed crash due to a missing Base64 decoder class on some devices – thanks Bernd!
  • Sometimes the power choice selection was not visible at startup

2.9.4 (2021-02-15)

  • Fixed crash when selecting go-eCharger Extras in landscape mode – thanks Bernd!

2.9.3 (2021-02-12)

  • added TP-Link Wifi Plug Kasa System (together with the default’s car charger also a possibility to charge, but it should be closely watched due to high currents) – (thanks Joachim for idea and test!)
  • added current alert: if the wallbox can measure the current, and some current flows even when the wallbox is switched off, an alert is triggered.
  • added go-eCharger Access Control settings (thanks, Markus!)
  • added PV system: Senec (Local access), (thanks Dennis!)

2.9.0 (2021-01-28) private beta

  • added go-eCharger Access Control settings (thanks, Markus)

2.8.2a (2021-01-02) Beta

  • fixed possible crash in car list editor

2.8.2 (2021-01-02) Beta

  • added Wallbox “cFos Power brain” – thanks a lot for cFos support! Great people!
  • fixed crash when leaving car management activity after inserting or removing a car
  • some library updates

2.8.1 (2020-12-20)

  • Needed new libraries because of Android 11 incompatibilities. Please inform me as soon as possible if problems occur.

2.7.3b (2020-11-24)

  • Fronius Symo (JSON) had a wrong sign on the battery power
  • SMA speedwire ran out of memory when the device was not found

2.7.2j (2020-11-19)

  • Fronius Symo Modbus did not work (“gateway not found”)
  • The “Energy to Carge” calculator crashed due to the new car database
  • Support for Wallbe Eco 2.0(s) tested and verified
  • Phoenix Controller did not work after deactivate unless the app was restarted

2.7.1 (2020-10-29)

  • The list of cars sometimes was not editable, depending on the keyboard and the size of the device
  • 2.7.1a: ensured internally that there’s a car set as selected, otherwise a crash could have occurred

2.7.0 (2020-10-22)

  • support for multiple cars
  • support for minimum current (Zoe for example should start with 9 A)
  • support of a charging calculator (current SoC, wanted SoC -> calculates the amount)
  • visualizing the number of phases used when calculating/setting opions or charging

2.6.20 (2020-10-13)

  • “Energy to Load” almost always went up to 100%, there was no way to enter a meaningful value
  • A sticky notification could appear in the notification area even if there was no need for a service, and the app could not be stopped
  • The “go-e Charger extras” are now immediately filled with the current data

2.6.19a (2020-10-09)

  • Added some more items in the go-eCharger page.
  • Allowed Start Timer

2.6.18 (2020-09-26)

  • You can set the maximum charging power, in case you want/need a lower one than set in the wallbox.
  • You can choose which charging power values should be available for your choice
  • Reduced the amount of entries in the choice list of the energy to charge
  • go-eCharger has an own menu entry in which you can see several informative items, as well as see and set the current cable lock mode.

2.6.16c (2020-09-16)

  • Simple EVSE Added link to the forum with a how-to
  • Fixed crash in Android 6 behoben (bug in Codeverifikation definitions)
  • Made tables scrollable for small smartphones
  • Screensaver: different output of the current for more than one phase

2.6.16 (2020-08-31)

  • added Simple EVSE Wifi in “Always Active” Modus

2.6.15 (2020-08-28)

  • The smoothing for the switch-on current was a bit too aggressive sometimes.

2.6.14a-c (2020-08-24)

  • added option to show the source IP of the selected grid device, somes handy if you have multiple that you switch (manually…) due to the orientation of the PV panels (morning/afternoon with a roof orientated S-N).
  • automation for Tasker or Automate It or such apps
  • reduced frequency of MODBUS polls, due to a bug there were far too many

2.6.14 (2020-07-31)

  • Solar Log (Modbus) Support
  • Nedap PowerRouter Support
  • better detection of phase count and go-eCharger (who has non-null phase values if not charging)

2.6.9 (2020-04-16)

  • reduced amount of queries to the grid meter/grid controller, which was (unintentional) too high
  • Ladestrom wird auch in dem Chart dargestellt, wenn die Ladung nicht durch die App durchgeführt wird (zum Monitoring)

2.6.9 (2020-04-16)

  • reduced amount of queries to the grid meter/grid controller, which was (unintentional) too high
  • Charging power is being displayed in the chart even if the charging process is controlled by another controller (monitoring)

2.6.8c (2020-04-10)

  • fixed some problems in beta versions
  • fixed internal duplicate data, some – for unknown reasons – not updated, and thus the apps got unreliable data

2.6.5 (2020-03-05)

  • Grid: added Energy Meter EM300LR and Wallbe eco 2
  • Grid: added Inverter Kostal Pico/Plenticore
  • fixed “out of memory” issue
  • fixed “generic JSON” config problem

2.4.0 (2020-01-22)

  • notification was only updated on status change
  • added charge start timer

2.3.2-3 (2019-12-22)

  • Totally wrong notification corrected
  • Could not send log file (wrong entry in manifest)
  • Have a nice christmas (or vacation or… whatever you do the next days)!

2.3.1 (2019-12-21)

  • Remaining charge time was not displayed correctly unless the charging was activated

2.0.11 (2019-07-29)

  • first English release