Greetings, All. There are some longstanding bugs in the iOS app with Blue Smart IP67 charger. I’m running app v6.19, and my Blue Smart IP67 12/25 charger is on FW 3.61, reportedly the latest. I’ve reset things a couple of times now. In Settings, Advanced:
Battery Preset does not display the selected preset, but instead says “User defined”, even after a preset is selected. This should display last selected preset until values are changed.
Presets allow a max tail current setting of 10.0A, but after selecting a preset with tail current set to 10.0A, the tail current setting is displayed as 6.2A, and while you can manually try to change that and the value will go as high as 6.3A before it stops increasing, applying the value reverts to 6.2A. I’ve got a 230AHr battery (4 x EVE prismatic cells) that recommends tail current of 0.05C, which would be 11.5A. Why can we not select the tail current we want? I wonder if this issue is what prevents selected preset from being displayed: preset tries to set tail current to 10.0A, but when tail current is reset to 6.2A after load, it says “User defined” because this value differs from the preset value?
It seems that presets are now shared between Blue Smart IP67 12/25 and SmartSolar MPPT 100/30. Changes to a preset (e.g. Absorption time limit) are displayed in that preset as viewed from both products’ settings. In principle, this is good, IF it is the expected behavior.
My Blue Smart IP67 12/25 has started changing from Bulk to Absorption long before it reaches the defined absorption voltage. It then charges at the same rate but in Absorption mode until charge goals have been reached. What could be causing this? Might it be another bug in recent iterations?
Finally, the tags list above is missing many things, cannot be added to or edited, and requires at least two tags. At minimum it should list every Victron product, or include the major types. I would select “Blue Smart Charger” or “SmartSolar”, but neither exist. The only Blue Smart listing is “bluesmart_ip22”, which is not the unit I’m talking about here. Could this list be cleaned up and improved?
Edit: Converting my early bulk –> absorption to #4 and adding screenshots to demonstrate.
First, screenshot showing how long ago the charger switched to absorption:
For points 1-3: You have created a battery preset that containing a 10A tail current. The BSC IP67 12/25 supports a maximum tail current of 6.25A. So when you load these presets, the charger cannot comply and will clip the tail current. This is why it is showing “user defined”, because the settings now deviate from the selected preset.
For point 4: We have noticed this issue internally as well and are in the progress of rolling out a firmware update. If you download the latest VC public beta (via test flight), it will contain firmware v3.65, with a fix for this issue. In a few weeks, the fix will be made available for everyone.
Greetings, lgorter. Sorry for the delay in acknowledgement: for some reason I did not receive a ping that you replied. Glad to hear that a firmware bug was identified for the bulk/absorption issue, and thank you for pointing out that the max tail current option for the BSC IP67 12/25 is 6.25A. Is that perchance something that could be increased with a firmware update to suit more battery manufacturer recommendations?
I tried to install FW 3.65 today and it failed at 5% with exit code “X88 - Communication error. Vreg Ack timeout”. Then the unit repeatedly failed to connect. I tried again after getting the unit reconnected, and it again failed at 5% with exit code X88.
For those that run into this issue after me, here was my solution:
Delete the unit from your device Bluetooth pairing, then reconnect in the Victron app.
Reset unit to defaults.
Try update again.
In my case it succeeded after unit reset. I look forward to corrected Bulk charge! (I had just charged before the update failure, so it will be a couple of weeks before I can report back.)
I can now confirm that FW 3.65 has corrected the truncated bulk charge error in the Blue Smart Charger IP67 12/25. Thanks, Victron software engineers!
There is one additional oddity, however. Voltage reading differential between devices during charge: the charger consistently reads approximately 0.58V-0.65V higher than my BMV-712 in the app. For example, when the BMV-712 reads 13.55V, the BatteryProtect 100A reads 14.02V, and the charger shows 14.13V to 14.20V (fluctuating up and down, while the BMV and BP remain constant at their respective readings).
The charger positive is connected to the IN post of the BP, and the negative is connected to a negative busbar after a 4-inch 6 AWG hop from the shunt, so voltage drop should not be an issue. Internal primary wiring in this 230Ah battery box build is 1/0 AWG, and short.
