I have a Victron Blue Smart IP65 Charger 12V 10A from the HQ2519 series.
I have the following concerns about the correct operation of the charger:
There are peaks current in the charging (video with the BULK phase in Low Current mode).
The voltage in Normal mode should be max 14.4V. However, I have almost 14.7V in Normal mode (it`s too high). When I switch the programme to High mode, I have 14.7V – in High mode it is OK.
Is there a fault with the charger? In my opinion, the charger is not working properly.
What are you trying to charge with this? If you have a lithium battery with internal BMS then it is possible that the BMS is causing the fluctuation if the charge voltage is too high.
guystewart
(Guy Stewart (Victron Community Manager))
3
I have noted the report for the IP65 and will get back to you
There was a previous issue with IP65 chargers - as reported here, I believe it’s resolved now with replacement hardware - I am not yet sure if this is the same issue you’re reporting, but please look through;
I suspect you are looking at the temperature compensation for lead acid batteries. When cold, lead acid is charged with to a higher voltage.
14.67V corresponds with about 8°C
I have also noticed that the charger does not check whether the battery is connected or whether it is working properly. The video shows how, without a battery connected (current 0A), it smoothly goes through the following modes: TEST, BULK and ABS.
You can also see a very dangerous increase in voltage for the HIGH programme to as much as 15.0V.
In the NORMAL programme in TEST mode, the correct voltage is 14.40V, while in BULK mode it is already 14.70V – why? It should be max 14.40V.
Current pulsation occurs only in the LOW CURRENT programme (max 3.0A). There is no current pulsation in 10.0A mode.