Storage charge

Hi i hawe mabe a problem? Storage mode on my ip67 bluesmart showe 13,50v vhy?? In settings is stand 13.20v but will not go down to it?

Is it lithium? With a small or very small load it will stay at 13.5V for a very long time. Stick a small load on it and see if it goes down to 13.2V. You might also have a re-bulk after 7 days or so which is not required for lithium.

I run my heater and lights so it is a load, but it dont go down to the right walues, i hawe to sett the parameter in in settings lower than it actually should be, my float setting is now 13,60v and on the Main scren it say it floats at 13,90 it is like the parameters Are wong, it is agm btw

Did you check the specs for the battery? AGM should 13.5 to 13.8 float looking at one I have. Sometimes the voltage might be high due to resistance in the charge cables. The best way to get an accurate voltage for the charger is to use a battery monitor and share the voltage over the bluetooth network.

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The problem in hand is that i set the resting volts 13,20 in the menu or presett it sems to charge more than that, set at 13,10v its storage showe 13,50

But is the battery (measured by you with a meter) at 13.2v at this time?

This is potentially relevant. Check it with a meter.

I understand that, bit its the cabels that came with the charger, so can it change overtime you mean? I was thinking mabe it compansete for cold wether do? Its abut 0 here,

That is also a possibility. And more likely than the cable resistance.

You need something to give the charger temp feedback that will come from a battery monitor or shunt with a temp sensor.

I hawe tested vith a multimeter, when i set float to 13.50v i have 13.80 at battery??? And is doing that all over the range i must set it lover to Get the corekt charge volt? But why is the battry not well or is it the charger, it is just 6 mont old🙈


It is still sending 2.3A at the time so it makes eense there is slight potential on the charger.
And you have temp compensation on so could be related as battery voltage [should charge higher when colder.]
As you already know

(4. Operation)
What is the battery size in AH?

It is 160ah agm deep cykle, no the load is upp and dovn a bit, cause i juse tv lights ect😊 it is a bit colder outside its 6minus, i got home nov and it still floats 14.10 i’m going mad, dont vant to dry out the battery,

Drying happens for a few reasons.
Usually overcharging (bulk charging too long) and heat.

But your ambient is cold so the drying from gassing and heat is not likely to be happening (unless you have a much larger problem)