solar charge controller float mode issue

[amit tulsyan]

Hi,
I have 12 volt /10 amps solar charge controller.
As per design it will bulk charge at 14.4, absorb charge is between 14.4 to 14.6 and after that it will enter into float mode.
when charge controller enters into float mode its voltage will step down to 13.7 volt and led will starts blinking.

I observed that, when i put power supply (to simulate solar panel) voltage above 14.6 volt, led is blinking which is normal but when i measured voltage across battery terminal using multi-meter then voltage is fluctuating between 14.7 to 13.7 and also between these range.
Is this normal or it require a fix.

NOTE: All this observation is while charging.
power supply and battery is connected to the charge controller.
Load is switched off.
I observed the same when i connect solar panel instead of power supply.

Can anyone guide me on this???

 

[oz93666]

My charge controller does something similar, I believe its taking the battery up to 14.7 then switches off , voltage of battery drifts down to 13.7 at which point controller switches power to battery again ....perfectly normal .

Settings might be a bit high... if you can reduce all by 0.5v you won't have to top battery up with water so often.