Power Surge

[Dibsy]

Had a power surge today batteries down to 55 % at 730 full by 11 30 . . 400 amp batterie

Dibs

[BruceS]

Imagine pumping it into Lead batteries like that?
Good stuff!

[T1 Terry]

Around 180Ah in 4 hrs, and I'd imagine the solar wasn't at its best until after 9 am so the last part must have been going in at a fair rate. So what are you going to do with the other 5 hrs of solar energy, run the air con or heat the water.... or a bit of both? You never had these problems with the old batteries did you, maybe they are just too much trouble with all these other things you have think about now
Haven't melted any more fuses of fuse holders on the solar input? You know it's getting serious when you blow a 50 amp fuse due to over load

T1 Terry

[Dibsy]

Oi terry that was a 60 amp fuse that let go .

Dibs

[T1 Terry]

1100w of solar through a PWM controller, the experts will tell you the very best you could get is 70%, 1100w x 0.7 = 770w divided by 13.4v as an average between the 13v and 13.8v range the battery would have been at while charging = 57.46 amps, even at 13v that's only 59 amps so how could that melt a 60 amp fuse........ unless their 70% figure is wrong and you really can get more than 70% efficiency through a PWM controller..... bugga, that would wreck a whole lot theoretical scribbling and certainly not suit the MPPT choir What is the highest charging amps you have seen Officer Dibble?

T1 Terry

[Dibsy]

O mr terry you do have a way with words .on another note I put bigger vents both ends of the batteries with 2 75 ml fans with a thermal switch. 30 c is to low it dosnt turn of so I bout a 40 c of flee bay .

Dibs