Recent content by cisumma

Sounds to me like a universal problem ( same in my world of vmax lead acid batteries). Some further feed back would be good. I divided a 12v system ( 300 watt harbor freight and Marine 12 v that has been very consistent with lights and charging for the last 3 year only if a larger 24v mppt...

I have 2s3p for the 355watt panels. Vmax ah 4s2p = 400ah 24v system So, with two 12v chargers I am charging 2@ 12 volt batteries. Good C rate and no explosive Archs. I blew a 100 amp fuse ( battery Bank hot )somehow last week and didn't catch it in time. I am not sure how the mppt would "...

I have never worked with the software. XML I wonder what the code looks like. Soon we should be able to talk to it to load XML values . It must be JAVA. Or C.. I plan on buying another 24 and a 48 lv. I am only half way there. Thx again.

Great. I don't see why the panels can't do a charge . I will work tomorrow.thanks for your time.

I will try tomorrows sun; but, today the pv never produced watts but, it shows like 90 volts from the panels

6 volt battery

Vmax ah 4s2p = 400ah 24v system

Set one to ute

Why won't the internal charger kick in?

It is plugged into the grid too.

Right on, I have a 12v charger on the mppt minus the neg battery post and the 24v mppt is running " bypass ( no charging ) just 120 output; and, I have another 12 v charger on the 24v 400 amp hr lead acid battery bank. How many years will it take the 9 amp charger to charge her up? I was...

My 24 v mppt worked fine for several years. I ran into a low battery situation . The 400 amp hr bank ( lead acid) must be at 15 v ( meter got stolen so not sure ) but, I disconnected all the loads and the pv input and the 120 v from the grid won't turn on the mppt.

How much power do these lights use? 100w of light would cost you 2.4kwh per day Actually, all the lights are in a 12 volts 3p 400 ah battery bank powered by a 300 watt harbor freight system and a 24 step down regulator that has maintained a 14 volt charge for several years now. I hope to get...