First of all, let me describe my system. 2 X 270 W panels.
MPPT ML2430 solar controller 30amp
Inverter tundra 2500w 24v
4 crown CR430 6v bateries (14 months of use). (in a garage, in a 1 inch styrofoam box... for the cold!)
Intelligent charger for my generator
Here's what it's used for. 1 Cellular signal booster (110v)
8 lights (110v...7 w leds...soon to be on 24v to skip the inverter)
1 fridge 24 v around 1.6 amp
I'm using the system on the weekends. Turn inverter of before leaving.
Here's the problem:
During the winter: (about 4 hours of daylight)
In the middle of the day, solar controler always indicates 100% charge. At the end of the day, percentage gets rapidly lower (like 60%). If I turn lights on, or use few things on the 110v, or if the fridge starts, percentage drop drastically (sometimes under 30%). If I turn everything off, percentage goes back up (around 50%). I thought the battery wasn't fully charging but they get into float charging mode even sometimes in equalization mode. Voltage values seem to vary according to the percentage (not measured with a multimeter but on the solar controller window). Almost every weekend, I charge the battery with the intelligent charger for a few hours and it doesn't seem to be a lot better.
During the summer:
A bit better. But percentage vary drastically rapidly also.
Any hints on what might be the problem?
Bad battery?
Wrong wiring?
Normal situation and I should not do anything?
MPPT ML2430 solar controller 30amp
Inverter tundra 2500w 24v
4 crown CR430 6v bateries (14 months of use). (in a garage, in a 1 inch styrofoam box... for the cold!)
Intelligent charger for my generator
Here's what it's used for. 1 Cellular signal booster (110v)
8 lights (110v...7 w leds...soon to be on 24v to skip the inverter)
1 fridge 24 v around 1.6 amp
I'm using the system on the weekends. Turn inverter of before leaving.
Here's the problem:
During the winter: (about 4 hours of daylight)
In the middle of the day, solar controler always indicates 100% charge. At the end of the day, percentage gets rapidly lower (like 60%). If I turn lights on, or use few things on the 110v, or if the fridge starts, percentage drop drastically (sometimes under 30%). If I turn everything off, percentage goes back up (around 50%). I thought the battery wasn't fully charging but they get into float charging mode even sometimes in equalization mode. Voltage values seem to vary according to the percentage (not measured with a multimeter but on the solar controller window). Almost every weekend, I charge the battery with the intelligent charger for a few hours and it doesn't seem to be a lot better.
During the summer:
A bit better. But percentage vary drastically rapidly also.
Any hints on what might be the problem?
Bad battery?
Wrong wiring?
Normal situation and I should not do anything?
Comment