saxo_man
RMS Regular
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I have a small 7.0Ah 12v battery attached to a motor that runs a small door. I also have a solar panel connected directly to the battery. During bright sunny periods I have measured that the solar panel delivers 21-22v to the battery.
The battery has been going flat after a couple of days so I assumed it was a duff battery (although brand new) so I bought another one.
The new battery is now exhibiting the same behaviour.
As a test I charged up the first battery using a 240v charger, and plugged it into motor. I also unplugged the solar panel from the system. Yesterday I checked and it’s been two weeks, and it’s still working.
Can a solar panel drain a battery?
If I was to replace it can anyone recommend a suitable replacement panel?
Thanks
The battery has been going flat after a couple of days so I assumed it was a duff battery (although brand new) so I bought another one.
The new battery is now exhibiting the same behaviour.
As a test I charged up the first battery using a 240v charger, and plugged it into motor. I also unplugged the solar panel from the system. Yesterday I checked and it’s been two weeks, and it’s still working.
Can a solar panel drain a battery?
If I was to replace it can anyone recommend a suitable replacement panel?
Thanks