Heyupluv
Free Member
My van sits outside in the sun…all the time (we talking summer time in sun)
Solar panel 120w
Two Banner batteries 110 ah....(now 2 year old)
At home the solar panel keeps the cab battery charged at 12.9v… & …Hab batteries x 2 to 13.8v
The on-board control panel Rapido….shows the solar charging anything from 0.4 to a max of 1,8 amps coming in from the solar panel fitted by Rapido….( I have asked Rapido why so little amps coming in from the solar panel …they said, that is how its designed??)
So when we leave home for a few days or weeks the alternator takes over on the run….so when we arrive at our destination after traveling 100km or 300km .the batteries should be fully charged up as there were when we left home …
NOW that day/ evening using very minimal battery power odd water pump odd toilet pump,,,NO laptop charging as they are all topped up,
At night when we put the TV & receiver on….. within minutes it is down to 12.1v ??? After all that charging
This also happens if we have been on electric hook up…..the first night after hook up the batteries quickly go down.
But the following days the batteries are being charged up by solar alone
Using 12v equipment during the day and charging the laptops up through the day from a step up charger off the hab batteries….the batteries hold a level at 12.5v and stay like that for 3 hours then down to 12,4v all evening…with TV on and a 12v led electric light….what a totally different pattern….
Is this normal
Solar panel 120w
Two Banner batteries 110 ah....(now 2 year old)
At home the solar panel keeps the cab battery charged at 12.9v… & …Hab batteries x 2 to 13.8v
The on-board control panel Rapido….shows the solar charging anything from 0.4 to a max of 1,8 amps coming in from the solar panel fitted by Rapido….( I have asked Rapido why so little amps coming in from the solar panel …they said, that is how its designed??)
So when we leave home for a few days or weeks the alternator takes over on the run….so when we arrive at our destination after traveling 100km or 300km .the batteries should be fully charged up as there were when we left home …
NOW that day/ evening using very minimal battery power odd water pump odd toilet pump,,,NO laptop charging as they are all topped up,
At night when we put the TV & receiver on….. within minutes it is down to 12.1v ??? After all that charging
This also happens if we have been on electric hook up…..the first night after hook up the batteries quickly go down.
But the following days the batteries are being charged up by solar alone
Using 12v equipment during the day and charging the laptops up through the day from a step up charger off the hab batteries….the batteries hold a level at 12.5v and stay like that for 3 hours then down to 12,4v all evening…with TV on and a 12v led electric light….what a totally different pattern….
Is this normal