newplumber
Senior Member
Hi
I searched the forums but came up short ... I was hoping someone did a post on tending their car battery since Allycat,Marks and others did awesome posts on reading voltage but I didn't find tender battery posts.
Here's my future project ...my 12vdc battery in my riding lawn mower/tractor seems to play dead every time I try to mow the grass and I believe its because it sits all winter long. I've read alot
on google about maintaining batterys and seems if a battery is charged and discharged regularly(daily) it keeps it healthy. I'm sure there is a lot of battery tenders out there but mine will be the first
battery tender that does all the maintenance at 2AM and if possible will all be run off solar cells, but for basics my idea is
at 2 am
...discharge battery to 12.5v ...using a 12v 2-amp power source ( fan ,heater etc)
...charge battery to 14.5v ...using a 12v 2amp charger
every other day or so using ds3231 rtc
The only simple way I can see using solar power is to convert 12vdc to 120ac to use my ac/dc charger
unless there is a simplier way? ...I plan on using a 100watt 12vdc solar panel with a few stationary batterys
I will draw up my simple idea later on to make sense.
I also was planning to use the picaxe 20m2 and maybe add a few safety sensors
-- battery temp
-- battery boil over
etc
like always any extra input always helps
I searched the forums but came up short ... I was hoping someone did a post on tending their car battery since Allycat,Marks and others did awesome posts on reading voltage but I didn't find tender battery posts.
Here's my future project ...my 12vdc battery in my riding lawn mower/tractor seems to play dead every time I try to mow the grass and I believe its because it sits all winter long. I've read alot
on google about maintaining batterys and seems if a battery is charged and discharged regularly(daily) it keeps it healthy. I'm sure there is a lot of battery tenders out there but mine will be the first
battery tender that does all the maintenance at 2AM and if possible will all be run off solar cells, but for basics my idea is
at 2 am
...discharge battery to 12.5v ...using a 12v 2-amp power source ( fan ,heater etc)
...charge battery to 14.5v ...using a 12v 2amp charger
every other day or so using ds3231 rtc
The only simple way I can see using solar power is to convert 12vdc to 120ac to use my ac/dc charger
unless there is a simplier way? ...I plan on using a 100watt 12vdc solar panel with a few stationary batterys
I will draw up my simple idea later on to make sense.
I also was planning to use the picaxe 20m2 and maybe add a few safety sensors
-- battery temp
-- battery boil over
etc
like always any extra input always helps