Dr_Doggy
Well-Known Member
1)
I have arduino that says input 7-12v
I have several 12v lead battery 7 amp hours, sticker says charging max voltage is 15v
I have power adapter, one 12v 2500ma(prolly too low volts) and several rated @ 15v 3amp
is it ok to just hook it all up, or maybe i need some resistors and diodes in between? usually i would try to push the limit and let it all slide, but i worry that the 15v charger will overvolt the arduino input..... should i not worry so much?
2)
the other part of circuit requires 24 volts, is it ok if I put both batteries in series, power arduino from 12v battery, and use 24 to power device.......actually the part i wonder about is charging, can i use a 15v charger in series for each battery(so total of 2 chargers in series)? while 2 batteries are in series too>?
(I do know to watch out to ensure grounds are isolated)
I have arduino that says input 7-12v
I have several 12v lead battery 7 amp hours, sticker says charging max voltage is 15v
I have power adapter, one 12v 2500ma(prolly too low volts) and several rated @ 15v 3amp
is it ok to just hook it all up, or maybe i need some resistors and diodes in between? usually i would try to push the limit and let it all slide, but i worry that the 15v charger will overvolt the arduino input..... should i not worry so much?
2)
the other part of circuit requires 24 volts, is it ok if I put both batteries in series, power arduino from 12v battery, and use 24 to power device.......actually the part i wonder about is charging, can i use a 15v charger in series for each battery(so total of 2 chargers in series)? while 2 batteries are in series too>?
(I do know to watch out to ensure grounds are isolated)