Is there any special attention that we need to take in order to charge a 12V lead calcium battery safely? I got a small one for field use and got a 12v (500mah) wall charger as well. I checked internet and people said just charge it overnight.
(1) In this case, how are we going to know if it is finish charging? By measuring if it reaches 12v?
(2) What happen if we over-charge it? @_@
(3) Can we charge it even it is not fully discharged?
Thank you guys.