Hello Folks .. I have register to the forum becuz I have a battery situation that I need help understanding. Thought I'd bring it to the experts. Thx in Advance. Just bought eight Rolls S6 L16-HC 445 Ah 6v … to incorporate into existing, whole house solar system.
I made two mistakes, right off the bat .. #1 ... Didn't check the SG (at delivery) or before charging and #2 ... added 1/4" of H2O to top off ... Then did a 24 hr < 20 amp 12v charge to a pair of the 6v in series. Final open voltage is 6.35V … with a SG of about 1.215 after temp correction for a 60* battery temp. … WHAT ? I said .. Why is the SP so low, with a good OCV? Figured, prolly cuz of adding H2O when I shouldn't have. So I did a equalization on these two 6v, in series, one hour with a 20A Xantrex charger. … The SG came up .015 to 1.230 . But … There's a long way to go to get to 1.270 .. Which is why I'm here to get some expert advice, before doing anything else .. PLEASE advise !!
Is this a normal occurrence with LA Batts? Is there a problem with these Rolls batts, or just with me ? How do you all think I should proceed to get SP.Gr. to a new battery level ? Thanks in advance
I made two mistakes, right off the bat .. #1 ... Didn't check the SG (at delivery) or before charging and #2 ... added 1/4" of H2O to top off ... Then did a 24 hr < 20 amp 12v charge to a pair of the 6v in series. Final open voltage is 6.35V … with a SG of about 1.215 after temp correction for a 60* battery temp. … WHAT ? I said .. Why is the SP so low, with a good OCV? Figured, prolly cuz of adding H2O when I shouldn't have. So I did a equalization on these two 6v, in series, one hour with a 20A Xantrex charger. … The SG came up .015 to 1.230 . But … There's a long way to go to get to 1.270 .. Which is why I'm here to get some expert advice, before doing anything else .. PLEASE advise !!
Is this a normal occurrence with LA Batts? Is there a problem with these Rolls batts, or just with me ? How do you all think I should proceed to get SP.Gr. to a new battery level ? Thanks in advance