deep cycle battery.. got a question..

[noob_boater]

Got me an everstart 105amp/hr battery from walmart. i put it on a charger and after a few hours, charger says complete. Took it off charger for a few hrs and decided to plug it back on charger and see what it says. Battery has been sitting on charger for like 2 hrs now and charger still says charging..

The battery can't possibly be losing that much charge in 2 hrs.. the charger i have is automatic and once fully charge, it goes into tender/maintain mode..

battery bad? took battery off charger..

volt test shows 12.8V when off charger.. and 14.8 while on charger

 

[MH Hawker]

Re: deep cycle battery.. got a question..

12.8 is full voltage. let it sit over night and test again.. I don't pretend to understand all of the newer chargers, but if the voltages are good its charged.

 

[dwparker99]

Re: deep cycle battery.. got a question..

How long did the battery set on Wal-mart's shelf? What is the date code stamped in the plastic or what date is on the sticker? If it set on their shelf for more than six months, it may take a few charge cycles before it will take a full charge.

Also, which charger are you using? Some of the Schumacher Ship-N-Shore chargers run an equalization charge at the end of the charge cycle even on fully charged batteries. 14.8 volts is high for a regular charge so it may be running an equalization charge cycle.