Walmart Battery Comparison
Roughly 5 years ago I installed three 12V Marine batteries that I purchased from Walmart. I can fit a maximum of 3 batteries on board, so I decided to go with 3 12V batteries instead of 2 6V batteries...
Forum Discussion
Interesting charging profile! The usual one has "bulk" end and "absorption" start when amps begin to taper when Vabs is reached.
Some chargers do 'trip' to tapering amps with battery voltage still rising though.
"SG Lag" is mentioned in a different way too. They note that the battery may become stratified during bulk. Would that be a fast vs slow charge issue? Then they say that the absorption stage (their constant current method--who has a charger that does that?) "completes the charge" as the electrolyte is mixed.
Makes you think that the final mixing (de-stratification) is what brings the battery to 100% SOC where usually the idea is that happens with the completion of the chemical changes on the plates vs electrolyte (de-sulfation)
Some chargers do 'trip' to tapering amps with battery voltage still rising though.
"SG Lag" is mentioned in a different way too. They note that the battery may become stratified during bulk. Would that be a fast vs slow charge issue? Then they say that the absorption stage (their constant current method--who has a charger that does that?) "completes the charge" as the electrolyte is mixed.
Makes you think that the final mixing (de-stratification) is what brings the battery to 100% SOC where usually the idea is that happens with the completion of the chemical changes on the plates vs electrolyte (de-sulfation)
