Recharing polarity of SLA
Both leads of my recharger are identical. Does it make a difference which lead I apply to which terminal ?

I have a
6v 3.4AHr SLA with terminals marked + and -
Reacharger unit has bulk and float automatic switching
output is 6.9v DC 0.3A.

Any suggestions. ps I have a multimeter but I dont know what to measure.