Hobie Bait Tank 6Volt Battery Question

[Lipripper92592]

I've been having some Hobie livewell issues the last three times I headed out. After replacing the switch I thought I had everything fixed, but it died again. The pump seems to work just fine, but dies after some time, and sometime being about 5 hours.
Which leads me to believe it is the battery.
When fully charged and allowed to rest for a day, the standing voltage is 6.2volts. I believe this is too low.
If you have a few minutes, could you check the standing voltage on your fully charged 6volt battery with a meter and let me know what the reading is? Trying not to waste $$ on a battery if that's not the issue, but your findings will confirm or debunk my theory. Thanks so much.
Chris