Of mice and batteries...

[luca1290]

I've been using a CTEK MXS 5.0. No EE here, Hack, and honestly, I don't know what the "floating voltage" means but with it connected to the battery terminals during charging, pretty sure I was in the 13.5 range but it's been awhile since I checked.

That's the floating voltage, you found out without knowing it's name!
It's the last state of charge of a lead-acid battery and the recommended voltage is 2.25-2.5 V per cell.
Your charger keeps them at 13.5 (same as mine) so the floating voltage per cell in your case is 13.5/6=2.25.

Lead acid batteries like to remain in this state, for the sake of their longevity when not in use is much better to keep them in the floating state compared to charging every two weeks (or connecting and disconnecting the charger frequently because they tend to cycle between all stages before reaching floating)

Sponsored

 

[kilobravo]

That's the floating voltage, you found out without knowing it's name!

Thanks for that, Luca!