Cheapest way to "maintain" batteries

[Tree]

two cheap group 27 bats..... one bank. 220amp hrs. Long winter. What would you use to keep them pumped up?
(looking for an afordable battery maintainer)

[TQA]

At home?

In a marina and untended?

On a mooring?

Need input!

[Tree]

oops..... sorry, not enough info.

The answere to your question is: At home. ..... AC is available.
Also, I'm located at a very high latitude, so solar is not a good option.

I have a Guest 2607, but in the fine print it says 72 amp hr Max bank size.
I've wondered though if it might be ok as a maintainer...... make sure they are toped off before putting the 2607 on.

[mitiempo]

As a maintainer it should work fine at 3 amps per output.

[mitiempo]

Why should altitude make a difference with solar?

[Tree]

not altitude, .... latitude ;-)

[mitiempo]

Sorry, I guess I read it wrong - can't tell as it has been edited.

[CalebD]

Before we put our 2 group 27 batteries to bed for the winter we fill the cells with distilled water as needed. Then they get hooked up to a multi stage charger and they spend the winter being trickle charged. Check wet cells again before re-commissioning.
We did have to get new batteries this year but the oldest was 6 or 7 years old. I'd prefer if they would last 10 years but I gather that anything over 5 years is considered decent longevity for wet cells.

[Tree]

So I put the Guest 2607 on the batteries after charging them up.

After one hour, my little volt meter showed 13.4.
After twentyfour hours it's reading 13.8 Does that seem high?

I can't hear or see "boiling"

The 2607 seems to be doing OK ... though it does feel very slightly warm.

Sorry, I'm a worrier.

[mitiempo]

Chargers will get warm normally.

According to the manual - shown below - that is normal and as the battery becomes fully charged the voltage (and current) will drop.

It is not likely they will boil as the current is only 3 amps max reducing to .1 amps finally.