Battery/shore power question

[Anmacc2]

I keep my TT plugged into shore power. Should I disconnect my battery? I've been getting only about a year out of each battery so I know I must be doing something wrong. What is it? Thanks!

[jmcgsd]

Batteries should certainly last longer than a year. I pay a little extra for maintenance free batteries for a couple of reasons including checking them in my Lance TC is a PITA and the battery in the TT is big (a 4D which is equivalent to two group 27's).

First question is shy do you leave it plugged in? Second question is what model converter/charger is in the TT and is it a 3 way?

I would disconnect the battery in any case if you go for long periods without using the TT. If you don't have a built-in battery disconnect switch it's easy enough to add one right in the battery box. Check with your local RV store.

[All_I_could_aff]

I'm just sharing what I do, not saying it's right or wrong for anyone else.... My trailer is a 1999 with original (basic) converter. I leave my shore power cord plugged in, but turn off the circuit breaker for the converter. I then plug aftermarket battery tender into one of the interior electric outlets, and attach to batteries. I check water about every other month, but never really needs any.

[JWRoberts]

No you should not.

If you are checking the water level each month and maintaining the proper level, then you need to buy better batteries.

[westend]

Have you checked the voltage at the battery when the converter is charging it?

[tonymull]

how deeply are you discharging your battery when you go camping?

[pianotuna]

What converter is in the RV?

[seaeagle2]

Your battery charger in the converter is messed up instead of trickle / maintaining, It's either not charging or over charging.