battery question

A bit more information is necessary to make an intelligent comment. Is it 12 Volt or what? Are the terminals posts or screw or a combination? What is the battery name, manufacturer, or model number? With this info, most of us can make some recommendations and comments.
Mack

it is a 12volt deep cycle everstart from wal-mart, it has a combo screw and post.

I have a similar battery. My tender is on it at all times since it is connected on the "screw" posts with wing nuts. I keep the trailer plugged into 110v.
My inverter still has the clips, so I put them on as needed, and the tender stays there.
Haven't had any issues.

What those are for is to hook up a series of battery, that's what I did.

I have two deep cell's and the extra battery is connected to the first battery via those extra posts.

You might be able to hook up an Inv/Charger to that, but on mine, the Invert charger is hook up to the normal connectors and it charges both batteries.

With that arrangment, they are the same potential electrically. Your can hook up to either for chargers, inverters, etc. You can even use one post and one terminal of opposity poliarities for the your connections. It is just a convient way to allow common types of connections.

maybe i am dense but i don't completely understand. is that a "no you can't" or a "yes you can"

the short answer is yes, the long answer is please call me on my cell at two one four, four seven five, zero three four seven and I will discuss with you as I sense a reluctance on your part to fry your systems and need to discuss. I tend to be long winded etc. but do have over 40 years of experience in electrical and electronics and firmly believe that the only dumb question is the one not asked.

Mack Yarbrough