Electric motor - charging together

I have a Motor Guide electric motor that runs on 24 volts - I run two 12volt batteries wired in series. I just purchased a Battery Tender 2 bank charger so I can charge both batteries at the same time.

My question: Can I leave the batteried connected in series when I connect the charger to charge them? When they are charging, the motor is not plugged in; however the batteries are still connected to each other.

Also, I want to mount the charger in the boat and install an outlet that will allow me to plug in a cord to charge and then un plug and its ready to go. Will it do any harm to the batteries or the motor if I have the Battery Tender connected to the batteries at all times - even when using the motor?

Thanks.

Re: Electric motor - charging together

Welcome to iboats!

Unless the charger instructions say otherwise, you should have no problem. They are still independent 12V batteries when you attach the charger leads to them.