There is no need to return to shore if you are on the lake and your trolling motor batteries begin to run low. You'll need to bring a generator or portable power source to get things going. You should also check that your boat has the right adapters for connecting to the generator or electrical supply. You can connect in and start the charging process after everything is set up. Keep in mind that it's preferable to charge your batteries before they go entirely flat. If you own a trolling motor, you are aware of how crucial it is to maintain fully charged batteries. Here are some suggestions for charging trolling motor batteries while boating.