Just need some thoughts on lithium batteries. I need to start looking for trolling batteries for my boat. I am currently using Interstate AGM 100ah. I am on my 7th year and they are showing signs of needing replaced. Having a hard time deciding what type of battery because these have done a great job. Just wondering if it would be a wise choice to switch to lithium. Then not sure what to buy because there are hundreds of choices. I have looked at the LiTime and the power queen. Thanks for your help