Thread: Need advice on main and trowling batteries

I think that was only true for the older dry cell batteries like used in electric shavers, drills etc. Everything I read from the battery makers about wet cell TM batteries says to keep them fully charged. They state that leaving one discharged will cause the plates to sulfate and that builds up over time and reduces the battery's life and cycle time. That is why they recommend the modern chargers that monitor the battery when it sits for a while and charges as needed.
I am not sure how much of this, is any, applies to the AGM and other similar batteries. I have not been able to afford one of that type yet.

Originally Posted by SeaRay

I think that was only true for the older dry cell batteries like used in electric shavers, drills etc. Everything I read from the battery makers about wet cell TM batteries says to keep them fully charged. They state that leaving one discharged will cause the plates to sulfate and that builds up over time and reduces the battery's life and cycle time. That is why they recommend the modern chargers that monitor the battery when it sits for a while and charges as needed.
I am not sure how much of this, is any, applies to the AGM and other similar batteries. I have not been able to afford one of that type yet.

I think Ray is right, fully discharging a lead acid battery can shorten its life. Best to recharge as soon as possible after use. Even if its still mostly charged. Again this is for Lead Acid batteries. Best to have a set that you only partially discharge during a day's fishing if you can. Has worked best for me.
Tight Lines!