NYBo
Admiral
- Joined
- Oct 23, 2008
- Messages
- 7,107
You want not-cheap? Here's your answer.![]()
To try and make my cheap Wal-Mart batteries last longer, on those 90+ degree days, I charge during the cool of the night versus the heat of the late afternoon/early evening times.
Most temperature compensating chargers for lead acid just change the float voltage. Temperature can for sure be an issue but it really is not that great in a boating environment. Automotive is way more severe as the underhood temps are much greater and batteries in those applications last 5 years.That's an excellent strategy. A really good charger (commercial grade) would have a temp probe that attaches to the negative terminal during charging. I've spent a few weeks in 115 degree downtown Phoenix when I worked for Fireman's Fund. I doubt that type of charger would even come on. You definitely have your challenges.
You need to stop doing that. No tap water in the radiator of the car either.Ok I admit I top off the battery with Plain old Tap water.
Here is the real reason to go with the Optima/ AGM batteries. the plates in a traditional battery can and often short the plates internally. the AGM battery has an insulator captured between the plates and CAN'T short out on you on the water. And the Optimas AGM will go way past warranties with proper use/maintenance as stated by others. I have been Using Optima for over 10 yrs auto and Marine with no regrets for the higher purchase price.Ok I admit I top off the battery with Plain old Tap water. I suppose I'm doing harm with this.
Also I do believe heat is the Killer. Maybe I should keep the batteries in the house when not is use
This has been educational.
Thank you