Optima and a few others dontQuote:
Originally Posted by mudski
Printable View
Optima and a few others dontQuote:
Originally Posted by mudski
You sure? When batteries charge they let of gas, it needs to go somewhere. I cant say for agm or gel batteries. But lead acid...Quote:
Originally Posted by threedogs
Sent from my SM-P600 using Tapatalk
The AGM's like the optima and DEKA are sealed. That's why when AGM's are cooked they swell as there is no where for the gas to escape.
If thats the case, a deep cycle would be a better option for under the bonnet then wouldn't it? I know my deep cycle has a breather.Quote:
Originally Posted by Rock Trol
Sent from my SM-P600 using Tapatalk
It's why a lot of AGM's fail under the bonnet. I took a chance with the DEKA Intimidator ($399) as its rated for under hood installation and then I bought a redarc charger ($300) to hopefully charge it without cooking it.
The reality is that I would have been financially better off with another wet cell ($199) battery and changing it over every few years. The AGM is still going strong so it all depends how long it lasts. If it was not under the bonnet you would expect maybe 6-8 years of service life? If I only get 3-4 under the bonnet then the next one will be a calcium deep cycle. I'm crossing fingers it lasts.