Batteries - simple question

babock wrote:

StirCrazy wrote:

Gdetrailer wrote:
So, in reality, you WILL pay MORE for AGM and GET LESS capacity for the SAME BATTERY SIZE and will not get any longer service life.

I myself have never understood why some one would buy an AGM for a normal RV setup. up here they are more like 50% more expensive and as long as you have a vented battery compartment why spend the extra?

Steve

Other than

1) Less self discharge
2) Never add water
3) Lower internal impedance which makes them better at driving higher current loads like inverters with lower voltage drop.
4) Because of the lower internal impedance, they also charge faster than an FLA battery

I use them in both my boats mainly because of the self discharge characteristics.

I add water twice a year, and its only a couple oz in each. a good charger minimizes water loss but ya I do have to add a bit.

self discharge is never an issue as the solar keeps it topped up when it isnt plugged in and normally it is always plugged in at home.

have no issues running my inverter and with the solar and/or being plugged in charging is never and issue, so in my case spending almost 400 bucks for a 180ah 6v agm vs 140 for a 210ah 6v lead acid just doesn't make since, but in a boat, that's a different story.

Steve