Which battery charger setting should I be using?

Looks like there is an access panel between the terminals ?? which would suggest a wet cell type ? Reasonably sure its not Calcium or AGM ... Wet or Gel ?

Rgds

Mandrake

Hi there. I've read the brochure, and there's no mention of calcium. The batteries are described in terms of deep cycle but with cranking ability: if so, they are pretty well what I have been using for years in boats, ie not a 'pure' deep cycle, but a deliberate compromise. I have used them as second batteries in 4WD as well, because I was told they can stand a bit more drawing down, but can still be used as cranking batteries if needed. The batteries are wet; not gel or AGM; and not calcium as far as I can read. So I suggest you use the 'wet' option. If you use the calcium setting, then my understanding is that this will apply too high a voltage.
Please understand I am not trying to be the expert, but just passing on my best understanding after a few false starts over the years, including buying wrong batteries on what I though was informed advice!!!!

G'day Grass Parrot
I googled up the model of one of my batteries once & was quite surprised just how much info the manufacturer supplied.
What got me the most was my lack of knowledge of charging. The manufacturer gave a charging schedule for the particular battery.
I thought my 4 amp charger would charge it eventually. Manufacturer said it needed a minimum of 10 amps & would take some (i forget exactly how long) incredible amount of time to fully charge.
I would recommend you google your model of battery & see what you come up with.
Peter

Grass Parrot,

Using the link you provided I blew the image out to 200%.

Looking at the illustrations/photos at that magnification I would say you have a wet cell battery.

Regards,

Ian

Hi Grass Parrot,
Have a look at thread 74125 I asked this same question and got what in my estimation was some very good advice

Cheers
ob