golf cart battery question

[PARS315]

So I need to replace my four 12 volt batteries in my 09 g29. I was thinking of going with the blue top agm optima batteries so I dont have to worry about checking the water. Or should I stick with regular lead batteries?

[Volt_Ampere]

I would stick with regular FLA batteries. I don't think AGM hold up all that well.

[PARS315]

Thank you.. Yeah I think I will just stick with trojans

[CartsRFun]

There seems to be a misconception regarding agm durability
or their ability to stand and deliver...

Quoting myself from a different thread also on agms

Regarding power density...not so sure that agms have lower
power density is exactly correct..

My Crown1 agms have performed very well for me...my 8x6volt pack
have accumulated over 6500 miles in 2 years...where flooded lead acids
may have shown to drop performance as soc declines toward the 50%
mark...where as my Crown1 agms no such thing...every night after
using my cart during the day...they go on charge...and I do balance -
equalize charge monthly.

A lot has to do with the quality of the lead plates used in the batteries.
Crown has done a great job in this regard. They use thicker plates..

Battery amp hour capacity has a lot to do with service life and run times.
Mine are the 6 CRV 260 ah size...

It is however my own experience that a Eagle Pro charger be used
on the agms as a Lester Summit II 650 charging profile...consistently
overcharged my former set of Crown1 agms with a continuos 68 volt
phase 2 unending charge cycle....fried my batteries...fortunately
my dealer was very supportive..

Yes the agms are more expensive but the advantage of being maintainance
free is well worth the price...

Talk about expensive and problematic are the lithiums ...they are
getting better...juts not for me ..yet..

You might like to take a look at this from Crown batteries...

https://www.crownbattery.com/hubfs/D...Deep-Cycle.pdf

https://www.crownbattery.com/hubfs/D...Deep-Cycle.pdf

Best wishes
Happy cartin'

[CartsRFun]

Quote:
Originally Posted by Volt_Ampere View Post
FLA or Lithium. IMO, AGM batteries are not good for golf cart use. Most chargers overcharge them and kill them quickly.

Not exactly correct...Agms particularly Crown1 are designed for golf carts,
they list the Crown 1 in the motive golf cart section

https://www.crownbattery.com/hubfs/D...Deep-Cycle.pdf


https://www.crownbattery.com/hubfs/D...-Batteries.pdf


In my case it was a badly designed profile by Lester Summit II ..

In reality though there are a number of members here who are using agms
and so far no issues...nowhere near the issues of lithium as of now..

Agm are unsung heroes...

Cannot but recommend my Crown1s

Best wishes
Happy cartin'

[ojo]

What i've read is, agm batteries are not really recommended for traction use. Over the time, they'll get lost of some liquid thru the build in vent and you can't get it back.

[Volt_Ampere]

Many chargers will overcharge AGM's and they won't last long. I've seen it. If you get AGM's make sure you have a charger designed for them.

[CartsRFun]

Not a problem if you use this...

https://www.dualpro.com/golf-segment....

https://images.squarespace-cdn.com/c...pg?format=500w


Perhaps Lester has re written the Summit II's the 22259

Crown1 charging profile....as that particular was badly written
and indeed over volted in continuous repeated non stop phase II
charging cycle at 68 volts....

I was very fortunate for my dealer credited me my agm pack for
new higher capacity Crown1 agms..

Agms are unsung heroes of the motive battery world and should definetly
be given a go...

Best wishes