Concord or Gill--Which is best?

[rockydoc]

Time to replace my batter.  I am leaning toward the sealed Concord instead of Gill.  What is your recommendation and why?

[jetdriven]

Concorde, by a large margin.

[Marauder]

Concorde without a doubt...

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[DrBill]

I had a Beech Sundowner and went through 3 Gill batteries in 7 years. That was about right and expected.  I've had my Mooney for 3 years and the battery in it at time of purchase (a Concorde) was 5 years old. I flew it for 2 years  before having a battery issue so I changed the 7 year old Battery (with another Concorde of course).  Upon detailed failure analysis of the removed battery, I found a stripped battery post. The copper post internal threads were stripped making intermittant contact.  I repaired the post and now use that 7 year old battery (now 8 years old) on my generator for my home.  Works great.

There is no better battery to buy.

BILL

[rockydoc]

Such strong opinions.  Thanks for sharing. After reading your cooments,  I just completed ordering the Concord RG-35AXC from Spruce.  

Cheers

[jetdriven]

AXC requires a weight and balance change, but its just math and an A&P signature.  We got one as well.

[KSMooniac]

You made the right choice, without a doubt.  As Byron noted, make sure you update the W&B.

[carusoam]

That many "opinions" are based on a significant amount of experience...

The disappointing part is that Gil is a member of the TCM family of businesses....

See if you can find a positive review of a Gil battery.

I found one recently. Unfortunately for Gil, it was a typo...

Best regards,

-a-

[rockydoc]

Yes, I looked at the reviews available.  Unbelievable!  I can't imagine why anyone buys Gill anymore.   Bill's comments very VERY impressive!

Cheers

[scottfromiowa]

I would go with the Aaron. Best batter of all time. Hands down superior over the Bonds.

[bonal]

Bought a Gill just about a year ago and its already failing. my new Concord 35axc arrived yesterday install tomorrow. specs look way better than on the Gil but if it were up to me i would install a MUCH better car Bat in the back. Oh well at least I know the new Concord is going to out perform the almost new Gill.

[N33GG]

I am a big fan of Concord. Reasons why too numerous for this forum.

[Immelman]

Concorde RG-35 owner here. Bought it 7 years ago and it still acts new. No leaking acid. No maintenance.

 

And at least for my E model, no weight & balance change (it is within a pound of the original equipment Rebat on the original equipment list). The AXC requires a weight change.

[Danb]

Concord...had mine 2 replaced after 8 years due to 'no reason' seemed like the thing to do. the MCS said they were fine, I figured they were long past due, just wonder how long they would have lasted?

[AmigOne]

Just to pile on…Concorde !!!! from own experience.  Really like comedy said I don't know who buys Gill anymore.

[N601RX]

How does Gill even stay in business? Do the have other lines besides their aviation line? I know Concorde has other markets outside of aviation. We use their batteries on our solar powered data collectors. As long as they are not deeply discharged and left that way for an extended time they will last many years.

My Concorde was 7 years old when I replaced it because it thought it was getting weak. I still have it 2 year later and use it around the house to power stuff?

[ArtVandelay]

I have a Gill in mine, but have no idea how old it is.

[FlyDave]

In my old Cherokee I had put a couple of Gill's in in the 5 years I owned it. I put a Concord sealed lead acid in my J a 3-4 years ago and it seemed fine when I sold it.

Previous owner of my Bravo replaced both batteries with Gill Sealed Lead Acid batteries (pn: G243S) in February of 2013. Hopefully they'll last longer than the previous non-sealed versions that were installed (I switch from one battery to the other every time I start - not sure the previous owner did this).

Does anyone have experience with the Gill sealed lead acid batteries or just the unsealed product?

[Guest]

How many of you have your Concord sealed battery capacity tested during your Annual inspection ?

Clarence

[Danb]

Me

[Bob_Belville]

Well, I guess my experience is the other side of the issue. My 6 & a half year old Concorde turned up bad this week and the only available battery on short notice was a non sealed Gill. We'll see how long it lasts!

[Ned Gravel]

Clarence:

 

I have been through three owner-assisted annuals with you and therefore I know you check it.  So, mine is.

[Bob_Belville]

I doubt that my Concorde was checked for capacity at annual.

[lahso]

My first Gill lasted over four years. The second lasted two years. My MSC recommended Concorde due to the higher failure rates he had seen in the Gills, so I switched last year.

[Marauder]

Well, I guess my experience is the other side of the issue. My 6 & a half year old Concorde turned up bad this week and the only available battery on short notice was a non sealed Gill. We'll see how long it lasts!

Bob -- 6 years for any lead battery is actually pretty good. I'm surprised mine is still going at 9 years and I am a few month short of 10 years. The first Concorde was pulled after 7 years because I thought it was in there too long. The Gills I had before the Concordes lasted 6 years -- and there were two of them! Sent from my iPad using Tapatalk