Pirep on Sealed or normal lead acid battery replacements!

[RocketAviator]

Need INPUT...ASAP on battery replacement recommendations!

The shop working on my Rocket is saying that I need 2 new batteries (in the tail section & hard to get to) the current batteries were installed in 7/2010.  I never had any problems with the batteries but they are reporting that after charging they won't start the engine....  They have quoted 2 each G-35 batteries and my cost is $245.94 each with acid.  (don't know if that includes labor but if it is like the other items I doubt it...).   They have also asked if I would be interested in the Concord sealed batteries!  

 

What say you?  Need input ASAP so I can give them an answer!

 

Thanks in advance,

Lacee

[jetdriven]

Those gills are 209$ each from spruce, but they leak and go bad in two years. The Concorde RG-35 or rg-35 AXC with more capacity is what u want, sealed batteries and last 7 years. We got one last year.

If your cg is near the forward limit get the AXC if its approved for the M20K

[mike_elliott]

+1 on Byrons recommendation of the Concorde AXC

[Marauder]

+3 On the Concorde series. I am in year 9 of my Concorde RG-35AXC ownership. The one before it lasted 7 years and I replaced it because I thought it was in there too long...

[KSMooniac]

Concorde is the best on the market currently... Gill has been building a lot of bad batteries over the last few years according to everything I've read on various forums and lists.

[Schinderhannes]

I have to replace my Gill G35 as well and like the the idea of installing a sealed battery, but it seems the Concord AXC is 5lbs heavier.  Does Concord have a STC for the AXC?  

 

 

 

 

[DonMuncy]

Absolutely on the Concorde sealed.

[KSMooniac]

 

I have to replace my Gill G35 as well and like the the idea of installing a sealed battery, but it seems the Concord AXC is 5lbs heavier.  Does Concord have a STC for the AXC?  

 

 

 

 

 

Yes, and you'll need to update the W&B for it.  The non-AXC version is only a pound or two heavier.

[OR75]

Concord sealed AXC

if you don't work it often, consider using a battery minder

[Lood]

+1 on the Concorde AXC

[N601RX]

I replaced my Concord AXC when it was almost 8 years old.  It would still crank the plane, but was starting to slow down a little.

[Skywarrior]

One of my Gills died after only two years. Replaced it with a Concorde. Too early to say how it will do...

[Hank]

I put in my current sealed Concorde in 2008. So far, so good. I had serious cranking troubles and rebuilt the carb and the SOS system last fall, so I no longer crank and crank and crank. Still a good battery. There are two available, I bought the one with higher cranking amps. Sorry, don't remember the model. It was $250+.

[Oscar Avalle]

sealed concord...

[DAVIDWH]

After your new Concord's are installed, don't forget your new "Sky-Tec" Flyweight starter.

 

Those blades will now be nothing but a blur on start-up.

 

No more anxiety on hot starts with that combination.

[RocketAviator]

Many thanks, Two Concorde AXC on their way to the A&P shop!  

[DrBill]

You will not go wrong with the Concorde.  I replaced mine after 5 years of service and now it is used to start my home generator.  This way I can keep an eye on it with a battery minder more often than in the hangar.

BILL

[FAST FLIGHT OPTIONS LLC]

Does anyone have a weight and balance program they use to recalculate weigths and print for the POH???  I installed the heavier concorde over the weekend and want to update the weight and balance to reflect the 5 lbs xtra

[triple8s]

I bought a G-35 and it lasted almost 4 years however it puked acid out in my battery box on a VERY regular basis and I followed the instructions to the letter on putting in the acid. No more Gills I have Concorde sealed in the O and yes they are more to replace but ya wanna buy batteries AND battery boxes? or just buy a good battery?

[jetdriven]

Does anyone have a weight and balance program they use to recalculate weigths and print for the POH???  I installed the heavier concorde over the weekend and want to update the weight and balance to reflect the 5 lbs xtra

weight x arm = moment

 

total moment / total weight = CG

[FAST FLIGHT OPTIONS LLC]

I know how to do the calculations but I didn't just want to scribble it on the most current weight and balance with a pen. I was looking for one of those spreadsheet type programs that someone probably already created

[jetdriven]

excel.

[M20F]

I installed the heavier concorde over the weekend and want to update the weight and balance to reflect the 5 lbs xtra

You need to be an A&P or better to update the W&B.