Exide agm batteries?

[els1989]

Anyone have experience with them? How did they hold up?

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[SounDrive Pro Seller]

The Exide Edge AGMs are pretty good for not being virgin lead, we are a dealer for them and haven't had any issues yet. We use one in our forklift.

 

[els1989]

Anyone else have any input?

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[adulbrich 5,000+ posts]

Anyone else have any input?

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We sell Exide here at the shop.

I ran 5 of the AGM group 49's when I had my DD M4a, Taramps 20k, and Ampere TFE 8.0

They're great

 

[els1989]

And there sealed and interior safe right... Sometimes it's hard to tell what's sealed and what's not lol

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[adulbrich 5,000+ posts]

And there sealed and interior safe right... Sometimes it's hard to tell what's sealed and what's not lol

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Yes, they're sealed. They are AGM batteries.

They're safe for interior because they don't vent hydrogen gas during normal charging. However, they will vent if you overcharge them (so they don't explode).

Vehicles with batteries inside the cab have vent tubes that lead outside the car in case batteries vent (even if they are AGM)

Most people in car audio just leave them in the trunk without a vent tube though. It's not the "right" thing to do, but most people do it anyways and if you don't vent your batteries you'll be fine

 

[els1989]

How much your group 49's... 90ah?

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[adulbrich 5,000+ posts]

I don't remember, lol

Cranking is more important to me

 

[MrAcd 10+ year member]

I don't remember, lol
Cranking is more important to me

I agree on this but why do so many people think ah rating is the rating to go by?

 

[els1989]

I agree on this but why do so many people think ah rating is the rating to go by?

Idk what to go by I'm just trying to learn more about batteries and what to look for

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[adulbrich 5,000+ posts]

I agree on this but why do so many people think ah rating is the rating to go by?

Idk what to go by I'm just trying to learn more about batteries and what to look for

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I also question why ah is the rating people look at for car audio.

Burst power is what's important in my opinion. Batteries in car audio only serve the purpose of buffering current demand spikes (unless you play music with the vehicle off).

Alternators are the power supply

My C&D's are only 60ah a piece iirc. The ones I have in my truck still crank 400+ amps each. So x28 that's 1,680 amp hours and 11,200 cranking amps //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

When these go out, I'm getting group 31 Semi cranking batteries. Those crank 800-1,000 amps each and will be much better for audio purposes