Big 4 / Dual Battery Setup

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BigSachsy1

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I installed a 38 AH agm (a shuriken sk-bt38) to compliment my starting battery (a diehard gold). The diehard died, about 3 yrs old. I replaced it with an optima red top group 34/78 battery. My question is: is this battery an agm or a regular lead acid? It says 'high performance agm' on the sticker and it also says it's a non-spillable lead acid. Just want to know so I can charge it correctly.
 

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Wes
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I installed a 38 AH agm (a shuriken sk-bt38) to compliment my starting battery (a diehard gold). The diehard died, about 3 yrs old. I replaced it with an optima red top group 34/78 battery. My question is: is this battery an agm or a regular lead acid? It says 'high performance agm' on the sticker and it also says it's a non-spillable lead acid. Just want to know so I can charge it correctly.
It is agm but still not advisable to mix battery's. they should be the same age and model
 

rsharger

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By definition, an AGM, or "Abosorbed Glass Mat" battery is indeed a lead acid battery, but due it's construction, it can be positioned in any orientation. The internal "mat" contains the acid/water solution in such a manner, that it cannot be spilled if turned sideways. It is not the same as a "gel cell" battery however. Hope this helps answer your question.

Some light reading on the AGM batteries:

 
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BigSachsy1

BigSachsy1

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It is agm but still not advisable to mix battery's. they should be the same age and model
I have them both connected to that 200 amp stinger isolater. Only reason I even did this is because I had the shuriken agm lying around and wanted to use it. I'd like to get another red top but don't want to spend another $300 right now lol
 
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BigSachsy1

BigSachsy1

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By definition, an AGM, or "Abosorbed Glass Mat" battery is indeed a lead acid battery, but due it's construction, it can be positioned in any orientation. The internal "mat" contains the acid/water solution in such a manner, that it cannot be spilled if turned sideways. It is not the same as a "gel cell" battery however. Hope this helps answer your question.

Some light reading on the AGM batteries:

Oh that makes sense. I felt like it was too good to be true that the red top 34/78 agm was cheaper than the (spillable) lead acid 34/78 at orielly.
 
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