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I'v got a 11 GS which I don't have a lot of time to drive. Sad but true. I have a battery tender hooked up almost all the time and keeps the battery from going down. My question is has anyone tried using 2 batteries hooked up in parallel, the voltage stays the same at 12 volts but the capacity is twice what one battery is. Since the GS has the battery in the "trunk" a second battery could go in the storage hatch on the drivers side of the trunk. Anyone with a answer?
I have two batteries in my Bentley. There is an AGM and a lead acid battery. They don't stay in parallel but I can connect them through a key switching sequence if one is dead or dying. So, yes, it can be done. The problem with two is they will still run down from non use except now you've just multiplied that by 2.
Both of these are in the trunk. AGM is on the lestside; lead acid is on the rightside:
I do maintain them with separate Cteks:
Last edited by BlindSpot; Sep 15, 2019 at 05:03 PM.
I have done that in cars ,trucks and boats works with out problems. Two 12 volt batterys connected in parrell will act as one larger battery, longer to discharge but longer to recharge when dischaged. Another way is to repace the battery with a higher capcity battery of the same battery group size. Both will work you choose.
Yes, can and is done in a variety of applications...
Though I'm not sure if one tender will trickle 2 batteries, or 3 or more for example..
However, 2 batteries with greater capacity (i.e. optima yellow top) wired in parallel will greatly exceed typical holding capacity, aka a booming Sound System, or other Electric draw.
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2 12volt batteries in parallel?
