bgrthnurhemi

Thanks for the info guys. I appreciate it.

Thanks. So a 275 alt and a D6500 would be enough?

No. The OEM battery tray secures the battery at its base rather than across the top. So it's more of an issue of the battery terminals hitting the hood lift support if the battery is too tall.

Thanks for the opinions so far. Please keep them coming. Anyone have any personal experience with XS Power batteries in a 2009-2012 Dodge Ram 1500 and what hits/fits? I may just have to make a mock battery out of cardboard to see just how big I can fit in there.

I don't have any personal experience with Hifonics amps. I originally was looking to run a single 2500w amp and wire it down to 2 ohms, but got a really good deal on the Hifonics locally so I figured I would try them out.

THEKINGsBACK - Ok. From looking on the XS power website, the D6500 measures 11.8 x 6.81 x 7.25, and the D2700 measures 12.09 x 6.65 x 8.31 (L x W x H). The D6500 has MAX Amps – 3900, CA – 1070A RC – 150min. Ah – 75, whereas the D2700 has MAX Amps – 4300 CA – 1170A RC – 185min. Ah – 100. So you think the D2700 being 3/4 of an inch taller than stock won't fit? Would a single D6500 and the stock 160a alternator be sufficient? 2000s-10 - the mono amps are new Hifonics brx1100.1d and the 4 channel is an MTX 7804. The monos will each power a sa-12 d2 and the 4 channel powers (4) JBLGTO938 6x9s. Amp gain with be professionally set with oscilloscope.

I have a 2011 Dodge Ram 1500 with the 5.7L Hemi and stock 160a alternator, big 3 upgrade with 1/0 ofc. I will be installing a 3000w rms system (two 1100w rms mono amps and one 800w rms 4 channel). My stock battery group is 94R (11.9L x 6.88W x 7.48H). However, I have a little room to spare in the battery tray - about 1" in length and 2" in height. From looking at the XS Power website, it looks like the D6500 and D2700 should fit in the stock starting battery location, but the D3100 looks to be a bit too long. I am thinking three possible options that I need your guys help with: 1) Do you guys think the D2700 and my stock 160a alternator will keep up for daily use while the truck is running (don't plan to listen to music with the truck off)? 2) If I can make the D3100 fit, would a single D3100 and the stock 160a alternator be enough? 3) If stock alt and D2700 (or D3100) is not enough, could I get away with a 275a alternator (Singer or DC Power) and a single D2700 battery? I still have my backseat in my truck. There is no space in the backseat for extra batteries due to the sub box being under the seats and the amp rack being behind the seats, so finding a place for an extra battery would be difficult if not impossible. Thanks guys!

Nathan - I have a 2011 Dodge Ram 1500 with the 5.7L Hemi and stock 160a alternator, big 3 upgrade. I will be installing a 3000w rms system (two 1100w rms mono amps and one 800w rms 4 channel). I believe my stock battery group is 94R (11.9L x 6.88W x 7.48H). However, I have a little room to spare in the battery tray - about 1" in length and 2" in height. From looking at your website, it looks like the D6500 and D2700 should fit in the stock starting battery location. Is the D2700 the most powerful battery that fits those dimensions? If so, would a D2700 and my stock 160a alternator keep up with my system for daily use? If not, could I get away with a 275a alternator and a single D2700 battery? I have no space in the backseat of my truck for extra batteries and would like to keep from having to find a place to add a second battery. Thanks!