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RRP: $392.99
$340.00 (You save $52.99)

 Product Description

The NEW NorthStar ACE PRO AGM31 w/ Bluetooth

NorthStar Ace APP Available at Google Play & Apple APP Store

Battery communicates with mobile via Bluetooth displaying depth of discharge, voltage, and much more.


Product Name NSB-AGM-31
BCI Group Number 31
Height with Terminal 9.25 in
Width 6.77 in
Length 12.9 in
Weight 76 lbs
Terminal Configuration Threaded
Pulse Cranking Amps 2,150 A
CA/MCA at 32°F 1,370 A
CCA at 0°F 1,150 A
CCA at -20°F 900 A
Reserve Capacity 220 min
Capacity 20 Hour Rate 102 Ah
Capacity 10 Hour Rate 97 Ah
Internal Resistance 2.2 mΩ
Short Circuit Current 5,000 A
Warranty 4 years full

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 Product Reviews

Showing reviews 1-10 of 12 | Next

  1. very good Battery

    Posted by Troy Wolf on Jul 5th 2018

    outstanding battery for my sons system

  2. bye bye voltage drop

    Posted by Justin Whitman on Feb 21st 2018

    This battery is a beast. I have 2 fi audio sp4v2 15 with a soundqubed 4500 wired at 0.5 ohms. Before I got this battery my voltage was dropping to the low 12s with just one agm80. Now it stays above 13.5 at full tilt and I haven't even had a chance to put my H/O alt in yet, so I'm very satisfied with this beast. Don't think twice, just get it. It's worth the $$$

  3. best service and products

    Posted by Dakota bodner on Jan 6th 2018

    The first I bought the 34 AGM now I have the 31 the thing is a beast they have very good service and I look forward to buying again GP for the win!!! 5stars☆☆☆☆☆

  4. Well made...

    Posted by Dee on Dec 5th 2017

    Got 2 of these for my SQ 7k, damn they heavy, but worth the lift!! Thanks GP, will be getting one more to close the power side of my build..

  5. 2 Northstar agm 31s

    Posted by Keith Smith on Nov 19th 2017

    Fast turn around product was here in 2 days. Definitely will do business with them again. Thanks GP!!!!!!

  6. back to agm from lithium

    Posted by Unknown on Oct 23rd 2017

    I ordered a northstar group 31. Used to run northstar then jumped on the lithium train, was running a 20ah on 4,000 watts. The lithium was obviously spent in less than a year as the voltage just continued to get worse and worse, and was never that great to start with, took out the lithium and put the 31 in, No comparison, the 31 hands down kicks that lithiums ass.

  7. Great battery

    Posted by Mike on May 2nd 2017

    I just ordered my second one of these and loving it. Staying about 13v on a DC 9k with a Mechman 240 also. I will be ordering more of these same batteries in the future for other car audio builds

  8. Fast shipping

    Posted by Steven Bass on Mar 30th 2017

    I ordered my new AGM31 at 1 oclock on a Monday, I got a tracking update 5 minutes after placed my order, and showed it was on a truck 1 hour later. I'm in a surrounding state from where it shipped from, and received it the next day. *Applaud* Thanks GP will be back for more!

  9. Best attery available in it's class

    Posted by Unknown on Dec 18th 2016

    I couldn't be happier! GP Car Audio has been the best in all aspects! Availability, Reliability, Friendly Communication, Proper Customer Service, Order processing, and Shipping was lightning fast.

    As for the Battery...It's North Star! Nuff said! And the warranty through GP and North Star is no BS!

  10. Shipping was fast...got it early....

    Posted by Unknown on Dec 17th 2016

    Buy it..buy it...just buy it.....car starts up no Bs...plus it helps out my Smg220 in the back...I...no light dimming...that's with a stock alternator....2 runs of 0 gage to the back....pushing 2 sundown Zv5 on 5000 rms....alternator will be my next order.. plus Gp has the best prices...

Showing reviews 1-10 of 12 | Next

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