I bought this as a 2nd battery for my truck,running a D3400 under the hood and the D1200 in the cab. Both batteries powering a Rockford Fosgate T2500-1bdcp , T600-4 , T400-4 and a P400-4 with two T212D4's wired to 1 ohm. I can run my radio with truck off for about 2 hours and only drop around 0.2 volts in that time so I could play it for quite awhile without having to worry bout having dead batteries. These are my first XS Power batteries and they're well worth the price so just buy one, you won't be disappointed at all.
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