Kinetic

[MkKin420 10+ year member]

Got a HC800 sitting in my room resting at 13.3V, this good? I've had it for about 3 months never charged it or hooked it up in the car and its gonna be sitting there for at least another month or two until winters over and I get a new amp and sub. Can it sit for another couple months or should I charge it.

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[XHiFiX 10+ year member]

Yup, it's good.

 

[MkKin420 10+ year member]

Hell yea. Picked it up a few months back for a hundred NIB locally.

 

[mustang76cnb 10+ year member]

It's always good to keep a charge on a battery that sits for any length of time most good chargers have a battery tenderizer setting like a trickle charge to keep the battery up.

 

[Atimm693 10+ year member]

You could put a battery tender/maintainer on it to keep it charged.

 

[Lakota 5,000+ posts]

Trickle charge it every once in awhile.

 

[loopkiller 10+ year member]

If it is resting at 13.3v, it has more than a full charge. Usually you will see a max resting voltage of 13.2v for an AGM battery. On average, I see a max of 13.0v out of my HC1400. Best thing to do is to cycle it a few times every now and then. Find some DC fans or a motor that will run the battery down to around 11.0v or so, then put it on a charger. After about 10 of those cycles, the battery will be fully broken in and ready to go. The longer it sits dormant, the less power it will provide when you hook it up.