Battery question
Rennlist Member
Joined: Jul 2019
Posts: 1,593
Likes: 415
As others have said, this is quite normal, though I don't think it is really satisfactory. Most batteries that I purchase are less than 90% charged, and I always hit them with a real charger overnight before installing.
BTW, I'm not sure about Interstate, but Odyssey's AGM battery manual shows that 52 weeks of storage at 25 C would take a battery under 75% capacity, and this gets much worse for higher storage temperatures. Odyssey says their AGM batteries are fully charged at 12.84 V, with 75% charge corresponding to about 12.5 V.
You have to wonder what the cut-off voltage is on all these trickle battery chargers that just have LED lights for a display. I like the Harbor Freight ones that give you an shows you the voltage all the time, both when it's charging and when its idle.
BTW, I'm not sure about Interstate, but Odyssey's AGM battery manual shows that 52 weeks of storage at 25 C would take a battery under 75% capacity, and this gets much worse for higher storage temperatures. Odyssey says their AGM batteries are fully charged at 12.84 V, with 75% charge corresponding to about 12.5 V.
You have to wonder what the cut-off voltage is on all these trickle battery chargers that just have LED lights for a display. I like the Harbor Freight ones that give you an shows you the voltage all the time, both when it's charging and when its idle.
Intermediate
Joined: Apr 2024
Posts: 37
Likes: 19
From: Suburbia
This. Unless you know the true ampacity of the wire in the cable/pigtail (ie how it is de-rated), stick with what it came with. There'd be no reason to allow the safety device (fuse) to exceed the max current carrying ability unless you were really curious to see what would happen if that situation occurred. The fuse is there to prevent or limit damage, not allow it.
