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That's because they don't have the reserve capacity that good old lead acid batteries do. New vehicles have so many electronics in them nowadays that use power even when the vehicle is off that it just drains the dry cells to nothing.Interstate used to be about the best in my opinion but in the last year and a half I have had three sets replaced (under warranty) in two pickups when they were about 6 months old. They weren’t ever run dead and 2 sets never saw cold weather. I have had a couple friends have the same issue and when I had them replaced the mechanic said it’s getting to be a common issue. Most people are staying with them just because they are really good at honoring the warranty. Pull out the bad ones and they just swap you a set of new ones. I also found out that you don’t want to run Most dry cell batteries on new diesels. Something about they alternator isn’t quite compatible and it will shorten their life. We run Optima dry cells in our 5 ton dump truck without issue so maybe it’s just the new diesel. When it comes time to replace the batteries in my HMMWV I will most likely go Optima red top.
I went with these, one failed in under 16 months, amazon backed the warranty but the price had gone up by 75$ in the meantime.Optima Yellow and be done with it. I may be able to hook you up from a local shop.
That's because they don't have the reserve capacity that good old lead acid batteries do. New vehicles have so many electronics in them nowadays that use power even when the vehicle is off that it just drains the dry cells to nothing.
I went to high school with Tony Schumacher of NHRA Top Fuel drag racing fame (fun fact).I have used the Schumacher SE-1-12S-CA Fully Automatic Onboard Battery Charger - 1.5 Amps on Amazon for $29.50. They work well and can keep a charge during a freeze.
Let me up load my university transcript for physics w/calculus for ya.Experts only, please.
I went to high school with Tony Schumacher of NHRA Top Fuel drag racing fame (fun fact).
Question on the on-board charger: Do you wire it to just one of the two batteries, do you split it to both, do you run two chargers (one per battery) ?
Or do I go with a "two bank" unit which looks to offer two separate leads pairs (one per battery).. ?
I have only seen the red and black boots. They are not waterproof. I have had mine under water. Nothing happens to them. It isn't like putting a toaster in the pool.What are the battery posts covered with when they come from AM General? I have been told that with my deep water ford kit there are supposed to be some kind of waterproof caps on the battery connections but have not been able to find them.