12 volt battery question please

3 tons wrote:
ANY Battery can be defective, or prematurely die a natural death, but at least with LFP’s some come with a ten (or even 11year) warranty….I admit this is purely anecdotal, but when my comparatively pricy 18 mo old single 200a/h LFP for some reason developed a premature shut-down at 20% SOC, it was simply replaced under warranty with no questions asked…I load tested the replacement and it’s actual capacity was at 215a/hrs….Bottom line is there’s just no certainties in life, but reputation often matters - “you just gotta pick your own poison” - lol

3 tons

Everything has "defects", just some defects never fully show up and some when they pop up can have rather interesting results.

As you say, pick your poison..

Spent my last 22 yrs of work life building, setting up highly computerized electro mechanical robotic equipment in an industrial 24/7/365 use environment.

Most everything designed for a consumer use is designed around 8 hrs per day average. In industrial 24/7/365 use, we use stuff at an accelerated rate, basically using up the life of equipment three times faster than a average consumer.

Ran into that issue when a system board manufacturer gave us a quote of 5 yrs average life on a system board.. They quoted that thinking that it was going to be used for a single 8 hr shift per day.. Our purchasing department thought it was warrantied for 5 yrs for 24/7/365 use.. A lot of red faces after the system boards started failing after only 2 yrs of use and no warranty from the manufacturer once they realized we were using it 24/7/365..

There IS a reason why equipment designed mainly for industrial use cost as much as 5 times more than ones slated for Consumers..

From my work experience which did involve AGMs and Lithium batteries I have seen good and bad with both. From some of the bad especially with Lithium batteries I have a real healthy respect for what they CAN do in case of something goes sideways in either a defect or abuse. Doesn't matter either way, they pack a lot of energy in that little package which when it goes sideways can result in one large amount of heat being released in short order.

I don't sleep with a phone in my pocket, under a pillow, in bed. I don't leave phones lay on materials that easily can spread a fire. I don't expose my cellphone to hard shock and try to avoid dropping it on concrete or drop it in water as I have seen what happens to even industrial ruggedized Lithium batteries.. Heck, my cellphone when at home lives on a non flammable surface when I am not using it..

Treat them with respect.