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We’ve all been there, the terrible knot-in-the-stomach feeling when your phone dies and you’re unable to charge it immediately. Who knows how long you’ll be without it? What if you need to make an emergency phone call? What if someone needs to reach you? You imagine how many people will be frantic trying to reach
Lead acid battery charging uses a voltage-based algorithm that is somewhat similar to lithium-ion. The typical charge time of a sealed lead acid battery is 12–16 hours, up to 36–48 hours for large stationary batteries.
As far as battery maintenance goes, we can’t even begin to count the number of times we’ve needed to jump on our lap-tops, use our cell phones or any other portable electronic device, only to find ourselves in the unenviable position of having no juice left on the battery.