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You’ve tested the maintainer first while monitoring it for any abnormalities.Specific Gravity is Good (if it’s a flooded battery).Water Levels are Good (if it’s a flooded battery).It is safe to leave a battery maintainer connected to your battery after you have established the following: The cool thing about battery maintainers is that when you hook them up to your battery, it’s essentially a mini-computer with a diagnostics system that perpetually monitors the state of charge of your battery and keeps it precisely at 100% without over-charging. The way to keep your battery at 100% charge is with a battery maintainer. This will lead to decreased power and your battery will have a higher chance of overheating during the charging process or during discharge. Once crystallized, it will hinder the conductivity within the battery and increase internal resistance. The longer you leave your battery under the 100% state of charge, the more the sulfate on the lead plates will crystallize. If you allow it to drop below 100%, the chemical reaction inside the electrolyte is actually starting to reverse and the plates inside of the battery gradually begin to build a layer of sulfate (sulfation). The goal when maintaining a battery for the long-term is to maximize its lifespan by keeping the state of charge at 100%.
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Why it’s Perfectly Fine to Leave Your Battery Maintainer Connected to Your Battery When I first set up my battery bank 6 years ago, this was one of my first questions and I’m happy to share what I’ve learned. A monthly visual inspection should still take place for safety. Maintainers will only emit a charge when the battery’s voltage drops below 100% state of charge. It is safe to leave a battery maintainer connected to your battery all the time.
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Knowing this, it bears the question: is it okay to leave a battery maintainer connected to a battery all the time? A lot of these are much better built, and contain advanced features.Batteries will have the longest lifespan if they are in a fully charged state. There are some 48v batteries on Amazon, but there are also "server rack batteries" at a lot of the solar shops. You can also get one 48v 100ah battery, but you will need to get step down converters to output 12v. Also, not all batteries support being paralleled in sets of 4. You can find 100ah batteries on Amazon starting at $350, but you get what you pay for. With or without a heater depending on the environment. The easy way to get that is to buy four 100ah 12v batteries. In 2 weeks that requires around 5kwh of battery. Let's just say you produce 500wh/day and you use 850wh. There will be losses, and if the panels are mounted flat to the roof they will be substantial. Your total load seems to be about 850wh(/day ?) depending on how often you charge the ebike. If you get 200w of solar, and are in a sunny place you might get 1kwh/day. If you want solar, get the most you can get. They have heated batteries, but those are more $$. Too cold or too hot, and it will kill the life of the battery. However, if it's in a car, you have to worry about temperatures. You don't have to keep it charged everyday, and in the long run you get the most bang for your buck.
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