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Lots of people are buying e-bikes. They are becoming popular, not only as modes of transportation, but also for fitness and leisure (yes, an e-bike can help you get fit and stay fit!).
But owners can be quite shocked when they discover how much a replacement battery costs (most find out when they think about perhaps getting a spare). You're easily looking at several hundred dollars, with some at, or even over, the thousand dollar mark.
Yes, these batteries are expensive. They're a good chunk of the price of the e-bike.
And with good reason. They're huge batteries packing a lot of power, with crafty onboard electronic systems to prevent over-heating, overloading, and deep discharging.
They're very good at taking care of themselves.
However, if you want a long service life out of them, it's a good idea to look after them, and to do that from day one.
Battery damage or degradation can happen in three ways:
Let's take a look at what we can do to protect the battery as much as possible to prolong its lifespan.
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Batteries wear and age in use (or even when not used). It's physics, and there's not much you can do about it.
A battery is meant to be used, so use it! It should last well over 500 recharge cycles (and remember, a single recharge cycle is when you use the battery's entire capacity, so if you always recharge when it's at 75%, you can expect to get about 2,000 recharges from it).
A few things that you can do to slow down the wearing process are:
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E-bike batteries are heavy, weighing in at several pounds. While they're quite strong, the plastic and metal construction of the unit is in no way indestructible.
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Take sensible precautions here, pretty much like you would with any other electrical device.
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Two things to keep in mind are that you bought your e-bike to use and enjoy it, and that all rechargeable batteries are consumable items that wear out over time and need replacing.
However, with the proper care, you should be able to get many years of service from your e-bike's battery. Come the day it wears out, you can then decide to replace it or maybe it will be time for a new e-bike.
So stop worrying and go out and enjoy your e-bike.