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Stephen Garner
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Keep your Batteries alive!!!
A lot of customers ask us how to best manage the health of their battery. Others are still following battery advice from the Nickel Metal Hydride era, and trying to drain their batteries to depletion before recharging. That being said, here's a quick rundown on the modern Lithium Ion Battery and how to care for it.

The lithium-ion battery works on ion movement between the positive and negative electrodes. In theory such a mechanism should work forever, but cycling, elevated temperature and aging decrease the performance over time. Since batteries are used in demanding environmental conditions, manufacturers take a conservative approach and specify the life of most Li-ion between 300 and 500 discharge/charge cycles.

Now before you start counting cycles you should be aware of one other thing; along with 'discharge cycles', you also have to keep your 'depth of discharge' in mind. Think of depth of discharge like this, if your battery is at 100% capacity then the depth of discharge is the amount you drain it before plugging it back in. It works like this:
100% DoD = 300-500 Discharge Cycles
50% DoD = 1,200-1,500 Discharge Cycles
25% DoD = 2,000-2,500 Discharge Cycles
10% DoD = 3,750-4,700 Discharge Cycles

So it's easy to see that if you drain your phone or laptop to 0% before you recharge it, you're only going to be able to charge that battery 300-500 times before it won't hold a charge. If you charge up at 50%, however, you immediately get 900-1000 more charges.

Moral of this story is, to keep your modern Li-Ion batteries healthy the longest, top them off and charge them as frequently as possible!
Undead Electronics
Undead Electronics
undeadelectronics.net
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