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2. Battery regenerator - Wikipedia

   en.wikipedia.org/wiki/Battery_regenerator

   As the charging process continues, such a battery will reach the charger's preset cut-off more rapidly, long before it has had time to accept a complete charge. In this case the battery charger indicates the charge cycle is complete, but the battery actually holds very little energy. To the user, it appears that the battery is dying. [2]

3. Self-discharge - Wikipedia

   en.wikipedia.org/wiki/Self-discharge

   How fast self-discharge in a battery occurs is dependent on the type of battery, state of charge, charging current, ambient temperature and other factors. [2] Primary batteries are not designed for recharging between manufacturing and use, and thus to be practical they must have much lower self-discharge rates than older types of secondary cells.

4. Does Charging Your Phone To 100% Ruin Your Battery? Here's ...

   www.aol.com/does-charging-phone-100-ruin...

   Wang noted that if you frequently charge your phone to 100%, your battery will deteriorate roughly 10% to 15% faster over your phone’s lifetime than if you charged it to consistently to a lower ...

5. Charge cycle - Wikipedia

   en.wikipedia.org/wiki/Charge_cycle

   A "charge cycle" is not a unit of time; the length of time spent charging or discharging does not affect the number of charge cycles. [1] Each battery is affected differently by charge cycles. [2] [3] In general, number of cycles for a rechargeable battery (the cycle life) indicates how many times it can undergo the process of complete charging ...

6. Battery charger - Wikipedia

   en.wikipedia.org/wiki/Battery_charger

   For example, for a battery with a capacity of 500 mAh, a discharge rate of 5000 mA (i.e., 5 A) corresponds to a C-rate of 10C, meaning that such a current can discharge 10 such batteries in one hour. Likewise, for the same battery a charge current of 250 mA corresponds to a C-rate of C/2, meaning that this current will increase the state of ...

7. Lead–acid battery - Wikipedia

   en.wikipedia.org/wiki/Lead–acid_battery

   Sulfation also affects the charging cycle, resulting in longer charging times, less-efficient and incomplete charging, and higher battery temperatures. SLI batteries (starting, lighting, ignition; e.g., car batteries) suffer the most deterioration because vehicles normally stand unused for relatively long periods of time.