18650 rechargeable battery lithium 3.7v 3500mah
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18650 rechargeable battery lithium 3.7v 3500mah
18650 rechargeable battery lithium 3.7v 3500mah

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Battery life.18650 battery 3.7v 3500mah

release time:2023-08-14 Hits:     Popular:AG11 battery

  

  life

  There are two concepts for the lifespan of batteries: "dry storage lifespan" and "wet storage lifespan". It must be pointed out that these two concepts are only related to the size of battery self discharge and are not the actual lifespan of the battery. The true lifespan of a battery refers to the actual length of time it has been used.

  For the primary battery, the battery life is the working time (related to the discharge rate) representing the given Nameplate capacity.

  For secondary batteries, the lifespan can be divided into two types: charge discharge cycle lifespan and wet shelving lifespan.

  The charging and discharging cycle life is an important parameter for measuring the performance of secondary batteries. Enduring a charge and discharge is called a cycle (or a cycle). Under a certain charging and discharging system, the number of charging and discharging cycles that a battery can withstand before its capacity drops to a specified value is called the charging and discharging cycle life of a secondary battery. The longer the charging and discharging cycle life, the better the performance of the battery. Among the commonly used secondary batteries at present, the charging and discharging cycle life of cadmium nickel batteries is 500-800 times, lead-acid batteries are 200-500 times, lithium-ion batteries are 600-1000 times, and zinc silver batteries are very short, about 100 times.

  The charging and discharging cycle life of secondary batteries is related to conditions such as discharge depth, temperature, and charging and discharging mode. The so-called "discharge depth" refers to the percentage of the discharged capacity of the battery in the Nameplate capacity. Reducing the depth of discharge (i.e. "shallow discharge") can greatly prolong the charging and discharging cycle life of secondary batteries.

  The service life of wet storage is also an important parameter for measuring the performance of secondary batteries. It refers to the time during which the battery starts charging and discharging cycles after adding electrolyte until the end of the charging and discharging cycle life (including the time during which the battery is in a wet discharge state during the charging and discharging cycle). The longer the wet storage life, the better the battery performance. Among the commonly used batteries, cadmium nickel batteries have a wet shelf life of 2-3 years, lead-acid batteries have a lifespan of 3-5 years, lithium-ion batteries have a lifespan of 5-8 years, and zinc silver batteries have the shortest lifespan of only about 1 year.

  In addition, the performance of the battery includes: low-temperature performance, overcharging resistance, safety performance, etc.


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