According to the standard of electric bicycle battery, after 300 charge and discharge cycles, the remaining capacity reaches 70% of the initial capacity.
That is to say, a group of qualified lead-acid batteries has a special ring life of 200-300 times under normal use. Therefore, for the daily use of ordinary consumers, as long as the use method is correct, a group of better batteries will generally last for more than two years.
Of course, the cycle life of lead-acid batteries is also closely related to the charging and discharging conditions:
1, according to the standard current (generally 0.2C as the standard charge, that is, 0.2 times the battery capacity), shallow charging and shallow discharging can effectively prolong the cycle life of the battery.
2. If the battery is charged with a large current (generally 0.5C is fast charge, that is, 0.5 times the battery capacity), it will affect the service life of the battery, that is, the greater the charging current (the faster the charging speed), the shorter the cycle life;
Lead-acid battery can cope with large current discharge for a short time, which has little effect on battery life, but it is afraid of deep charging and discharging with continuous large current.
From a technical point of view, there are many factors that affect the life of lead-acid batteries:
1, internal factors such as composition, crystal form, porosity, plate size, grid material and structure of active substances;
2. There are external factors such as discharge current density, electrolyte concentration and temperature, discharge depth, maintenance status and storage time.
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