It’s a common belief that the voltage of a lithium-ion battery can accurately indicate its charge state. However, this is only partially true. The lithium-ion battery’s voltage increases as it charges, but the relationship is not linear. It can vary based on several factors, including the battery’s age and temperature.
If the battery is not fully charged or if the automatic synchronisation does not happen, the state of charge value will start to drift and will eventually not represent the actual state of charge of the battery. The following parameter (s) will have an effect on automatic synchronisation if they have been set incorrectly: Charged voltage.
Incorrect state of charge due to a synchronisation issue: The state of charge is a calculated value and will need to be reset (synchronised) every now and then. The synchronisation process is automatic and is performed each time the battery is fully charged.
Instead, a more accurate method for determining the state of charge (SoC) is through coulomb counting, which involves tracking the flow of charge in and out of the battery. This method requires precise current measurement over time and can provide a more detailed picture of a battery’s charge state.
Avoid using lead-acid battery chargers, as they have different voltage levels. Frequent Charging: To extend the life of lithium-ion batteries, they should be charged before reaching a low state of charge, ideally when they’re at around 80% capacity. Avoid allowing them to fully discharge before recharging.
Research indicates that storing a battery at a 40% charge reduces the loss of capacity and the rate of aging. For instance, a study found that lithium-ion batteries stored at 40% charge retained approximately 97% of their power after one year, compared to around 94% when stored at 100%. Temperature extremes can indeed affect lithium-ion batteries.
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If the battery is not fully charged or if the automatic synchronisation does not happen, the state of charge value will start to drift and will eventually not represent the actual state of charge of the battery. The …
Charging a lithium battery pack may seem straightforward initially, but it''s all in the details. Incorrect charging methods can lead to reduced battery capacity, degraded …
If the battery is not fully charged or if the automatic synchronisation does not happen, the state of charge value will start to drift and will eventually not represent the actual …
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Voltage Rise and Current Decrease: When you start charging a lithium-ion battery, the voltage initially rises slowly, and the charging current gradually decreases. This …