Li-ion batteries

#Lithium-ion #batteries are common in consumer electronic. They are one of the most popular types of rechargeable batteries forportable electronics, with a high energy density, small memory effect, and only a slow loss of charge when not in use. Beyond consumer electronics, LIBs are also growing in popularity for military, battery electric vehicle and aerospace applications.

Lithium-ion #batteries can be dangerous under some conditions and can pose a safety hazard since they contain, unlike other rechargeable batteries, a flammable electrolyte and are also kept pressurized. Because of this the testing standards for these batteries are more stringent than those for acid-electrolyte batteries, requiring both a broader range of test conditions and additional battery-specific tests.

#Inside #hover #boards in most cases use 36V 4.4Ah 158 W Li-ion battery on board. So how to right to charge this li-ion battery. Let speak little more about this.

#Charging and discharging of battery is #chemical reaction, but Li-ion is claimed to be the exception. The Li ion charger is a voltage-limiting device that has similarities with to the lead acid system. The difference with Li-ion lies in a higher voltage per cell, tighter voltage tolerances and the absence of trickle or float charge at full charge. While lead acid offers some flexibility in terms of voltage cut off, manufacturers of Li ion cells are very strict on the correct setting because Li-ion cannot accept overcharge. The so-called #miracle charger that #promises to prolong battery life and gain #extra capacity with pulses and other effects does not exist. Li-ion is a “clean” system and only takes what it can absorb.

So, the first thing you #must to #know — #try to not overcharge #battery .

The battery becomes unstable if inadvertently charged to a higher than specified voltage

Lithium-ion is not the only battery that poses a safety hazard if overcharged. Lead- and nickel-based batteries are also known to melt down and cause fire if improperly handled. Properly designed charging equipment is paramount for all battery #systems and temperature sensing is a reliable #watchman.

The second thing about hover board charging — charge period of battery not more than 2 hours

The battery capacity is 4400mAh, so it’s enough 2 hours to take full charge. Charging lithium-ion batteries is simple. The charge circuit is straight forward; voltage and current limitations are easier to accommodate than analyzing complex voltage signatures that change as the battery ages. The charge process can be intermittent and the battery does not need saturation, as is the case with lead acid. This offers a major advantage for renewable energy storage such as a solar panel and wind turbine. The absence of trickle charge further simplifies the charger. Equalizing charges, as is required from time-to-time with lead acid is not necessary with Li-ion.

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