Tips On How To Charge Your Lithium-Ion Battery Properly
Knowing these simple tips for properly charging your lithium-ion batteries will take a long way. You will be able to prolong the usage of these battery type.
1. Trickle Charge
A Li-ion battery reaches full charge when the current drops to a set level. If you are using a trickle charge, most chargers uses topping when the level of current drops. The complete charging time will take about 2 to 3 hours.
Battery manufacturers usually recommend charging it at .08 C or even less to extend the life of the battery. Some Li-ion cells may reach a reading temperature of about 5 degrees C when it becomes fully charged. It is because of the protection circuit. If the battery temperature rises more than 10 degrees C, you must stop charging the battery.
2. Full Charge
Li-ion battery reaches full charge when it reaches the voltage threshold when the current reading registers at 3% of the current rate. You may also consider it as a full charge when the current levels are off and cannot go down any further.
3. Partial and not full charge is required
Unlike lead-acid batteries where it needs a 100% complete charging, a Li-ion battery does not need it. It is not advisable to fully charge this type of cell.
The high voltage or high flow of current causes too much stress on the batteries. Choosing a low voltage rate is highly recommended for a Li-ion battery.
It is not advisable for this kind of battery to reach stage 2 or the saturation stage. The state of charge (SOC) for step 1 reaches only 85% charge and it is the most recommended level for Li-ion charging.
4. No overcharging for Li-ion batteries
Do not attempt to overcharge a lithium-ion battery. Once it reaches full charge, you must cut it off immediately. Doing these may cause a metallic lithium plating. It may compromise safety when you fail to cut off the charging process.
When you turn-off the charger, it automatically drops the voltage and reduces the stress on the battery.