Author ：Iflowpower – Portable Power Station Supplier
After the lithium-ion battery is connected in parallel, there will be the following two situations: 1, the battery is low-resistant battery discharges, usually the new battery or the internal resistance of the battery is relatively small. 2, when discharge, the internal resistance of the battery will be discharged first. After a period of time, the battery can force together.
Therefore, if the two groups of lead-acid batters are not large if the internal resistance is poor, they can be connected in parallel, but there is no need to add any electronic devices, but pay attention to charging, there is no suitable charger, can be separated separately. Two groups of lithium-ion batteries with large internal resistance are connected in parallel, the battery is not good, proposes to separate discharge, not straight and. In the two groups of lithium electricity and latter, please pay attention to the situation of internal resistance.
In summary, the two sets of batteries are connected to the inner resistance, but the strokes can be connected, the internal resistance is large, and the open power is suitable. Or use a small set of batteries in the internal resistance, after a period of time, when the two sets of batteries are different, they are straight. 3, do not mix different brands of lithium-ion batteries, different capacities or new old lithium-ion batteries, select the battery.
When the battery is low, replace all batteries. When the lithium ion battery is used in series, it is necessary to use the same type of battery. To pay attention to the polarity of the battery, if there is a polarity of a battery, the voltage of the entire battery is reduced, not a new voltage.
4, general lithium-ion battery strings are used in parallel to carry out lithium ion battery core pairs, paired standard: lithium ion battery core voltage difference≤10mV, lithium ion battery core internal resistance≤5M, lithium-ion battery core capacity difference≤20mA. 5, in series is to increase the voltage, in parallel, in order to add an output current. In addition to the load requirements, the load balancing is considered, and the load balancing is considered to ensure the consistency of the battery discharge.
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