Lithium batteries are not fully charged is a very uncomfortable problem, if your tram is in such a situation, it can even make people sleep well. The following is an analysis of why the lithium battery is not fully charged, and how to solve it if your lithium battery is really not fully charged!

1. The lithium battery pack cannot be charged

Lithium battery packs in pure electric vehicles cannot be charged while charging. The reasons can be divided into: wrong connection of the charging head or common faults of the charging head; maintenance of the windshield or invalid lithium battery protection board; internal short circuit of the lithium battery pack to high-power electrical appliances.

After solving the hidden safety hazards, check in turn: whether the charging head is connected incorrectly, whether the positive and negative power plugs of the lithium battery pack are connected incorrectly; eliminate the maintenance of the lithium battery protection board of household appliances, restart the MOS tube, and accurately measure whether the MOS tube has the working voltage of the driver; Check for disconnection.

2. The lithium battery cannot be discharged

The lithium battery pack of a pure electric vehicle cannot be charged and discharged normally during use. The reasons are as follows: the working voltage of the lithium battery pack is low, the rain cover or the control panel is maintained; the rain cover or the control panel is damaged; the positive and negative stage charge and discharge connections are wrong; the line is disconnected or the power switch is not turned on. Countermeasures such as charging lithium battery packs, finding heat shields or wiring connections.

3. The lithium battery is not fully charged

When the pure electric vehicle lithium battery pack is applied to the circulatory system, the lithium battery pack cannot be charged when the battery is disconnected from all operating voltages and the battery charging is terminated. This is due to the inconsistent power consumption or volume of a single string of lithium battery packs. If the power consumption is large or the volume is small, first charge the battery, and then use the lithium battery protection board for maintenance, so that the whole process of battery charging can be terminated before the other series of rechargeable batteries are fully charged.

In this case, the lithium battery pack can be charged with a balanced charging head to keep the operating voltage of each string consistent. If the volume is very different, be sure to replace it with a very different rechargeable battery. However, the key is to perform volume inspection and matching capacity division of the lithium battery after the lithium battery is assembled, otherwise it will be inconvenient to disassemble in series.

4. Short battery life

Lithium-ion battery packs in pure electric vehicles rapidly discharge current when in use. The reasons are: the rechargeable battery is not fully charged; the working voltage and volume of a single string vary greatly; the lithium battery pack is micro-short-circuit fault or the self-discharge flow of the lithium battery pack is too large, resulting in the power consumption of the lithium battery pack being exhausted soon after filling . For the above bad rechargeable batteries, the lithium battery can be recharged or replaced.

5. The lithium battery voltage is unstable

The lithium battery pack of pure electric vehicles is composed of multiple lithium batteries in series and parallel, and the consistency of lithium batteries is very high. Although the lithium battery pack manufacturer has matched the lithium battery, due to the error of the rechargeable battery, the working voltage of each series of rechargeable batteries will be inconsistent during the long-term use of the lithium battery pack, resulting in the failure of the lithium battery pack. The whole set of kinetic energy output is reduced, and then there will be problems such as sudden power off in the application, a sharp drop in progress, unsatisfactory charging, and the battery cannot be charged.

If your battery is not fully charged, and you can't find the reason why the lithium battery is not fully charged to solve the fault, you can actually ask our lithium battery manufacturer for consultation to see if it is repaired or replaced to save trouble and money!