What sets apart the warranty, for battery cells, batteries and battery packs in terms of lifetime coverage?

The key factor that determines whether drivers can confidently purchase vehicles lies in how the battery's covered under warranty.

All types of power batteries also known as chemical power sources inevitably undergo capacity degradation during usage. This includes the decay of the substance variations in the electrolyte and an increase, in resistance. In terms the batterys capacity will decrease over time. Impact the vehicles range.

Long as the battery packs capacity declines to a percentage and can be replaced with a new battery, at no cost the value of the vehicles future use will remain high. Therefore the warranty on the battery pack is a concern for vehicle owners. How do different car manufacturers handle warranties for their vehicles and their major systems?

The term "lifetime warranty" implies that it is valid based on either a time period or mileage limit. For instance if the warranty states "8 years or 120,000 kilometers " it means that within eight years of ownership if the battery packs capacity drops to 20% or 30% it can be replaced with an one, at no cost. Similarly if any malfunction occurs during this period it can also be addressed through replacement. However if the battery pack needs replacement before reaching eight years or 120,000 kilometers—lets say in the year at 130,000 kilometers—it would not be covered by warranty since whichever comes first—time or mileage—determines its validity.

There are two categories, for the lifetime warranty;

1. The first category is a lifetime warranty for the power battery pack or three electric assembly, which applies to the owner of the vehicle. Once the vehicle is transferred to another person the lifetime warranty will be automatically canceled. However if you remain as the owner you can enjoy this protection. It's important to note that this warranty doesn't hold significance in terms of replacement cycles (which usually occur every 6 to 8 years). Nonetheless it remains valuable for owners planning to keep their vehicles for a period.

Moreover it's worth mentioning that the vehicle doesn't calculate battery replacement based on an "8 year" cycle. For instance lets say a car owner plans to change their car in the year. In that case they have the option of increasing their usage frequency to reduce battery pack capacity in order to meet replacement standards. After replacing the battery pack and ensuring its effectiveness they can then sell their car while maintaining its value retention rate.

2. The second category builds upon the one by adding an " lifetime warranty, for battery cells."

Only a handful of vehicle brands offer a lifetime warranty, for both the battery pack and the three electric assemblies. The first standard applies to both while the cores lifetime warranty has no restrictions. This means that even if the vehicle is transferred to owners in the future they can still enjoy a cost replacement of the electric core.

With such a vehicle there's no need to worry about anything, than the core, battery and power battery pack.What sets them apart?

The electric core is the battery

The electric core becomes a battery, a number of batteries to form a module, a number of modules plus the control unit to form a battery pack; general power battery pack is such a structure, there are also a few vehicles using the "body battery integration" design, there is no module in the battery pack, there is a direct electric core to form a battery, such as BYD's CTB and Zero Run's CTC.

The electric core is not a battery that can be used directly, the electric core refers to the chemical core that already contains positive and negative poles, which is the core part of the whole battery; strictly speaking, there is a battery when there is an electric core, and adding the outer packaging to the electric core is the battery, the outer packaging mainly plays a role in protecting the role of the electric core or coding into a group of records, and there are also connecting boards or hardware such as the control chip for power batteries for automobiles; if the battery is equal to 100%, the electric core is equal to 90% of the battery. If the battery is equal to 100%, the battery cell is equal to 90%-95%.

To put it more bluntly, the electric cell is the battery, the electric cell is the core unit used for "energy storage"; the control board in the battery pack or the cooling circulating pipeline and other hardware failure rate is very low, the service life is also very long, so there is not much difference whether there is a lifetime warranty or not. The real core is the battery cell, as long as the battery cell has a lifetime warranty, the future use of the car will always be able to restore capacity at zero cost, including the unlimited lifetime warranty of the battery is the same.

How to replace the battery cell?

Many old drivers who have not used new energy vehicles will imagine the concept of replacing lead-acid batteries with battery cars and apply it to electric vehicles; obviously, this is a wrong understanding, the power battery packs of automobiles are generally sealed to IP67, and some of them can even reach IP68, and the motors, controllers and wiring harnesses are also sealed to the same standard. Therefore, the general repair shop is not able to disassemble the battery pack assembly, at best, only to remove the assembly from the car, and then install the new battery pack assembly; basically can not do anything else, the power battery pack is to be sent back to the manufacturer to deal with.

When the battery pack capacity decay to meet the standard, even if only the battery cell lifetime warranty, the operation of the process is also determined after the test to apply for replacement of the battery pack; in the new battery pack to the workshop, the vehicle can be driven over to replace the new assembly; in fact, it is still a replacement of the entire battery, as for the assembly of the external control unit whether to replace the characteristics of the vehicle platform depends on the vehicle platform is generally not replaced, and even if it is not replaced there is no problem. There is no problem.

This is the concept of automobile battery cells, batteries and power battery pack warranty, in fact, all protect the most core energy storage device.

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