The high-voltage battery of an EV or hybrid car has to be replaced as soon as the warning lights come on. The hybrid battery comprises a number of individual battery modules containing hybrid battery cells, which can lose performance at different rates.
If the battery cells do not work together correctly, replace the hybrid battery before it becomes obsolete. Some choose to repair or recondition it, but this process requires special equipment and training and can only be done in a repair shop.
Others go for re-manufactured batteries that are significantly cheaper but still in warranty. However, the lifespan of re-manufactured hybrid battery replacement is less than three years. The best remaining option is purchasing a new battery. It is the most expensive solution, but the longevity of a new battery can pay off in the long run.
Moreover, the performance of a new battery is highly superior to that of a re-manufactured or reconditioned one. When the performance is not on par with the established standards, the alternator can become damaged over time. This is why a new battery is a much better and safer option than the other two.
As a result, the main four reasons to buy a new hybrid battery are: longevity, superior performance, the protection of the alternator, and the cost-effectiveness of the replacement procedure compared to the high costs of repairs and reconditioning processes.