The biggest advantages of closed type starter batteries are:
A. They do not need maintenance until the end of their life.
B. They have a long storage time without being placed in the car, from 6 to 12 months depending on the storage space and their manufacturing technology.
C. With proper use of the electrical circuit, they remain clean throughout their life, they do not release electrolyte resulting in oxidation in their installation area.
D. These batteries are factory tested and have far fewer operating problems compared to open batteries.
E. The starting performance of these batteries is better than open type batteries.
We suggest ...
WINNER batteries are only closed type and have the latest technology. In addition to top starting performance, build quality and operating problems of less than 0.1%, they offer one of the longest average lifespans in the world.