The Miata/MX-5 battery is set up in the trunk room. This means that a special battery is needed.
There are some cases when the users trying to lover the expenses use general purpose items for the battery’s liquid refill.
Because of the battery’s characteristic acidity the trunk room becomes smelly. The surroundings might be contaminated with dilute sulfuric acid which is very dangerous.
For this reason, please always use the specified battery.
Maruha recommends the maker’s genuine GS battery.
It is an excellent, very efficient battery.