You could regularly check the acid concentration and liquid level in your battery.
This can only be done on lead acid batteries that are not "maintenance free".
Clean the top of the battery, then open the plugs.
Pay attention: There is concentrated sulfur acid inside. Use acid-resistant gloves. Use splash goggles. Make sure a water tap is nearby, so in case you could flush the affected areas with water. There should be an marking indicating the needed fluid level, either on the side of the battery or under each plug. If you cant find a marker be sure that the lead plates are fully covered with liquid. Do not overfill, too much liquid is dangerous for the battery. Top off the liquid with distilled water, make sure nothing else enters the battery.
After filling the battery, use an electronic controlled battery charger to fully charge the battery, let the plugs open during charging. Attention: During charging explosive hydrogen gas fumes out, make sure the area is well ventilated.
After charging the battery let it rest for half an hour, then use an acid hydrometer to check the acid concentration of each cell of the battery: If there are large differences in the acid density between the cells there is a cell fault and the battery needs to be replaced. If the acid density is not in the right range (about 1.28 g/cm³) the battery also needs to get replaced. Close the plugs, clean the battery terminals and install the battery in your car.
I recommend to use non "maintenance free" batteries of an reputable brand and to annually check the battery before winter