Using condensed water of Air Conditioner to top up a battery

AI Thread Summary
Using condensed water from air conditioners to top up flooded lead acid batteries is a topic of debate. While some users report success with this method, concerns about contaminants, such as dust and algae, are prevalent. The consensus suggests that while condensed water may be acceptable in some cases, it is not as reliable as distilled water, which is recommended for battery maintenance. Filtering the condensed water can help reduce larger impurities, but it may not eliminate all potential contaminants. Ultimately, using distilled water is advised for optimal battery care.
signode
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Hi;

As we know that flooded lead acid battery needs to be top-up (watering) after passage of some time and it is recommended to use distilled water.
Many people say that water condensed by Air Conditioner is also very good to top-up the battery. Is it true?
 
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Rain water.
 
I have used water from a dehumidifier for many years.
 
It would make me nervous because fan+coil=dust collector.
 
russ_watters said:
It would make me nervous because fan+coil=dust collector.

There can be things that collect like you say. Usually they settle to the bottom of the bucket and are thrown out with the tail end of the water.
 
Does proper distilled water coat that much that you want to degrade your battery? All of these suggestions will have contaminants.
 
Windadct said:
Does proper distilled water coat that much that you want to degrade your battery? All of these suggestions will have contaminants.

You have no idea how many batteries I have to maintain. I have used this method successfully for years.
 
signode said:
Many people say that water condensed by Air Conditioner is also very good to top-up the battery. Is it true?
It may be true, in some cases. But in some climates I'd expect to find algae, the dripping pipes can be green with algae. Filtering would at least remove the bigger clumps.

Still, I think your boss would probably prefer that you used distilled water in his expensive batteries. :wink:
 
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