How often should I change the battery filter in a Ford Escape Hybrid?

I'm not referring to the regular engine air filter, but the filter that works with the Ford Escape Hybrid's long life batteries.

Thank you.How often should I change the battery filter in a Ford Escape Hybrid?If I remember correctly, it needs to be changed every 15K. Not 100% positive. It's really easy to check yourself so just keep an eye on it. If it looks dirty, have it replaced.How often should I change the battery filter in a Ford Escape Hybrid?Never heard of a battery filter. Are you sure you heard that right? Look in your owner's manual for filter-change information to see if that's listed. Or go to a dealer (not the one you bought the car at) and ask the service department about it.



Sounds like someone's trying to scam you.