I got a low battery on mine today as well. I need to change battery tomorrow.
I use a lot of 2025s with home automation sensors ... this is a decent deal on eBay for Energizers.
http://www.ebay.com/itm/230960999394
I use a lot of 2025s with home automation sensors ... this is a decent deal on eBay for Energizers.
http://www.ebay.com/itm/230960999394