Here are some places that can rebuild your batteries. Most of the time with more capacity than when new.
http://www.batterydoctor.net/
http://www.primecell.com/pctools.htm
http://stores.ebay.com/Battery-Pack-Rebuilders-LLC
http://www.allpowerbattery.com/BATTERY%20PACK%20REBUILDING.htm...
hholmberg:
I am not disagreeing with you. Just trying to explain why the alarm companies are saying not to put one in. I made a recomdation for a for sensor that should work well for his application. I am glad you have not had any false alarms, with a good install you should not. By using a...
Here is another option / opinion. Most places will not recommend a "motion detector" for the garage. One of the main reasons is when they say "motion detector" they are referring to Passive Infrared (PIR) sensors. They are the most prevalent technology out there. Notice I said most prevalent...