Just really good batteries
The back-up battery in our home security system was about 7 years old and I decided that it was time to replace it. Our alarm company wanted something between $35-$38.00 for a new battery; I thought that I could do better. These folks had the exact same battery only 7 years newer and about $20.00 less, and that's including shipping! I order it on a Saturday afternoon/evening and UPS delivered it Monday afternoon.
So, it showed up at our door really fast, it is the exact same battery as the original and it works fine. GOOD DEAL;-)
P.S. I checked the old battery after I installed the new one...it was fine good. I have used Yuasa batteries in my motorcycles, uninterrupted power supplies(UPS's), and now the security system...they just work well and I highly recommend them.
Verified purchase: Yes | Condition: New