- Designed to maintain the memory of the on-board vehicle computer (CCU) when battery is disconnected. 
- Prevents loss of certain drivability codes, keyless entry codes, digital radio settings, cellular phone settings and other memory related functions. 
- Prevents loss of radio function on anti-theft radio systems. 
- Use with 9V alkaline battery (not included).

Dimensions: 7.75" X 3.438" X 1.063"

WARNING: Cancer & Reproductive harm