Gadget Review on MSN

Silent Battery Killer: How Your Car's Keyless Entry Could Leave You Stranded

Keyless entry systems drain car batteries by staying constantly active, reducing battery life from five years to three and causing unexpected $300 replacements.
Drive

How to replace a car key battery yourself

Unlocking your car without a traditional key is a godsend for those times when you're in a rush or your hands are full. RELATED: What to do if you lock your keys in your car RELATED: What to do when ...