Metal Contact:AAA to AA Adapter Convert the AAA Battery to the Standard AA Battery Size, the Bottom of the Adapter is Sealed with the Metal,Which Makes Sure the Good Contact with the Negative Side ...

But as awesome as it is, it is powered off of not-so-awesome AAA batteries ... from the bottom that makes it wobble a bit, but they’re guessing that they get about 2x the battery life now.

How long a battery can power a car if the charging system fails. A higher score reduces the risk of failure if accessories are left on. The AAA Premium BAT8451RAAA is part of the Car Batteries ...