Portable and useful
Never need to guess the battery level again
FREE size, battery from 1.5V to 9V are testable
Can test :AA-size battery, AAA-size battery,  C-size battery,  D-size battery,  9V battery,  button cell battery,  alkaline battery,  lithium battery, rechargeable battery
Three colored indicators give accurate and easy battery power reading
Indication: red-need to change, yellow-prepare to change soon, green-battery is ok

Good for any battery user
Let's test battery on the move, anywhere any time
Don't guess which batteries to keep and which to throw away
Size: 32mm x 25mm x 78mm