How To Drop Test A Battery. How to test a car battery for dead cells. OR the battery will bounce and fall over.

To test your battery start by holding it flat-side down an inch or 2 above a table. Preparing for the Test. The meter needs to be set to the DC Volts setting and an appropriate voltage scale if your meter is not self-scaling.
Take a AA battery hold it over a hard surface one that you wont worry about scratching about 2 up and drop the negative flat side unto the surface.
Preparing for the Test. A component or components are drawing current from the battery when they should not be. The test you need to determine the health of a leisure battery is a slow discharge test over 20 hrs using a high resistance load. A parasitic draw test is required when a vehicle battery becomes discharged with the key in the off position.
