What does a vehicle battery drop tester do?

Question

how does a drop tester work

Answer 1

Drop tester or draw tester?
a draw tester tests to see if there are things excessivly using battery power when the car is off.

Answer 2

Battery Drop Tester

Answer 3

Well, I have not heard that term before.
Let me tell you what I have heard and maybe we can make sense of this.
A Load tester- creates a load on a battery you read the voltage before, during and after. If you have fully charged battery meaning on a (12volt battery) you have 12 volts or better,
you load the battery at half of the rated cranking amps for 15 seconds
the volts should not drop below 9.6 volts during the test
and the volts should recover withing 15 seconds to above 12 volts after the load has been removed.

Now if we are talking gravity test you are talking about specific gravity on the battery acid which is seldom checked on a sealed battery.
If you want to check voltage drop on a circuit you need a digital voltmeter you can do many voltage drop checks on a wiring system.
Does any of this Help?

Answer 4

Sounds to me such as you have have been given a parasitic draw someplace on your electric device. First close off all the motor vehicle's lights and upload-ons then close all the doorways. With the battery interior the motor vehicle, first get rid of the detrimental battery terminal. Now, utilising a multimeter set to the DC volts scale placed one probe on the detrimental terminal of the battery and the different probe to floor. examine the meter. in case you examine various quarter of a volt, you have a draw someplace. Troubleshoot the draw via having somebody get rid of fuses separately till you notice the meter voltage drop. once you notice the voltage drop, you’ve got here across the circuit in which you have a means drain. thoroughly learn that circuit, section via section, till you discover the reason for the voltage drop. Isolate and restoration the concern. If this does not restoration the concern, take greater beneficial look after some days and spot that each one the lights are off earlier you stroll faraway from the motor vehicle for the night. it ought to be something so uncomplicated as a door that hasn't closed completely, inflicting an indoors mild to stay on in a single day or perhaps a foul turn on an decrease than hood or trunk mild. Any of those are greater beneficial than adequate to do the task. i've got finished it myself, greater beneficial than as quickly as. regularly, an entire battery value will guard it. Even a leap start up and working the motor vehicle for an hour or so could construct your battery up adequate to get you going back as long as your alternator is doing its task. There are diverse tactics that gets you the respond you want, that's barely between the the thank you to end the comparable element.

Answer 5

It puts a load on the battery to see how much the voltage drops. You could do the same thing by running the starter for a while, but that will overheat and possibly burn out the starter, so they use a tester.

Answer 6

It will put a large load across the battery terminals, it will show if there is a high internal resistance on the battery, i.e how much power it can output, if there is high internal resistance then it will (even though the voltage is high) only give out a small amount of current.

Answer 7

It puts a heavy resistive load across the battery when measuring the voltage. http://www.toolcrew.co.uk/catalogue/Product-Details.jsp;jsessionid=08434A0CDB173335907953FACF335833?p=1&ps=18&cID=68&search=&searchString=&cTitle=Battery+Maintenance&pID=1486&pCode=BT91%2f3&pTitle=Battery+Drop+Tester+12V

Answer 8

breaks batteries
he holds them in both hands arms outstreched and drops batteries .
they can be picked out of the crowd by the sixe of there massive shoulders !!

Answer 9

checks the acid in the battery

Answer 10

TEST THE ACID LEVEL FOR CHARGE