I have never used a multimeter, but I want to buy one to use for testing batteries and doing other tasks around the house. Seems like a waste to buy a device that only tests batteries.
2006-08-19 06:09:26 · 6 answers · asked by Bangkok Burrito 2 in Consumer Electronics ➔ Other - Electronics
batteries made in many diffrent technology, like normal ones, alkalines, rechargables (ni-cd,ni-mh,li-ion) and so on. they cant be testet completely with a multimeter if you have no knowledge in electronics. but at least buying a multimeter is better idea than a battery tester! here are more details for non rechargable batteries:
a battery shows a higher than its real voltage when you measure it without a load, battery voltage must be measured when its driving a load (a device like a clock etc...). in this case bettery voltage should be near to that specefied on it, so its ok.
if battery is completely run out it has a lower than named voltage on terminals altought without any load, so if you read a 1.5v battery as 1v or something near it (like up to 1.2v) its relatively empty. for a 9v empty battery you may read 7v. these batteries can't power the device anymore.
test of new batteries are easy, eg. for a 1.5v you must read 1.55v or a little higher (because its new and thers no load), 9.5v for a 9v battery and so on... this voltage will drop a little when you supply it to the device and get to the battery's named voltage.
so you have to measure the battery voltage when a device powered by it.
good luck
2006-08-19 06:48:08 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Test Aa Battery With Multimeter
2016-10-20 21:29:52 · answer #2 · answered by dupouy 4 · 0⤊ 0⤋
The amount of amps delivered depends on the load applied. There is a maximum possible rate but this would normally be seen only in a short circuit situation. In other words, if you put a big fat copper wire from the plus to the minus, you will get the maximum battery drain, which is the same as the maximum amp flow. An unused, warm battery will have a higher maximum amperage than a cold, partially depleted one. Instantaneous maximum amp ratings for the batteries you mention are hard to find because they are not important for most uses. Car batteries are rated by "cold cranking amps" because it is important what instantaneous amp rate they can deliver for a short time to start the car.
2016-03-17 00:25:38 · answer #3 · answered by Anonymous · 0⤊ 0⤋
To check a battery put it in the device and turn it on, then use the leads from the meter and check the ends of the battery for usable battery life. The meter can also check continuity (if there is a break) of wires, fuses, light bulbs, etc. Put it on AC and verify you have proper voltages at your outlets.
2006-08-19 14:16:58 · answer #4 · answered by Anonymous · 1⤊ 0⤋
Buy battery tester. It puts them "under load" (draws a small current.) If you just test voltage with the DCV
(direct current voltage) scale, and the battery is not under load, even a wasted battery may read full voltage. When under load a dead battery drops way off on voltage.
2006-08-19 06:17:50 · answer #5 · answered by helixburger 6 · 0⤊ 0⤋
Depends what you want to test. You can test the voltage and see if it's in specs for the specified chemistry of the battery, you can put a load on it with the ammeter in series and see if it can provide the current or put the load and test to see what voltage can the battery supply at the given current draw.
https://www.electrikals.com/
2015-08-03 22:36:18 · answer #6 · answered by Robert 4 · 0⤊ 0⤋