Battery Load Tester 100 Amp 6/12V with Metal Switch

I have used this type of tester for many many years. This works just fine. For diy people, read instructions thoroughly. It works.

Tester works as should very accurate ease of use would be a great addition to your toolbox

No complaints with this one. I checked both my motorcycle and car battery successfully. Diagnosed a bad motorcycle battery and a good car battery. Problem with the car was the alternator, not the battery.

Not as sturdy as the ,40 year old version that was lost in a fire.Don't make stuff like they used to.

Does what it’s supposed to do. Good old school device. Good price and quality.

The Q-Tech Battery Load Tester is a Handy Tool to have , I like that it's simple to use and accurate, I use the Tester to check my Jump N Carry Booster after I charge it, Give me spot on readings. Also good for Auto Battery checks as well. Just follow directions and you can't go wrong, Works as advertised, Priced good, shipping is fast, Buy it if you have a need for one of these units,

Ive used it alot since ive owned it trying it on every battery i have. Whether its telling me the truth or not i have no idea how to verify that it gives accurate readings but for now im just going to believe that it is.

I just don't know how to trust the new compact load testers with digital readouts. According to physics, to load test, you must place a small valued, high power resistor across the two terminals that results in a large amount of current between them, then monitor voltage drop or current and see if the battery can provide a sustained amount of either.This box does exactly that, and the heat you will feel will confirm to you that without doubt, a large amount of power traversed its two terminals. The readings I tried on several batteries (one dead) seemed to confirm the status of each.