Does the tester correctly work with rechargeable batteries?
190538
Sorry I can't answer this as I purchased this as a Christmas gift for my son-in-law and obviously hasn't been opened yet.
190539
I haven't tried it, but voltage is voltage. There's no reason it wouldn't work.
1659995
Make sure you have the battery positive on the tester. Also try other batteries. If not that you may have a bad tester.
1379009
Yes, this would be an excellent use for this tool. Be sure to check a known power source such as a receptacle to ensure the tester is working properly.
293717
I've had difficulty with this issue, too. I think the battery tester works most accurately by just letting the battery rest.
1621598
No, it does not test watch batteries! There are other specific testers for watch batteries.
323793
I feel that the tester is quite accurate. If it is failing the battery, the battery is definitely junk. Sometimes it will pass a battery and the battery will start the car fine and is able to put out good cranking amps for a short time but then the battery may not have very good reserve capacity such as if the customer leaves their key on for a half hour the battery may die quicker than it should. But the age on the battery is a pretty good indicator for this sort of battery deterioration. It's a simple tester that works better than 2 others I have tried.
1384612
This thing was badass thanks again. Yes it tests batteries. Aka direct current
1232900
In my opinion, this tester is suitable for detecting good from dead batteries, and that's how I use it. For anything that is not full but has some life left in it, I would treat it as dead and in need of charge.
1384614
You can use the volt meter to measure the voltage across battery terminals. That will give you an indication whether the battery is dead or alive. However, strictly speaking it is not a battery tester, since it does not draw any load current from the battery.
1397550
Yes it does. There are two chrome buttons (contacts) on the left front for testing 9volt batteries. You also must set the dial to 9V. Hope that helps.
1429088
while there is a 6V spot on the tester, I don't know if it will work with the battery pac or not.
450943
I've never tried it with rechargeable batteries. But I don't see why not...,
825266
Stated battery voltage is unimportant. Tester measures specific gravity of sulphuric acid/water mix in flooded-electrolyte, lead-acid batteries. If you can safely get to the electrolyte in each cell, you can make your measurements. This tester does not have a thermometer attached for temperature compensation calculation. You will obtain higher confidence in the accuracy of your measurements if electrolyte temperature is at or very near 68 degrees F. Cheers!
1843827
Should be able to test 6 volt battery one at a time, not all connected together.
1949281
Hi R.W., this tester will certainly tell you if smaller batteries are in good shape but it is kind of over kill as it works by resistance testing. Kind of like plugging a toaster onto your battery. It will draw a lot of juice off the battery in just one test with smaller batteries so if they are weak you will know it fast and they will likely need a recharge afterward. I use it for 4 and 8 D size batteries for starting large diesel engines. I would suggest a lighter amp load tester for what you are doing. Something around a 50 amp range. Hope this helps. Paul paulmgriswold@aol.com
1181120
I have not used a voltage meter on the battery to test the accuracy of the battery tender. I just know that the tender works for me.
1762849
I had to hold the battery firmly against the exposed contact coming from the lcd display part of the tester. I inserted the battery just as I would put in into the hearing aid. It takes a couple of seconds for the true battery condition to register. If you just insert it and then release, the battery will show as full charge. If you hold it for several seconds, the actual condition of the battery will show. Whenever my hearing aid shows low battery, this tester confirms that.