Can this unit really operate just below 60V? I have a 58V battery pack, purchased this meter (ID B001B6N2WK), but it flashes when I connect it.
782900
I have been able to operate my meter at 60v and below with no problems. I have 3 meters and they all work well.
782901
Should be able to operate to 60v.I usually try not to operate too close to any voltage limit because of any transient swings on a line with stray capacitance/inductance can create voltage trabsient peaks or spikes Also lightning or other EMF pulses can potentially overrange and damage the meter.Its never a good idea to operate close to spec limits.
782902
I have attached it to both a 36v and 48v electric bike. It worked perfectly. I'm about to buy another one.I use it to track battery capacity. It is my battery fuel gauge.
838171
I don't know. I don't see 7.2 on the meter either. I just use it to test AA, AAA, and other small household batteries.
1416041
You can try it, worse case just send it back, but I don't think it will work. Maybe you could see if you can mount it on your meter. It's a very helpful tool.
1326685
Need clarification. Are the error codes displayed when connected to the solar panel or lipo batteries after having used on solar panels? Not sure but these are made to check voltages on cells of a battery. The batteries it's designed for are 3.7v on each typically charged to 4.6 or so. If the volage exceeded that it may have damaged the circuitry. Either way they are so cheap I would just get new ones.
964405
yes, the unit has DC Settings of 1.5, 6.0, 9.0, 12.0---so you would put in the range just higher than your battery voltage and read the actual voltage output. It should be at least 90% of the labeled voltage to work properly, and you would need to ignore the color of the lights except when the battery label voltage is exactly the same as one of settings on the DC dial. Jim B
792507
This didn't happen for me. It could either be a faulty meter, or it is getting 0.0 volts.
353901
How did you try to measure 24 volts? If you used 2 twelve volt batteries in series make sure they were connected one + lead to the other - lead. Or try to measure 3 nine volt batteries snapped together. You should get 27 volts. I think there is a calibration pot on the back of the meter. It is very small and you will need a jewelers screwdriver to adjust it. Make sure the red lead goes to the + termingal of the battery. Try again and let me know. You could have a bad batch of meters. Mine worked very will on my power supply that goes up to 27 volts. One last thing...are the 24 volt batteries you are measuring good batteries? The meter might be telling you that they are not. Hope this was useful. Also be aware that all meters have a percentage of error. Some are + - .1% + - .01%. No matter how expensive the meter it will have error tho very small. The smaller the error, the larger the price. These cheap but beautiful meters are good enough for battery monitoring. I wouldnt use them to build a computer power supply.
1020691
The unit I have uses a 110v to 12vdc 500mA 6w power supply. I don't know if they have a comparable 22Ov power supply. Also, just a note for all that I did not mention in my original review: Be sure to 'push' the charge indicator light button to start the charging process. Just because the light is on, it doesn't mean it's charging.
1221921
If your measuring the voltage of a battery (18650) with this module it becomes more tricky. The battery is only 3.7 volt. The module requires 4.5-30v supply voltage. You would have to have a separate supply to power the module with at least 4.5 volts, and then measure the battery voltage (with the third wire).If your testing voltages on a battery buy a multimeter. I use this module on a variable power supply to measure the output voltage
958964
I left it plugged in a 3.7v 350mah battery over night by mistake. The battery went down about 0.1v within 8-10 hours of continuous usage. It seems less accurate when the battery is below 4 volts...
1284870
It will default to 12V unless the ambient temperature is fairly low (under 50 I think), in which case it'll automatically start at 12V Cold/AGM. It says it'll do that in the specs list but I've seen it happen first hand when I charged a battery in normal temps, then charged one in cold temps and it started off in the 12V Cold/AGM position when I turned it on.
29981
A voltage meter won't tell you whether the batteries meet manufacturer specs and supply full power under load. You need a battery tester like the ZTS to do that. I just received an order of Duracells that failed that test - the second such order of CR 123 batteries from Amazon that did so. The first order was Energizer brand. I learned of the deficiency the hard way when my security system started sending off false alarms after I installed the batteries. I talked to a battery shop specialist, who said that happens when they resell factory rejects.
2176199
Several possibilities for the problem. Use quality batteries such as Duricell and be sure to buy from a supplier with a high turn-over. Be very sure that the battery's are fresh. Even a dead battery will measure 1.5 volts but it will not be able to deliver the required current. When operating with low voltage, contact resistance is always a problem. To minimize this resistance issue, always spin the battery's after installation, this polishes the contacts. There is always the possibility that the unit is defective. I have not had any problems with my unit..............hope this helps.............Bill
2266301
What voltage is the battery pack. This device is designed for 250V AC. Melted contacts are a sign of over current through the conductors. The. Fuse may be to large for this device.
1031245
No. The meter must be powered by a voltage between 4.5 - 30 VDC. It will happily measure the 52 VDC source, but you will need either a voltage regulator or a separate power source (like a battery pack) to power the meter. If you use a battery pack to power it, you will need to connect the (-) terminal of the battery to the (-) connection of the voltage source you are measuring so that they will have a common ground.
1157878
Regardless of what vehicle it's in or if it's running packs in parallel or series I've always stopped at 3.6v/cell when the pack is at rest. You could possibly go lower and still be safe, however I noticed that my packs lasted a lot longer stopping at 3.6v/cell. Also I found these alarms to be rather quiet. Just a heads up. Enjoy �
1028194
This might be a repeat answer. If you have pluged the unit into another outlet and the light still flashes I think you should return it.