Does it have a button or something to test the battery?
2091362
Yes, there is a button to test the lights on the battery. It blends in to the case.
2091363
This unit has to be wired in and charges until needed should the power go out.
2091364
Yes, there is a test button, however this is not run by batteries, it is an emergency light. It goes on when the power goes off so you wire it and connect it to power.
360476
no there is no separate unique lihht just for that purpose.way to test the battery is to open the window with alarm on
1586860
It has a 4 dotted meter. You push a button and btw 1-4 dots light up to tell you how much battery life is left. I find the meter to be accurate.
2001251
Yes. You can also hold the power button while charging, and it will speak out the battery's status.
1902791
No It does not have a battery level indicator, however the on indicator will flash when battery is low. Jerry
1946237
only if programed to do so. the one I have has 8 times to turn on and off at a certain time. It does have a bypass button to test pump.
87794
Yes. A single AA. I'm also a little paranoid about this thing draining that battery, so I usually keep a little piece of paper between the contact and the battery until I need to use it. Would suck to not be able to test battery life if the battery in the battery tester is drained.
685357
I don't think so, didn't see one. it will probably beep twenty times and cut off when battery gets to low. hope this helped.
1625371
yes you push a button next to screen and it shows you a battery with bars like a cellphone
1148943
No. Looking up at the detector you see a dim green led that is constantly on verifying that the 110 volts is connected. The detector also has a flashing red light that blinks every 30 seconds when the battery is good and a battery test button. The test button also functions as a HUSH button if pushed while the detector is chirping for a low battery condition or after a false smoke alarm. This Hush button will silence the chirping for 13 hours and can be re-pushed for up to seven days.
1719197
Software runs in the system tray that will allow you to periodically "self test" the battery. I do this on a monthly basis.
2035436
Take battery door off, there is a small knob in there. Use a small screwdriver. The seconds are not marked off. Just have to estimate.
755416
No, it only tests the battery, but it is the most accurate tester to detect bad cell
571644
You must insert the Red Pin with the round top into the small hole on the front of the system. If you look at the front of the device you will see it next to the red battery test button.
1190076
Has a power button on back that is lit up & will flash when battery is low. Charged mine about 2 weeks ago & have yet needed to recharge it. But has no battery level indicator.
386173
No is does not. Determining battery capacity is complex and there is a device that can do it but it it expensive. I will give you a link that will give a lot of battery information. http://batteryuniversity.com/index.php/learn/article/testing_deep_cycle_lead_acid_batteries
88570
No, only when you first plug it in it does a test beep of some sort. After that it silently displays voltages until one of the cells drops below your set limit.