does it have some sort of cutoff built in to protect the battery or is the low voltage cutoff built into batteries?
334412
I purchased this adapter to use with my older tools, It has nothing to protect the batteryit just allows you to use newer battery in your older toolsit does just that, and only that
334413
The adapter only allows the use of batteries that otherwise wouldn't fit, Neither the adapter nor the battery (or the equipment it powers for that matter) contains any low-voltage cutoff circuitry that I know of. You will know the battery is low on charge simply through its exhibition of degraded performance. Hope this helps.
334414
All it has are metal leads connecting the "new" battery to the "old" tool receptacle. That's it. This is only for connecting an 18V battery to an 18V tool. There are no electronic components in the adapter.
1941940
It's designed to work from the 12V ports. If you have a port that connects directly to the battery (one that's on all the time it's the preferred one) otherwise you can use the port that you have available. You can't enclose it there has to be air circulation around it.
1440645
Hello Kelly, From my experience it saves your settings. I think you can think of the memory in this more like a flash drive. when not powered it still keeps the info. it does not have a battery inside, but i dont think it needs one. it is also part of your alarm system and would be using the juice from its battery in case of a power outage. hope this helps
747125
Uses standard 9volt battery, but, if I rmember correctly, like most modern smoke detectors, it is the not the terminals that hold in the battery, so there are contacts that the battery terminals rest against. the cover will not close without the battery present in most new smoke detectors, since stupid people take out the batteries rather than deal with why it is going off (wrong location, burning thier food, etc.)
198841
It has a proprietary rechargeable battery inside of it. I had to take it apart because the power switch broke and fell inside of it. Build quality was... less than to be desired but it does zap.
1729848
I dont recall, I always had it plugged in, the bottom has a cover that slides on to cover it. It works, we caught the girl stealing from us.
1127701
It has a reverse polarity prevention relay. If the battery being jumped is completely dead, it won't trip the relay to pass the current from the internal battery. It is a bad design
873776
An electric motor powered by a battery. So there is no problem from electrocution from a low voltage battery.
905741
Generally if the seller doesn't claim that it is "protected", you can be quite sure it is NOT. To protect, they have to add a protector disk, typically at the bottom of the battery; and connect the + & - terminals to the protection circuit. As such the battery will cost more than the same battery without protection. So check the title & description, you should be able to decide if it is protected or not.
1093737
Answer here...doesnt say. But alot of batts do internally. For short circuit explosion protection.
1014411
Hi, it does shut down so it doesn't draw off battery power. I made mine I to a portable meter for installs and that saves my portable battires.
540667
No, there is over-charge protection built into the battery. With that being said, I still remove my batteries when I see the charge is complete. The 18 month warranty doesn't hurt either :-)
699117
even if you do get it to turn off just having batteries in it will cause the batteries to lose charge slowly. rather than storing batteries outside any device in a BOB just cut a peace of plastic, ( from a coffee can lid or blister packaged item) and place it between the battery and the contacts. This will keep the batteries from loosing there charge, keep the device off if a button or switch gets hit accidently in your pack and save you room in your pack.
897821
Mine does not. Instructions & diagram cutaway do not show a battery backup. Hope that helps.
1374944
This is just a load tester it tels you the volts and percentage of the battery. If you are looking for a cut off try a small arduino and prorgam it to shut off.
1517300
Yes it has the blocking diode built in. It is a small black block right on the back on the unit where the wires come out of it. I have this now and have used it for 2 summers charging my boat battery for trolling and fishing. Does a great job. Light weight and easy to deal with.
1535115
There seems to be a battery inside because I have unplugged this several times and it keeps the settings. BTW, I really like this unit. Only issue is the instruction guide, but once you figure out how to do the setting this unit is great.