On the box is listed something about a city water driven back up system rather than a battery back up system. I would like more information on this s
1797884
Water-driven back-up sump pump uses your city water supply pressure to pump water. Its advantage is that the pump won't run out of power like a battery back-up. Its disadvantage is that 1 gallon of city water is used to pump out 2 gallons from your sump pit.
1797885
This is perhaps a feature on another sump pump, but the M-57 is electric (120v) only.
2109246
This system does not have a back up battery but you can always buy a UPS (uninterrupted power supply) battery back up for it. You will plug the back up battery into the outlet and the system into the back up battery outlet. I plug this system above my dropped ceiling in my business and all the wires were ran in the exterior door's molding. The exit button wires were ran through the wall and around the exterior door's molding and connected to the keypad. The UPS can be used on anything like computers, alarm systems or any kind of medical devices that need power to stay on even if there is a power outage. This system does not have a back up battery but you can always buy a UPS (uninterrupted power supply) battery back up for it. You will plug the back up battery into the outlet and the system into the back up battery outlet. I plug this system above my dropped ceiling in my business and all the wires were ran in the exterior door's molding. The exit button wires were ran through the wall and around the exterior door's molding and connected to the keypad. The UPS can be used on anything like computers, alarm systems or any kind of medical devices that need power to stay on even if there... » Read More This system does not have a back up battery but you can always buy a UPS (uninterrupted power supply) battery back up for it. You will plug the back up battery into the outlet and the system into the back up battery outlet. I plug this system above my dropped ceiling in my business and all the wires were ran in the exterior door's molding. The exit button wires were ran through the wall and around the exterior door's molding and connected to the keypad. The UPS can be used on anything like computers, alarm systems or any kind of medical devices that need power to stay on even if there is a power outage. « Show Less
947527
The System has a built in 72 hour lithium battery backup. Of course you can always plug into a UPS as well.
997424
No, this is strictly an AC pump that runs on a standard 110 volt outlet. If you want a battery backup system, that would be a totally different system like "Basement Watch Dog", "Ace In The Hole" etc.
414899
A controller to insure the battery does not get overcharged. Other than wire, wire nuts etc. that is all you need if the lights and water pump are 12volt. If they run on 110-120 volt, you will need an inverter to change the current from DC to AC.
216565
The batterie(s) are not included and no understanable information was provided in the initial delivery of the kit. The little information (two page) booklet was very poorly written by someone that does not have a good understanding of the English language; or technical writing for that matter. I had to write and complain about this. Then I was provided with some workable information on the battery requirements, via email, and a some what unclear photograph to extrapolate from. Because I have a technical background I will be able to work with the info.I would not recommend this kit for someone that doesn't have a good understanding of DC electrical systems. The batterie(s) are not included and no understanable information was provided in the initial delivery of the kit. The little information (two page) booklet was very poorly written by someone that does not have a good understanding of the English language; or technical writing for that matter. I had to write and complain about this. Then I was provided with some workable information on the battery requirements, via email, and a some what unclear photograph to extrapolate from. Because I have a technical background I will be able to work with the info.I would not recommend this kit for... » Read More The batterie(s) are not included and no understanable information was provided in the initial delivery of the kit. The little information (two page) booklet was very poorly written by someone that does not have a good understanding of the English language; or technical writing for that matter. I had to write and complain about this. Then I was provided with some workable information on the battery requirements, via email, and a some what unclear photograph to extrapolate from. Because I have a technical background I will be able to work with the info.I would not recommend this kit for someone that doesn't have a good understanding of DC electrical systems. « Show Less
2143324
Strictly powered by the AC/DC power block. There is no battery backup. I have had it powered off for up to a month and it kept the watering schedule in memory.
1811687
It has been a while since installed it but it uses a mall backup battery which I did test. I forget how that I tested it.
1768770
No, it only Works grid tied. Once there is no power from the grid, it stops working. It is not for back up systems.
1937196
in other words, it's just for a stand-alone, maybe pump (using a 110 pump) water a short distance and then only when the sun is shining on them unless you have a battery and an invert-er - to go from dc to ac.
1623095
FYI: I bought a interstate battery and connect the water indicator probe to the negative terminal so the alarm does not sound. works great. the watchdog batteries are JUNK. don't waster your $ on their battery but the system is great otherwise
1413373
I just use normal batteries out of Walmart. The system is water proof so the water doesn't bother the battery. It is not rechargeable but the system is a great buy I love mine
1138300
I agree with you, someone shoud be making a product that uses batteries that can be replaced, like the old analog battery T.V. Living in Miami 100 minutes is not enuf if the electricitiy is off for days as it is in a hurricane!
2166055
Correction to my previous. The tag says keep SYSTEM dry, not just the power cord.
1165069
The system is solar powered... there is no option for any other power source. It does use rechargeable batteries however (not included). I believe from my tinkering that the voltage state of the battery determines when the pump turns on. When it is above a given voltage, the pump is on, when it drops too low, it shuts off. But I could be wrong.
770707
There is a small "backup" watcg type battery but it is not a rechargable one. Although I am happy with this unit, I do not recommend it if you are wanting to use it without a power cord.
38122
As others have said, it is water powered from the returns. I had four for my 30k pool. I returned them after a couple of weeks. My pool cleaner robot does a better job circulating the water. If they were less expensive they might be worth it.