Hi. I want to install two Hikvision fixed turret POE Cameras in a remote location (probably 6mp). My question is can someone give me an idea of the size of battery that I would need to power these two cameras for 24 hours? Many thanks
Power Consumption Question
- Thread starter Mechanoid
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Gargoile
Getting comfortable
sebastiantombs
Known around here
Without the model number it's a guessing game, but for the sake of argument here....
Let's say each camera uses and average of 7 watts. That means 14 watts per hour, 336 watt hours per day. For insurance that you have enough capacity that means you need to plan for a battery system capable of 772 watt hours minimum, to allow for not getting there to swap out batteries. To help preserve battery life, rechargeable batteries in these capacities aren't inexpensive, another 25-50% capacity should be added, plus that helps in a worse case scenario. That rounds it up to roughly 1000 watt hours.
Let's say each camera uses and average of 7 watts. That means 14 watts per hour, 336 watt hours per day. For insurance that you have enough capacity that means you need to plan for a battery system capable of 772 watt hours minimum, to allow for not getting there to swap out batteries. To help preserve battery life, rechargeable batteries in these capacities aren't inexpensive, another 25-50% capacity should be added, plus that helps in a worse case scenario. That rounds it up to roughly 1000 watt hours.
Yep. Not exactly sure on model yet but reviewing Hikvision Cameras it seems that the average consumption is around 5watts?
sebastiantombs
Known around here
That's normally without the IR illuminators on. I have mostly Dahua cameras and they seem to actually run around 6 watts, the 7 watt number is a rule of thumb to allow for overhead.
I want to monitor my driveway entrance which is about 70 metres from the house where the nvr is located. I have 8 poe cams direct to the nvr.
There is no power at the driveway location so it was suggested that I use a solar arrangement to power them (Deep cycle battery with solar panels to charge). Then use ubiquiti gear (powered from the same source) to send the video to my Lan for the nvr to access.
Thanks
IAmATeaf
Known around here
I could dig a trench 70 metres long but I have a 2 metre veranda around the house so can't get the cable into the house without digging up the slab. Footage wouldn't be via SD it would be via Ubiquiti Nanos (Wifi) back to my Lan. The NVR can see video from the LAN.
biggen
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- May 6, 2018
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My post from a while ago to give you an idea of what you are in for: Need some advice on solar power setup...for 3 cams and an ubiquity nanoM5 for power supplied to all.
Adjust power consumption up or down depending on equipment you are running. Math is still math.
Adjust power consumption up or down depending on equipment you are running. Math is still math.
Gargoile
Getting comfortable
I think it would be more accurate to get a battery that you can use with a solar charger that's rated for heat/cold and try it out. There are losses with solar chargers, batteries drain when idle, heat/cold affect battery capacity and lifetime, etc. There are lots of variables with power usage, including IR usage, how much it has to re-focus, how much power the WiFi takes, on-camera processing, etc. (For example, the more data the cameras send, the more power you may need. A static image may not need to send lots of data.) You will also get losses with PoE conversion and powering a switch. These losses may exceed what you need to power a camera.
There are likely lower-power cameras out there with integrated WiFi. Whatever you do figure I'd at least double the capacity to allow for cloudy days, etc.
There are likely lower-power cameras out there with integrated WiFi. Whatever you do figure I'd at least double the capacity to allow for cloudy days, etc.