Backup battery for Cctv camera + dvr

[CapeTownchic86]

So I have a gel battery but it doesn't keep my cctv camera on for longer than 15min

It is fully charged and keeps my router on when I attach it to the battery (without the cameras attached).

The router and DVR cameras are not in the same place.

I checked my DVR specs and it says it's 12VDC
We have 4 cameras attachgrd to the DVR.

Do these cctv cameras usually use a lot of power?

Trying to keep them on during loadshedding as there has been lots of breakins etc

 

[CapeTownchic86]

So I have a gel battery but it doesn't keep my cctv camera on for longer than 15min

It is fully charged and keeps my router on when I attach it to the battery (without the cameras attached).

The router and DVR cameras are not in the same place.

I checked my DVR specs and it says it's 12VDC
We have 4 cameras attachgrd to the DVR.

Do these cctv cameras usually use a lot of power?

Trying to keep them on during loadshedding as there has been lots of breakins etc

My gel battery is this one. I have charged it so I can see it's full

 

[FNfal]

https://www.geewiz.co.za/ups/150293...3xoMdW81olDJtLz9H3dtWfAWriQoPMgBoC8wYQAvD_BwE
I have three of these and only run the critical cameras during load shedding .
I use only one for the CCTV .
Small screen on joy stick and NVR as well as a couple of cameras .
It lastes about three hours because the NVR sucks power .
The unit replaces the PSU of the units you want to be on the mini UPS, fit and forget unit .

 

[CapeTownchic86]

https://www.geewiz.co.za/ups/150293...3xoMdW81olDJtLz9H3dtWfAWriQoPMgBoC8wYQAvD_BwE
I have three of these and only run the critical cameras during load shedding .
I use only one for the CCTV .
Small screen on joy stick and NVR as well as a couple of cameras .
It lastes about three hours because the NVR sucks power .
The unit replaces the PSU of the units you want to be on the mini UPS, fit and forget unit .

Thanks. So i can just unplug the cameras I don't need from the back of the DVR?

I've even not plugged in the TV that it's connected to becasue I thought the TV was the thing sucking the power and just viewed it on my phone app.

Does altering the camera resolution save power or won't it make a difference?

 

[znh]

CCTV uses about 10W per camera and I guess about 40W (Hikvision nvr uses -- googled it) for the NVR so very little power.
If you are going to use 50% capacity then your battery should have about 600Wh (12V * 100Ah * 50%) which should be enough for eg 6 cameras and the NVR for about 6 hours.

Does the voltage go down under 12V when connected to the NVR & cameras for 15 minutes? If so your battery might not be good anymore.

Edit: after some googling it seems like you need to supply the NVR model. These vary a lot and if it supplies POE they can consume quite a bit of power

 

[CapeTownchic86]

CCTV uses about 10W per camera and I guess about 15W for the NVR so very little power.
If you are going to use 50% capacity then your battery should have about 600Wh (12V * 100Ah * 50%) which should be enough for eg 6 cameras and the NVR for about 8 hours.

Does the voltage go down under 12V when connected to the NVR & cameras for 15 minutes? If so your battery might not be good anymore.

When the battery did die I checked it with the charger and it still says it was more or less full so I wasn't sure why it didn't stay on for long.

Does a router not use so much power?

 

[TheChamp]

So I have a gel battery but it doesn't keep my cctv camera on for longer than 15min

It is fully charged and keeps my router on when I attach it to the battery (without the cameras attached).

The router and DVR cameras are not in the same place.

I checked my DVR specs and it says it's 12VDC
We have 4 cameras attachgrd to the DVR.

Do these cctv cameras usually use a lot of power?

Trying to keep them on during loadshedding as there has been lots of breakins etc

12Vdc and what else? There should be current or power specs.

 

[TheChamp]

When the battery did die I checked it with the charger and it still says it was more or less full so I wasn't sure why it didn't stay on for long.

Does a router not use so much power?

Charge it until it's full, connect a 12V appliance with known power consumption, observe how long it last and give feedback.

No, the router consumes very little power.

 

[FNfal]

Thanks. So i can just unplug the cameras I don't need from the back of the DVR?

I've even not plugged in the TV that it's connected to becasue I thought the TV was the thing sucking the power and just viewed it on my phone app.

Does altering the camera resolution save power or won't it make a difference?

Resolution will not make much difference .
The mini UPS replaces the PSU of the cameras and DVR/NVR so during lead shedding only the equipment plugged in to the Mini UPS will work .

 

[CapeTownchic86]

Resolution will not make much difference .
The mini UPS replaces the PSU of the cameras and DVR/NVR so during lead shedding only the equipment plugged in to the Mini UPS will work .

Thanks so much

Do you leave the mini ups plugged in when it's not loadshedding or do you unplug when power comes back on?

 

[FNfal]

Thanks so much

Do you leave the mini ups plugged in when it's not loadshedding or do you unplug when power comes back on?

Yes the mini UPS replaces the PSU of the units that you want to work during load shedding , it is a fit and forget unit .

 

[CapeTownchic86]

12Vdc and what else? There should be current or power specs.

oh wait it says on the manual 7.5W without HDD - not sure what HDD is

 

[CapeTownchic86]

here is the screenshot

 

[TheChamp]

oh wait it says on the manual 7.5W without HDD - not sure what HDD is

Hard disk drive.
That is super low, I am afraid all the signs point to a bad battery.

 

[CapeTownchic86]

Hard disk drive.
That is super low, I am afraid all the signs point to a bad battery.

Thanks for the advice.much appreciated

 

[znh]

Hard disk drive consumes between 5-7W. so the NVR should be around 15-18W with the hard disk recording.
Just to confirm, you are directly connecting the battery to the equipment? or going via an inverter to 220V?

The "router" that you mention, is this a POE (power over ethernet switch)? does it supply the power to the cameras? These tend to use quite a bit power as they have Power supplies rated for at least 150W. Or is this just a normal switch in wich case it consumes about 5W? Look at the powersupply to tell you how much it uses.

 

[CapeTownchic86]

Hard disk drive consumes between 5-7W. so the NVR should be around 15-18W with the hard disk recording.
Just to confirm, you are directly connecting the battery to the equipment? or going via an inverter to 220V?

The "router" that you mention, is this a POE (power over ethernet switch)? does it supply the power to the cameras? These tend to use quite a bit power as they have Power supplies rated for at least 150W. Or is this just a normal switch in wich case it consumes about 5W? Look at the powersupply to tell you how much it uses.

I had a gel battery with inverter and the inverter has a 3 prong plug adapter that I attached to the back of inverter and plug in the DVR plug into this adapter

 

[znh]

SO when running through an inverter there is another 50W that the inverter self consumes. So worst case we are looking at 50W (inverter) + 18W (NVR) + POE switch ("router") ( 25W per camera connected) 100W

170W more or less, if your battery was still good then you should get at least 3 hours (if you run it longer then the battery will be damaged)
These batteries need to be kept at 100% charge when not in use, if you left it, it will slowly self discharge to a point that it will get sulfated/damaged beyond being useful, Charging it after does not restore it

 

[znh]

Sorry to be the bearer of bad news

Unfortunately Gel batteries/ Lead Acid need to be looked after i you want them to last. I personally think they are a waste of money.

Lithium are much more forgiving (when left idle) but expensive (and you need special chargers that limit the current).

There is no "cheap" option other than running a gennie... noise and fuel costs will be the negatives.

 

[TheChamp]

Sorry to be the bearer of bad news

Unfortunately Gel batteries/ Lead Acid need to be looked after i you want them to last. I personally think they are a waste of money.

Lithium are much more forgiving (when left idle) but expensive (and you need special chargers that limit the current).

There is no "cheap" option other than running a gennie... noise and fuel costs will be the negatives.

I beg to differ, you can design a cheap option that works, just add solar and be amazed just how long your cheap battery lasts.