UPS battery question ??

[Abarbarian]

The battery on me Belkin UPS has packed in and a new one is around 24 pounds inc postage. So I'm wondering, can I hook the ups up to a car battery and will the ups charge it and will the shutdown software still work. Car batteries are only a fiver at me local scrapyard.

 

[Ian]

Technically you might be able to, but unless you have the specs of both batteries I really wouldn't in case you break the UPS. It probably is a 12V sealed lead acid battery still, but unless you know what you're doing I wouldn't chance it (IMO ).

What's the model number of your UPS, as it might be available somewhere cheaper

 

[Abarbarian]

12V 34W
HR 1234W HR 1234W is specially designed for high efficient
discharge application. Its characteristics are high energy
density, small footprint and high discharge efficiency. It can
be used for more than 260 cycles at 100% discharge in cycle
service, up to 5 years in standby service.
Specification
Cells Per Unit 6
Voltage Per Unit 12
34W @ 15min-rate to 1.67V per cell @25 (77 )
Capacity
9Ah @ 20hr-rate to 1.75V per cell @25 (77 )
Weight Approx. 2.5 kg(5.51 lbs)
Maximum Discharge Current 130A(5sec)
Internal Resistance Approx. 19 m
Operating Temperature Range Discharge: -15 ~50 ( 5 ~122 )
Charge: -15 ~40 ( 5 ~104 )
Storage: -15 ~40 ( 5 ~104 )
3 (77 5 )
Nominal Operating Temperature Range 25
13.5 to 13.8 VDC/unit Average at 25 (77 )
Float Charging Voltage
Recommended Maximum Charging 3.4A

Current Limit

14.4 to 15.0 VDC/unit Average at 25 (77 )


Its a Belkin 625VA PRO Gold UPS. I did a long search and £24 was the cheapest I found. Here is the Belkin info.

http://www.belkin.com/uk/support/article/?lid=enu&pid=F6C625u220V&aid=7406&scid=0

If it would work I can hook up a solar trickle charger aswell. Benifits would be much longer standby time which would be useful.

Thanks.

 

[Ian]

Yeah, cheapest I can find too:

http://www.commtech-it.com/product_ecom/details.php?prod_id=93

Hopefully someone that knows more about electronics might be able to say if the car battery would work

 

[Abarbarian]

Thanks Ian thats a pound cheaper than the link I have. Its a bit of a sod as a new UPS can be had for £19.99 or £24.99 with shutdown software.
You can get the same software for free legally on the net. I recon those ups's are made by a firm that deals in really big server ups's as I would swear it is the same picture on both sites.

 

[Madxgraphics]

You can get it even cheaper if you go Screwfix...I know its a builders merchants, but they supply back up batteries fo Fire Alarm Panels which have the same or similar ratings to what you need..And for as cheap as £11.99

 

[Abarbarian]

You can get it even cheaper if you go Screwfix...I know its a builders merchants, but they supply back up batteries fo Fire Alarm Panels which have the same or similar ratings to what you need..And for as cheap as £11.99

I'll have a look when I have time. I recon it will be ok on a car battery though and am going to try it out later in the week.