Battery Backup Guide

mdrali2001 asked:


hi
here a good friend of mine suggested an interesting thing about UPS.

he said that wee can take two wires from UPS and connect them with a big BATTERY and it will give us backup for more then 6 hour’s.

my question is can it be possible for 12.v UPS to charge a big BATTERY.
if yes then how much time it will take to charge it ?

any other suggestions from your side to use ups with big BATTERY in the place of inverter.

warm regards
Ali

rakesh3722 asked:


i want more back up from ups. i have 12v42ah battery.please suggest me can i do this for more backup?

pn_renju asked:


I have an old UPS rated around 500VA. It uses a 12V 7.5Ah sealed lead acid battery.? I have a 12V 250Ah car battery also. Can I replace my UPS battery with car battery. I’ve heared that it may cause come problem with the charger. If I can not replace the battery can I use the car battery by charging externally?. This is for using the same as an inverter at my home(Any explanation, details, links or schematics wolud be appreciated).

Harish Kumar Mysore asked:


i have an old UPS rated around 500VA. It uses a 12V 7.5Ah sealed lead acid battery.? I have a 12V 250Ah car battery also. Can I replace my UPS battery with car battery. I’ve heared that it may cause come problem with the charger. If I can not replace the battery can I use the car battery by charging externally?. This is for using the same as an inverter at my home(Any explanation, details, links or schematics wolud be appreciated).

G-Spin2k1 asked:


I need to get a surge protector with basic battery back up for my dell tower and monitor. I doubt i’d connect anything else to it that would need battery back up. What size would you recommend? it’s a basic home dell pc tower (not gaming or server usage), monitor is a 19″ LCD. battery back up time just for in case of emergency saving documents and safe computer shutdown. Thank You.

~G

kings asked:


I was searching for a UPS for my computer and found one which says 1000W / 2000VA, DC 24V

This means connecting 2 x 12V batteries in series. My question is don’t UPS usually have batteries connected in parallel rather than series ?

Does connecting it in series or parallel affect the backup time ?

What are the advantages and disadvantaged of either setup (regarding UPS battery) ?

Thanks
If I do get it I’ll have to buy the batteries as a separate buy.
and connect them up myself. So how does connecting in series affect (if at all ) backup time compare to parallel and does connecting in series or parallel reveal the type or quality of the UPS ?

wheelchairgus asked:


I have one of those backups that look like a surgebar. It has 8 outlets. I was contemplating on taking it apart (after I turn it off and let it sit obviously) and looking at the battery inside and maybe getting a battery with matching voltage that has more capacity. Another idea was to hook up more then one together. Such as, #1 plugged into the wall, #2 plugged into #1, and so on. It would be excellent to have a much longer tim then 15 minutes. Obviously, if the computer is on standby and the monitor is off, I know the battery will have a charge a lot longer.

Reason why I want to know this? I have a computer hooked up in my car. Don’t ask, that is not what this post is about. Anyway, by having an extended backup system completely seperate from the battery, I could have my computer on in the touch of a button, by coming off standby, without having to wait for it to start up. It may actually be possible to extend this for several hours if I would guess using a seperate ca
(cont’d)… car battery. I am very technilogially inclined so I could do this. My only what-if questions are this.

1) If I use a larger capacity battery, is the charging circuit going to be able to charge it to capacity?

2) If I choose to leave the battery the way it is and hook up several UPS together back to back, wouldn’t one backup be unsing more power because it is drawing current to power and charge their own battery?

3) With the space provided in my trunk, I could do up to 6 UPS’s without sacrificing space. With adding more UPS and maybe a larger capacity battery or not, what are the realistic numbers of longevity till empty if when the computer is drawing from these UPS’s, its on standby?
IN REGARDS TO SIMON’S COMMENT:

It seems you don’t get it. Obviously, if I am hooking up UPS’s to my car, I ALREADY have a power inverter big enough for my computer. What i am using this for is to put my computer on standby for large lengths of time in my car with it being off. Therefore, after a few hours, I can return to my vehicle and take it off standby without having to reboot. Do you underdtand now? I hope it is clear. Sorry for the misunderstanding.

Good Morning asked:


PLEASE TELL ME

Ankuran S asked:


How can i find the 600VA ups battery backup time?

Ankuran S asked:


How can i find the 600VA ups battery backup time?