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Thread: UPS hack

  1. #1
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    Default UPS hack

    what those ups battery costs??1000+ or something and what is their back up time ??20min or so for the 1st few times and then??they die.................what if u can get a hour long backup at the same cost??yeah you heard right...
    motorbike battery's cost about the same and they can provide hour long back up(depending on the load) for many times believe i have been using it for a year now and still no problems
    all u have to do is to go to Nababpur and find your self a motorbike battery (mine was branded as GREEN) and hook it up with your ups and you are ready to go
    For small ups consisting of 1 battery u can place the new battery inside ur ups but for bigger ones with 2 battery u have to put them outside for which u have to buy some wires to extend the cables of the ups

  2. #2

    Default Re: UPS hack

    থ্যাংকস!

    এবার বলেন - এই বাইক ব্যাটারি কত দাম?
    কি সাইজ?
    নাওয়াবপুর ঠিক কোন দোকান?

    ডিটেল বলেন ব্রো!

  3. #3
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    Default Re: UPS hack

    could post some pics of your physically hacked ups.......n what was the initial capacity of your ups? (i mean 800va/1000va, etc.)

  4. #4
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    Default Re: UPS hack

    ami ki hack korsi replay koyi sad amr account a bd room a dhok a na karon ki

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    Default Re: UPS hack

    Great post! Thanks for sharing it.

    Would you please tell us the price of your batteries(s). Will these batteries be safe?

    This technique can help us a lot. Lot of people like me are too much annoyed with the traditional batterie issues of ups. :s

  6. #6
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    Default Re: UPS hack

    The normal chinese UPs chargers often fail to actually charge up a car battery, the problem is there. They go for 5.5k+ (The large ones) and are generally good stuff.

  7. #7
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    Default Re: UPS hack

    @REVx
    ai battery dam ami jokhn kinsis around 1 year age tokhn chilo 950 BDT ..
    Size ups ar oi battery r guli thake akto boro but ami mod korar somoi dakhsi single battery wala ups e oi battery bhitore rakha jai but dui battery r guli te jaiga hoi na so baire rakhte hoi

    Nababpur thake bonshal er dike jaite saikel ar market guli jaikhane ..oikhane paben oderke bike er battery r kotha bollei hobe....

    ---------- Post added at 19:55 ---------- Previous post was at 19:46 ----------

    @neorage pics dibo akto wait koren ar amar ups ar capacity hoilo 1000 VA so duita battery lagse..brand hoilo micro

    @Dark_wave price akhn hoilo 1000 ar moto hobe each..........they ar safe to the point u don't short circuit them(true for any battery right??) I am using this technique for a yr or so and bro remember last summer and the load shedding ?? i used full 1 hour back up for many days and still the battery is good
    @Wintereise true....but they ar not car batterys so the require less charge and less time to get fully charged and for the fact i have a original micro ups

  8. #8
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    Default Re: UPS hack

    Quote Originally Posted by optimus prime View Post
    what those ups battery costs??1000+ or something and what is their back up time ??20min or so for the 1st few times and then??they die.................what if u can get a hour long backup at the same cost??yeah you heard right...
    motorbike battery's cost about the same and they can provide hour long back up(depending on the load) for many times believe i have been using it for a year now and still no problems
    all u have to do is to go to Nababpur and find your self a motorbike battery (mine was branded as GREEN) and hook it up with your ups and you are ready to go
    For small ups consisting of 1 battery u can place the new battery inside ur ups but for bigger ones with 2 battery u have to put them outside for which u have to buy some wires to extend the cables of the ups
    amar koekta que ase.

    1. Max continuous discharge current koto?
    2. Max charging Current koto?
    3. The AH rating?

    ar bike/car batteries are mainly manufactured for high ampere short burst outputs. as this is required for spark plugs. not for long use. as they have very thin plates over using them can destroy the batteries.

    Best option get IPS batteries. these are actually made for long term use.

    and one very big problem. the Chinese UPSs has very weak or low ampere chargers. so using a higher capacity battery will increase the backup time. but also it will increase the charging time. so your charger of the UPS is very important.

    let me give an example. Say your UPS battery is 7AH. means it can provide 1hr of juice if you discharge it at 7 Amps.

    so that gives you around 7*12= 84 Watts. if the battery is 12v.

    Now no PC can run on 84 W. Laptops may be. So say for 300w you will use around 25 Amps continuously. Granted its not over the max discharge current. if it is it will damage your battery.

    so pulling 25 Amps your 7AH battery will last around 2 minutes.

    Now say your Chinese UPS has discharge circuits which can pull 25 Amps. But in most cases they lower cost by using a cheaper lower spec charger.

    Most cases the charger will be around 1-5 Amps max. So even if your charger is 5 Amps at 12v it will take more than 1hr to charge it back up. 1hr 24 min to be exact.

    SO say you add a 25AH battery. for 300w it will require minimum this amount to backup for 1hr. It will take 1hr to discharge when its giving power to your PC but it will take around 5hrs to full charge backup.

    Which is impossible in BD because you will sure hit another load-shedding before that in summer.


    So you will continuously discharge your battery to its max. as you dont know the charge level. Which eventually will destroy the plates and kill your battery.

    and no Chinese UPS has battery meters.

    So only solution. Use a Chinese UPS but add another 25 Amp charger with it. Ahich may take 2.5k-5k if you only consider material cost. without the build cost.

    just my 2 Cents

    ---------- Post added at 21:53 ---------- Previous post was at 21:50 ----------

    And one more thing. Good quality brand new 25-30AH IPS batteries cost around 2.5-3K.

    And Gell batteris cost even higher. which are better in my opinion.
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  9. #9
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    Default Re: UPS hack

    Quote Originally Posted by avas911 View Post
    amar koekta que ase.

    1. Max continuous discharge current koto?
    2. Max charging Current koto?
    3. The AH rating?

    ar bike/car batteries are mainly manufactured for high ampere short burst outputs. as this is required for spark plugs. not for long use. as they have very thin plates over using them can destroy the batteries.

    Best option get IPS batteries. these are actually made for long term use.

    and one very big problem. the Chinese UPSs has very weak or low ampere chargers. so using a higher capacity battery will increase the backup time. but also it will increase the charging time. so your charger of the UPS is very important.

    let me give an example. Say your UPS battery is 7AH. means it can provide 1hr of juice if you discharge it at 7 Amps.

    so that gives you around 7*12= 84 Watts. if the battery is 12v.

    Now no PC can run on 84 W. Laptops may be. So say for 300w you will use around 25 Amps continuously. Granted its not over the max discharge current. if it is it will damage your battery.

    so pulling 25 Amps your 7AH battery will last around 2 minutes.

    Now say your Chinese UPS has discharge circuits which can pull 25 Amps. But in most cases they lower cost by using a cheaper lower spec charger.

    Most cases the charger will be around 1-5 Amps max. So even if your charger is 5 Amps at 12v it will take more than 1hr to charge it back up. 1hr 24 min to be exact.

    SO say you add a 25AH battery. for 300w it will require minimum this amount to backup for 1hr. It will take 1hr to discharge when its giving power to your PC but it will take around 5hrs to full charge backup.

    Which is impossible in BD because you will sure hit another load-shedding before that in summer.


    So you will continuously discharge your battery to its max. as you dont know the charge level. Which eventually will destroy the plates and kill your battery.

    and no Chinese UPS has battery meters.

    So only solution. Use a Chinese UPS but add another 25 Amp charger with it. Ahich may take 2.5k-5k if you only consider material cost. without the build cost.

    just my 2 Cents

    ---------- Post added at 21:53 ---------- Previous post was at 21:50 ----------

    And one more thing. Good quality brand new 25-30AH IPS batteries cost around 2.5-3K.

    And Gell batteris cost even higher. which are better in my opinion.
    I should come to your place someday and talk about getting something like this custom built

  10. #10
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    Default Re: UPS hack

    Quote Originally Posted by Wintereise View Post
    I should come to your place someday and talk about getting something like this custom built
    I know the underlying ideas and stuff. but havent built one yet. So i dont know how much help i will be.
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  11. #11
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    Default Re: UPS hack

    avas911 hmm I was trying not to go to this calculations but anyway .......

    These batteries ar pure chinese so all the ratings ar in the chinese language which sadly i can't read so i will take u through this with some bangla assumptions(don't mind) .....
    This battery has 8 holes to pour water so it should have 7 Plates and each plate should provide around 3.4 AH so which means each battery gives around 24 AH ...
    which means at 12V u have around 288W
    Now for a 1000VA UPS with two batteries in series u have 288x2=576W ... as they ar chinese batteries, say u get about 500W which is about sufficient unless u have something like ATI 6990 or some monster like that & if u have a single battery ups then i suppose u have normal power supply in that case your power drawn should be less than 300W and it should be sufficient for u too unless u use a high end graphics card with a normal power supply in that case definitely i can't help u


    Now about the charging bro u r right i takes around 4-5 hours(depending on ur ups) to get charged but hey come on it is a ups after-all and u r spending 2K(two batteries) and getting a 1 hour(around) backup for many times instead of spending the same amount to get avg 10 min backups for 10 to 12 times from a normal ups batteries

    And about the thing u said about high amp discharge for short time i thought about it too ....and that's why i am posting after a year of modding the ups ... as the batteries didn't die in 1 year and still running so i think its PAISA USSUL for me

    And if u wanna spend more than u can always get those gel batteries
    Attachment 0

  12. #12
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    Default Re: UPS hack

    Click image for larger version. 

Name:	02112011034.jpg 
Views:	64 
Size:	545.9 KB 
ID:	14596this is the pic of the unit running in my brother's PC modded with two batteries and the ups is Rahima Afroze 1000VA

  13. #13
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    Default Re: UPS hack

    Quote Originally Posted by avas911 View Post
    let me give an example. Say your UPS battery is 7AH. means it can provide 1hr of juice if you discharge it at 7 Amps.

    so that gives you around 7*12= 84 Watts. if the battery is 12v.

    Now no PC can run on 84 W. Laptops may be. So say for 300w you will use around 25 Amps continuously. Granted its not over the max discharge current. if it is it will damage your battery.

    so pulling 25 Amps your 7AH battery will last around 2 minutes.
    wrong calculation.
    when discharging @ 7AH, backup time = 60 mins
    when discharging @ 1AH, backup time = 60* 7 mins
    when discharging @ 25AH, backup time = 60*7/25 mins = 16.8 mins

    lets calculate it the other way,
    let x is the backup time when discharging @ 25AH (for 12v it is 300W)
    now total Watt hour is same
    so, x*300 = 60*84
    so x = 16.8 mins

  14. #14
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      • Philips 107S7 17" at [email protected]
      • Sound Card:
      • Built In Realtek ALC883
      • Speakers/HPs:
      • Creative SBS A200 / Cosonic Generic / Logitech Ultimate Ears 200vi/SoundMAGIC E10M IEM
      • Keyboard:
      • A4Tech
      • Mouse:
      • A4Tech X7 XL-747H 3600 DPI
      • Controller:
      • None
      • Power Supply:
      • Delta GPS-500AB A 500W
      • Optical Drive:
      • Asus 16x IDE DVD R
      • USB Devices:
      • Transcend 500 8GB & Corsair Survivor USB 3.0 16GB & Samsung Class 10 16GB mSDHC
      • UPS:
      • Rahimafrooz 600VA Premium
      • Operating System:
      • Win7 Ultimate 64Bit
      • Comment:
      • Slow in gaming
      • ISP:
      • Link3 512
      • Download Speed:
      • 70
      • Upload Speed:
      • 70
    avas911's Avatar
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    Default Re: UPS hack

    Quote Originally Posted by OoAIDoO View Post
    wrong calculation.
    when discharging @ 7AH, backup time = 60 mins
    when discharging @ 1AH, backup time = 60* 7 mins
    when discharging @ 25AH, backup time = 60*7/25 mins = 16.8 mins

    lets calculate it the other way,
    let x is the backup time when discharging @ 25AH (for 12v it is 300W)
    now total Watt hour is same
    so, x*300 = 60*84
    so x = 16.8 mins
    Bhalo ekta bhul korsi dekha jai....

    Thanks

    ---------- Post added at 08:33 ---------- Previous post was at 08:32 ----------

    Quote Originally Posted by optimus prime View Post
    avas911 hmm I was trying not to go to this calculations but anyway .......

    These batteries ar pure chinese so all the ratings ar in the chinese language which sadly i can't read so i will take u through this with some bangla assumptions(don't mind) .....
    This battery has 8 holes to pour water so it should have 7 Plates and each plate should provide around 3.4 AH so which means each battery gives around 24 AH ...
    which means at 12V u have around 288W
    Now for a 1000VA UPS with two batteries in series u have 288x2=576W ... as they ar chinese batteries, say u get about 500W which is about sufficient unless u have something like ATI 6990 or some monster like that & if u have a single battery ups then i suppose u have normal power supply in that case your power drawn should be less than 300W and it should be sufficient for u too unless u use a high end graphics card with a normal power supply in that case definitely i can't help u


    Now about the charging bro u r right i takes around 4-5 hours(depending on ur ups) to get charged but hey come on it is a ups after-all and u r spending 2K(two batteries) and getting a 1 hour(around) backup for many times instead of spending the same amount to get avg 10 min backups for 10 to 12 times from a normal ups batteries

    And about the thing u said about high amp discharge for short time i thought about it too ....and that's why i am posting after a year of modding the ups ... as the batteries didn't die in 1 year and still running so i think its PAISA USSUL for me

    And if u wanna spend more than u can always get those gel batteries
    Attachment 0
    Bro. Dont assume anything. make sure the ratings are correct.
    Once more into the fray
    Into the last good fight I’ll ever know

    Live and die on this day
    Live and Die on this day

  15. #15
    Member rummoi's Avatar
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    Default Re: UPS hack

    @optimus prime , can you write a step by step procedure(with pic) on how to do this?

  16. #16
    Member
    • optimus prime's Gadgets
      • Motherboard:
      • MSI K9A2C-ff v1
      • CPU:
      • AMD 64X2 5200+
      • RAM:
      • Transend 4GB DDR2 800MHz
      • Hard Drive:
      • 1T Hitachi+750GB Samsung+500GB Hitachi
      • Graphics Card:
      • Sapphire ATI 4850 512MB DDR3 & 4830 512MB DDR3 in Xfire
      • Display:
      • ASUS MS228
      • Sound Card:
      • Built-in Realtek
      • Speakers/HPs:
      • F&D F6000(5:1)
      • Keyboard:
      • A4TECH
      • Mouse:
      • A4TECH 747H
      • Controller:
      • Chinese
      • Power Supply:
      • Valuetop 500W
      • Optical Drive:
      • ASUS
      • UPS:
      • MICRO 1000VA(Customized)
      • ISP:
      • BTCL
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    Default Re: UPS hack

    avas911 bhai ami akjon engineer........ I get paid for assuming(akdom correct na but kasakase) ..........


    rummoi
    Step 1: buy the batteries from nababpur(description ager post e ase)
    Step 2: unscrew your ups
    Step 3: attach cables to the ones which goes to the batteries(identify positive and negative) ...applicable for the ones only for the ones with two batteries.........for 1 battery units skip this
    Step 4:give connections to the new batteries
    Step 5:make some arrangements to keep the batteries as they cant be accommodated inside the ups(for the ones with two batteries) and notice that this batteries come with a pipe and there is a hole in the batteries as acid water leaks for first few days so connect the pipes with the batteries and use a bottle to collect the leaking water.....be careful when pouring acid water into the batteries.
    Step 6: Your r good to go.

  17. #17
    Sola Boot Muri™
    • Deep -xCross-'s Gadgets
      • Motherboard:
      • ECS G41T-R3
      • CPU:
      • Intel Pentium D E5400 (@2.7Ghz)
      • RAM:
      • Transcend 2GB DDR3 (@1066MHz)
      • Hard Drive:
      • Western Digital Caviar BLACK 1TB & Seagate GoFlex Desk External 3TB
      • Graphics Card:
      • Sapphire ATi Radeon 5550
      • Display:
      • DELL P2211H 21.5" LED LCD (@1080p)
      • Sound Card:
      • Creative Audigy Value 7.1
      • Speakers/HPs:
      • Creative GIGAWORKS T3 / Bose IE2
      • Keyboard:
      • Razer BlackWidow Ultimate
      • Mouse:
      • Microsoft Comfort Mouse 6000
      • Power Supply:
      • Thermaltake Lightpower 430W
      • Optical Drive:
      • UPS:
      • GreenPower 600VA powered by a 85AH IPS Battery which gives me 3.5hours of backup
      • Operating System:
      • Windows 7 Ultimate 32bit (Pirated)
      • Comment:
      • Not so bad for normal usage. I don't have any time to play games right now.
      • ISP:
      • Link3 1532kbps Night Doubler
      • Download Speed:
      • 180-360
      • Upload Speed:
      • 180*360
      • Console:
      • 8
    Deep -xCross-'s Avatar
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    Default Re: UPS hack

    This is my setup:

    1. Battery (85AH).. just wire er matha soldier (battery er shathe na) kore shokto kore lagalm..



    2. Sine Wave UPS..



    3. Backside of my UPS. The white cable is ~60feet long and went to my room along with ethernet cable. Cable tar moddhe 2ta taar ase.. kono earthing nai.. 3ta taar wala cable er daam beshi ..



    4. Amar room ee ashar por earthing er line nilam..



    5. then amar desk er niche thik moto shobkisu wiring korlam.. done!

    seeing is believing..

  18. #18
    Member
    • OoAIDoO's Gadgets
      • Motherboard:
      • Gigabyte GA-Z68A-D3-B3
      • CPU:
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      • Graphics Card:
      • Gigabyte HD 5670 GDDR5
      • Display:
      • Fujitsu 24 inch TFT LCD
      • Sound Card:
      • Creative Sound Blaster X-Fi Titanium
      • Speakers/HPs:
      • Shure SRH440 Professional Studio Headphone
      • Keyboard:
      • Logitech G110
      • Mouse:
      • A4 Tech X7 XL-747H
      • Controller:
      • PS3 DS3 Controller :P
      • Power Supply:
      • XFX Core Edition PRO550W
      • Optical Drive:
      • ASUS DVD-ROM
      • USB Devices:
      • iPod Touch 4G + StoreJet 25D3 USB3 500GB
      • UPS:
      • Micro 1000VA
      • Operating System:
      • Windows 7 SP1 64-bit
      • ISP:
      • IS Pros
      • Download Speed:
      • 256 kbps or 32 KB
      • Upload Speed:
      • 256 kbps or 32 KB
      • Console:
      • 16
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    Default Re: UPS hack

    xCross
    UPS tar rating koto? and price koto?

  19. #19
    Sola Boot Muri™
    • Deep -xCross-'s Gadgets
      • Motherboard:
      • ECS G41T-R3
      • CPU:
      • Intel Pentium D E5400 (@2.7Ghz)
      • RAM:
      • Transcend 2GB DDR3 (@1066MHz)
      • Hard Drive:
      • Western Digital Caviar BLACK 1TB & Seagate GoFlex Desk External 3TB
      • Graphics Card:
      • Sapphire ATi Radeon 5550
      • Display:
      • DELL P2211H 21.5" LED LCD (@1080p)
      • Sound Card:
      • Creative Audigy Value 7.1
      • Speakers/HPs:
      • Creative GIGAWORKS T3 / Bose IE2
      • Keyboard:
      • Razer BlackWidow Ultimate
      • Mouse:
      • Microsoft Comfort Mouse 6000
      • Power Supply:
      • Thermaltake Lightpower 430W
      • Optical Drive:
      • UPS:
      • GreenPower 600VA powered by a 85AH IPS Battery which gives me 3.5hours of backup
      • Operating System:
      • Windows 7 Ultimate 32bit (Pirated)
      • Comment:
      • Not so bad for normal usage. I don't have any time to play games right now.
      • ISP:
      • Link3 1532kbps Night Doubler
      • Download Speed:
      • 180-360
      • Upload Speed:
      • 180*360
      • Console:
      • 8
    Deep -xCross-'s Avatar
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    Default Re: UPS hack

    Quote Originally Posted by OoAIDoO View Post
    xCross
    UPS tar rating koto? and price koto?
    600VA and price is 8,000tk (without battery) (discounted price)
    seeing is believing..

  20. #20
    Member
    • OoAIDoO's Gadgets
      • Motherboard:
      • Gigabyte GA-Z68A-D3-B3
      • CPU:
      • RAM:
      • Kingston HyperX 2 x 2 GB 1600 MHz
      • Hard Drive:
      • Corsair F60 + Samsung 1TB + 1.5TB
      • Graphics Card:
      • Gigabyte HD 5670 GDDR5
      • Display:
      • Fujitsu 24 inch TFT LCD
      • Sound Card:
      • Creative Sound Blaster X-Fi Titanium
      • Speakers/HPs:
      • Shure SRH440 Professional Studio Headphone
      • Keyboard:
      • Logitech G110
      • Mouse:
      • A4 Tech X7 XL-747H
      • Controller:
      • PS3 DS3 Controller :P
      • Power Supply:
      • XFX Core Edition PRO550W
      • Optical Drive:
      • ASUS DVD-ROM
      • USB Devices:
      • iPod Touch 4G + StoreJet 25D3 USB3 500GB
      • UPS:
      • Micro 1000VA
      • Operating System:
      • Windows 7 SP1 64-bit
      • ISP:
      • IS Pros
      • Download Speed:
      • 256 kbps or 32 KB
      • Upload Speed:
      • 256 kbps or 32 KB
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      • 16
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    Default Re: UPS hack

    jokhon battery mode a chole tokhon ki kono noise hoi UPS theke?

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