this will work but i just want to know,when the big battery is running the ups for a longer time,wont it overheat and get damaged? and also,when power is back on is it capable of charging the battery efficiently?
sweet explained it better then any other video ive seen since im a total noob with electricity. But i hear puting it in a battery box makes it safer also using a fuse how can i add a fuse to this. Also I hear you need to use same amp hours is this correct?
This is a very bad idea. One you void the UL on the product and if it catches fire - your're going to be at fault. The second reason you should not do this is the charger in the UPS is not large enough to charge the battery. The third reason is the OEM battery is a VLRA battery is considered a non gassing battery, whereas the car battery does exhaust fumes. Never modify a product with non standard products.
You should use thicker wire, such as 10ga for the 12v input. as the system kicks over to a battery it is going to heat that speaker wire up really fast... I have a similar setup for my computers internet and a radio linking system...
It's highly recommended that you wire it long enough (with heavier gauge wire) to place somewhere such as a garage or outdoors in a decent battery box with good ventilation.
All lead acid batteries should be replaced after it has been fully discharged just a few times. Its the nature of lead acid batteries. Deep cycle lead batteries are a little better but they also significantly degrade after being fully discharged.
A smart ups device would disconnect the battery before the battery fully discharges.
But not to worry, I forget his name, but a Chinese Professor at Stanford came up with a super lithium battery that is 10x the capacity of today's lithium battery.
from what i hear that's only been achieved in the lab on the nanoscale in small quantities, hardly practical to even mention.
my friend at the University of Texas in the ChE department has attempted to reproduce such results but getting nowhere near even with the original procedures. they believe it's fraud for grant money.
I believed it was never put into production because energy companies and chemical companies sabotaged the release of the battery because it would devastate both industries.
@dinnerandashow It's basic physics, not another conspiracy theory. Batteries have terrible energy density, and until you can radically change chemical interactions, it'll stay that way.
I am thinking about doing the same thing with my apc es350. I first thought about buying a nicer xantrex powersource 400, which is a 400 watt ups with a 40 ah agm battery (pretty darn good for under $200). But I figured that I might as well get a 180 ah marine battery for about the same price and have something I can run my computer and an external higher wattage power inverter for emergencies. I am wondering if I should buy a sealed optima deep cycle battery to avoid the gas and leak hazard.
Idiot... Never ever unplug a UPS from the wall while its running espically when it has a load on it. By doing that none of those devices have a earth anymore, if one of them had a fault the outside shell would become live and would give someone a nasty jolt. Other thing to remember is that UPS's are to smooth out fluctuations in power and to give enough time to safely shutdown connected devices (ie PC's, Servers etc) A cheap Off Line style UPS like yours would become VERY hot if run for hours
The guage of the wire is also very important,coz of 7501234 am thinking of looking for a wider gauge like 4 or some welding wire.And yes there is a circuit that checks the max current you can draw from your ups after which it will start warning you of an overload (you are drawing a higher current than your ups was designed for).Failure to take action will result in an instant shutdown
I had trouble the last few wks tryin to log in here,anyway just as 7501234 says clips are bad idea coz of arcing which limits your currents.Something interesting hapened awhile ago-I shortend my 12v cabling from 2m to ½m and my ups was able to start a cold 17" 130w CRT (it could never do this b4).Infact I realized my ups was detecting a premature low vcc hence cutting off b4 time,I guess what am tryin to say is I have increased my backup time dramaticaly
those alligator clips are bad idea, you need to have the best connection and tight as hell, so i recomened you to remove the clips and run the wire directly to battery, you can buy a circuit breaker from car audio designs and that would be a good disconnect, and adding a little thicker wire would be better, mayve 10-12 guage speaker wire, i use dual 8 guage wire on mine, but mine uses 3 12 volt batteries..
Can someone tell me what keeps all the ampage from running to the UPS? Is there like a circuit that only takes in the amps it needs or something? Thanks
I have tested my system and am getting exactly 1hr from a starting battery (which was dead for an year).
I also dropped the cutoff voltage to 10.89 to extend backup time. This batt only holds above this voltage for only 1hr so replacing it with a new deep cycle which can be rundown to 20% should give me roughly 3½ hrs as my system is 200w load power max. To cool my ups am using a psu cooler fan &will be replacing it with a mains fan with a higher CFM to optimize cooling as it is surely getin hot
This setup is highly likey to fail with "smart" Upses as the "dumb" ones wouldnt recognize what size of battery you have connected. I had to study the circuitry inside mine to be able to tell where the V cutoff rheostat was and adjusted it downwards to 11.77v then disabled the internal time limiter which was giving me 25min (a problem with smart upses). So now the 8 gauge wire allows me to run a current of about 75A so as to sustain my core2duo for prolonged periods of time playing Unreal tourna
By V transformation I mean transformation of 12v to mains electricity which develops a very large amount of heat which definately destroys your equipment. A ups that size is designed to be stressed during charging for about 8hrs half of which the charging circuit will experience max stress so imagine what happens if it prolongs. I had to get a special automatic charger that would charge the 75ah battery in the time the ups does its 5ah battery so as to virtually imitate the stess situation
From the looks,its quite credible that this setup will work.Well,its highly bound to fail for 2 reasons:
1.The ups internal circuitry was designed to run for abou 10min so its will definitely overheat and fail(by V transformation)
2.The 75ah battery cozez X30 more stress to the charging circuit of the ups than it was designed to take = fried charging circuit over time,unless it has a current limiter.
I have this setup and I was forced to use 8 gauge wire and a fan+disabled internal time limiter
Excellent !! I have a set up like this in use for over 2 years. I have tested it to one hour running two pc, a printer , cable box ,router ,and two lights. It had plenty more power to go ... The recharge produced no fumes ..the car battery never over charges . I store the whole set up in neat package near pc in a drawer. Once a year I check water levels in battery ,it is never down ,and never wet on top. The connections do not corode. Check my vids
those alligator clips ive hooked those to the wires professionally, yeah im that good basically tyou strip about 1/2 inch of insulation from the wires twist the strands and bend the wire so its beside the uncut insulation and you place the wire on the alligator clip so the twisted strandsare against the bottom (opposite the pinch ears) and then pinch one clip then the other and b4 you pinch these, add an insulator to the clip shrink tubing works good, thats it, do the same for the other wire
I can tell none of you guys have ever seen a car battery POP, CRACK, or yes even EXPLODE before. All I can say is your mom is gonna be PISSED "When" that $200 you saved turns into a $1000 acid splatter accross that hard wood floor.
GET A COOLER (with fan mod), TO STORE THAT THING IN BEFORE ITS TO LATE.
thats a very good idea is it possible to connect a few batteries and hotwire to power supply so that it will last 20 hours ect or use one battery and then another or use a heavy duty battery or would that harm the the power supply overload it or something.
and it works great but the jump box is a cheap one (about 20 dollars at christmas tree shops) and it has a sealed lead acid battery inside and i think its dying i cant keep it charged i dont want to leave it plugged in all the time as im not sure if the charging only charges and doesnt trickle charge
and catch10110 I rigged a car vac out of a dustbuster cordless vaccuum actually its a shark vac by euro pro and it had a 7.2 volt Ni-Cd battery with 2000Mah and that dies so i put a beefy 12 volt cord on it with a cig lighter plug that could handle the amps
catch10110 great hack, I have a plug in 12V cig lighter power inverter and it will handle 80 watts peak and i think 100 something max but how many watts is this APC UPS unit im thinking of getting one of these to hack and I have a jumpstart box i could rig it to that, BTW what song was that was playing on the stereo
@jeclone No, power and volume have a logarithmic relationship, so "half volume" is only using a few watts.
Every 3 dB gain takes double the power, so you aren't even at half power until 3 dB below max volume. 3 dB below that you're at 1/4 power, etc. All your casual, moderate-volume listening uses <10 watts; it's only when you crank it up to reference levels that you need real power, and once you get there you need tons.
@bobbytimberlake how he is referencing Half is not said, is it half the numerical number on the volume display or "Sounds" half as loud? for something to sound twice/half as loud it need 10dB more/less. while i agree that at normal volume and what is shown in this video is probably only a few watts to the speakers, he is using a "Home theater in a box" so DVD power really cheap inefficient amps powering 5.1 speakers i could see 150 watts being drawn from the UPS
@jeclone A 10 dB increase requires 10x the power, so if you're using "half loudness" instead of "half volume setting", you're still at 1/10th peak power.
Unless 140 of those watts are being used for the display, CD motor, etc, I don't see it using anywhere near 150 watts for casual listening. His demonstration isn't putting much load on the UPS at all.
@bobbytimberlake i agree the radio is only a small (and inconsistent) power draw on the UPS. A much better test would be a light bulb they draw pretty close to what there rated for and are nice and quiet.
i've always thought about doing this but maybe with a motor bike battery to see how long it'll run before trying a car or truck battery
sheek1982 1 week ago
this will work but i just want to know,when the big battery is running the ups for a longer time,wont it overheat and get damaged? and also,when power is back on is it capable of charging the battery efficiently?
MultiCool911 2 months ago
sweet explained it better then any other video ive seen since im a total noob with electricity. But i hear puting it in a battery box makes it safer also using a fuse how can i add a fuse to this. Also I hear you need to use same amp hours is this correct?
Security98 4 months ago
This is a very bad idea. One you void the UL on the product and if it catches fire - your're going to be at fault. The second reason you should not do this is the charger in the UPS is not large enough to charge the battery. The third reason is the OEM battery is a VLRA battery is considered a non gassing battery, whereas the car battery does exhaust fumes. Never modify a product with non standard products.
CSNWOR 5 months ago
You should use thicker wire, such as 10ga for the 12v input. as the system kicks over to a battery it is going to heat that speaker wire up really fast... I have a similar setup for my computers internet and a radio linking system...
kendrickmeadows 1 year ago
It's highly recommended that you wire it long enough (with heavier gauge wire) to place somewhere such as a garage or outdoors in a decent battery box with good ventilation.
GarrettBMXes 1 year ago
Hi I have about 650Va ups for my computer can i use car battery for my ups it will be burnt i think so......?
KaleemNiz 1 year ago
All lead acid batteries should be replaced after it has been fully discharged just a few times. Its the nature of lead acid batteries. Deep cycle lead batteries are a little better but they also significantly degrade after being fully discharged.
A smart ups device would disconnect the battery before the battery fully discharges.
But not to worry, I forget his name, but a Chinese Professor at Stanford came up with a super lithium battery that is 10x the capacity of today's lithium battery.
dinnerandashow 2 years ago
from what i hear that's only been achieved in the lab on the nanoscale in small quantities, hardly practical to even mention.
my friend at the University of Texas in the ChE department has attempted to reproduce such results but getting nowhere near even with the original procedures. they believe it's fraud for grant money.
catch10110 2 years ago 2
I believed it was never put into production because energy companies and chemical companies sabotaged the release of the battery because it would devastate both industries.
dinnerandashow 2 years ago
@dinnerandashow It's basic physics, not another conspiracy theory. Batteries have terrible energy density, and until you can radically change chemical interactions, it'll stay that way.
bobbytimberlake 1 year ago
I am thinking about doing the same thing with my apc es350. I first thought about buying a nicer xantrex powersource 400, which is a 400 watt ups with a 40 ah agm battery (pretty darn good for under $200). But I figured that I might as well get a 180 ah marine battery for about the same price and have something I can run my computer and an external higher wattage power inverter for emergencies. I am wondering if I should buy a sealed optima deep cycle battery to avoid the gas and leak hazard.
sirmasterpimp 2 years ago
So basically its a 12v inverter? Can you run it off your car?
stopglobalswarming 2 years ago
you probably could and your car's alternator will charge and power it you can just run the wires to the battery and have the UPS inverter in the car.
coondogtheman1234 2 years ago
Comment removed
stopglobalswarming 2 years ago
You can remove buzzer.
nic165 3 years ago
Idiot... Never ever unplug a UPS from the wall while its running espically when it has a load on it. By doing that none of those devices have a earth anymore, if one of them had a fault the outside shell would become live and would give someone a nasty jolt. Other thing to remember is that UPS's are to smooth out fluctuations in power and to give enough time to safely shutdown connected devices (ie PC's, Servers etc) A cheap Off Line style UPS like yours would become VERY hot if run for hours
LANkillaNZ 3 years ago
possibly catch fire. As suggested below, get a breaker betweem the battery and UPS. Good idea, but poorly implemented and tested
LANkillaNZ 3 years ago 8
Will it not have problem charging the car battery since the UPS was designed to charge a small battery?
lambition 3 years ago
Well I have answered that question in my previous replies, I also wouldnt mind someone with deeper insight than me... am still learning
Xyotron 3 years ago
re: charge small battery vs big battery
12v is 12v
stopglobalswarming 2 years ago
When I say start a cold 17" 130w CRT,I actually mean the ups is sourcing its power from the battery and is completely disconnected from the mains
Xyotron 3 years ago
The guage of the wire is also very important,coz of 7501234 am thinking of looking for a wider gauge like 4 or some welding wire.And yes there is a circuit that checks the max current you can draw from your ups after which it will start warning you of an overload (you are drawing a higher current than your ups was designed for).Failure to take action will result in an instant shutdown
Xyotron 3 years ago
I had trouble the last few wks tryin to log in here,anyway just as 7501234 says clips are bad idea coz of arcing which limits your currents.Something interesting hapened awhile ago-I shortend my 12v cabling from 2m to ½m and my ups was able to start a cold 17" 130w CRT (it could never do this b4).Infact I realized my ups was detecting a premature low vcc hence cutting off b4 time,I guess what am tryin to say is I have increased my backup time dramaticaly
Xyotron 3 years ago
those alligator clips are bad idea, you need to have the best connection and tight as hell, so i recomened you to remove the clips and run the wire directly to battery, you can buy a circuit breaker from car audio designs and that would be a good disconnect, and adding a little thicker wire would be better, mayve 10-12 guage speaker wire, i use dual 8 guage wire on mine, but mine uses 3 12 volt batteries..
just trying to help you out
7501234 3 years ago
Can someone tell me what keeps all the ampage from running to the UPS? Is there like a circuit that only takes in the amps it needs or something? Thanks
dannyywd1982I 3 years ago
Batteries don't 'push' amps, loads pull the amount of current they require.
wegfam 3 years ago
I have tested my system and am getting exactly 1hr from a starting battery (which was dead for an year).
I also dropped the cutoff voltage to 10.89 to extend backup time. This batt only holds above this voltage for only 1hr so replacing it with a new deep cycle which can be rundown to 20% should give me roughly 3½ hrs as my system is 200w load power max. To cool my ups am using a psu cooler fan &will be replacing it with a mains fan with a higher CFM to optimize cooling as it is surely getin hot
Xyotron 3 years ago
This setup is highly likey to fail with "smart" Upses as the "dumb" ones wouldnt recognize what size of battery you have connected. I had to study the circuitry inside mine to be able to tell where the V cutoff rheostat was and adjusted it downwards to 11.77v then disabled the internal time limiter which was giving me 25min (a problem with smart upses). So now the 8 gauge wire allows me to run a current of about 75A so as to sustain my core2duo for prolonged periods of time playing Unreal tourna
Xyotron 3 years ago
By V transformation I mean transformation of 12v to mains electricity which develops a very large amount of heat which definately destroys your equipment. A ups that size is designed to be stressed during charging for about 8hrs half of which the charging circuit will experience max stress so imagine what happens if it prolongs. I had to get a special automatic charger that would charge the 75ah battery in the time the ups does its 5ah battery so as to virtually imitate the stess situation
Xyotron 3 years ago
From the looks,its quite credible that this setup will work.Well,its highly bound to fail for 2 reasons:
1.The ups internal circuitry was designed to run for abou 10min so its will definitely overheat and fail(by V transformation)
2.The 75ah battery cozez X30 more stress to the charging circuit of the ups than it was designed to take = fried charging circuit over time,unless it has a current limiter.
I have this setup and I was forced to use 8 gauge wire and a fan+disabled internal time limiter
Xyotron 3 years ago
Excellent !! I have a set up like this in use for over 2 years. I have tested it to one hour running two pc, a printer , cable box ,router ,and two lights. It had plenty more power to go ... The recharge produced no fumes ..the car battery never over charges . I store the whole set up in neat package near pc in a drawer. Once a year I check water levels in battery ,it is never down ,and never wet on top. The connections do not corode. Check my vids
Mackiebrat 3 years ago
those alligator clips ive hooked those to the wires professionally, yeah im that good basically tyou strip about 1/2 inch of insulation from the wires twist the strands and bend the wire so its beside the uncut insulation and you place the wire on the alligator clip so the twisted strandsare against the bottom (opposite the pinch ears) and then pinch one clip then the other and b4 you pinch these, add an insulator to the clip shrink tubing works good, thats it, do the same for the other wire
coondogtheman1234 3 years ago
I can tell none of you guys have ever seen a car battery POP, CRACK, or yes even EXPLODE before. All I can say is your mom is gonna be PISSED "When" that $200 you saved turns into a $1000 acid splatter accross that hard wood floor.
GET A COOLER (with fan mod), TO STORE THAT THING IN BEFORE ITS TO LATE.
JoeVSvolcano 3 years ago
was that little battery inside of the backup
minicoppergpiscool 3 years ago
thats a very good idea is it possible to connect a few batteries and hotwire to power supply so that it will last 20 hours ect or use one battery and then another or use a heavy duty battery or would that harm the the power supply overload it or something.
zeesham1 4 years ago
Umm sure is nice but the funny thing is......When and if you forget that since its a MUCH bigger battery it will take a lot longer to charge back up.
Look at that small wire and clips. Come on spring for some 12 gague cable and some good clamps. PLus some terminal covers Opps droped a wrench BOOM
dontreallycare1236 4 years ago
and it works great but the jump box is a cheap one (about 20 dollars at christmas tree shops) and it has a sealed lead acid battery inside and i think its dying i cant keep it charged i dont want to leave it plugged in all the time as im not sure if the charging only charges and doesnt trickle charge
coondogtheman1234 4 years ago
and catch10110 I rigged a car vac out of a dustbuster cordless vaccuum actually its a shark vac by euro pro and it had a 7.2 volt Ni-Cd battery with 2000Mah and that dies so i put a beefy 12 volt cord on it with a cig lighter plug that could handle the amps
coondogtheman1234 4 years ago
catch10110 great hack, I have a plug in 12V cig lighter power inverter and it will handle 80 watts peak and i think 100 something max but how many watts is this APC UPS unit im thinking of getting one of these to hack and I have a jumpstart box i could rig it to that, BTW what song was that was playing on the stereo
coondogtheman1234 4 years ago
You say the 3 amp hour battery can't handle 30 amps but then you use alligator clips and wire that can't handle that much.
also you use a marine battery you should use a full fledge Deep cycle battery.
Your "600 watt" stereo is nowhere near that powerful really, even so at half volume it would also be 1/4 power not 1/2.
something else to keep track of is that a small ups might not be able to run its rated power for longer then the original battery is capable of.
other then that, good Hack
jeclone 4 years ago 3
@jeclone No, power and volume have a logarithmic relationship, so "half volume" is only using a few watts.
Every 3 dB gain takes double the power, so you aren't even at half power until 3 dB below max volume. 3 dB below that you're at 1/4 power, etc. All your casual, moderate-volume listening uses <10 watts; it's only when you crank it up to reference levels that you need real power, and once you get there you need tons.
bobbytimberlake 1 year ago
@bobbytimberlake how he is referencing Half is not said, is it half the numerical number on the volume display or "Sounds" half as loud? for something to sound twice/half as loud it need 10dB more/less. while i agree that at normal volume and what is shown in this video is probably only a few watts to the speakers, he is using a "Home theater in a box" so DVD power really cheap inefficient amps powering 5.1 speakers i could see 150 watts being drawn from the UPS
jeclone 1 year ago
@jeclone A 10 dB increase requires 10x the power, so if you're using "half loudness" instead of "half volume setting", you're still at 1/10th peak power.
Unless 140 of those watts are being used for the display, CD motor, etc, I don't see it using anywhere near 150 watts for casual listening. His demonstration isn't putting much load on the UPS at all.
bobbytimberlake 1 year ago
@bobbytimberlake i agree the radio is only a small (and inconsistent) power draw on the UPS. A much better test would be a light bulb they draw pretty close to what there rated for and are nice and quiet.
jeclone 1 year ago
20 OF THOSE IN A SERIES CIRCUIT!!!!!!!
WDX7770243546 4 years ago
thats a lot of volts
Braveenth 3 years ago
makes a BIG BaTtErY? lol!
WDX7770243546 3 years ago
You are the Chinese-American MacGuyver, but with access to Wal*Mart and aspartame.
ljonesvc 4 years ago
lawl @ the song
"save me from myself" is right!, gonna blow up your apartment fool.
jonZ1985 4 years ago
Haha, I have to agree with you!
Get the right lightning bolt and that thing will blow!
GreenFlameZ 4 years ago