UPS Charge Current. Uninterruptible power supply: operating rules. What is necessary for the correct charge of the UPS

The vast majority of us uses such extremely useful devicelike a source uninterrupted power. The quality of food is not perfect everywhere, and just the smallest power supply problems sometimes can cost an expensive. Data loss is always unpleasant, and sometimes just fatal. The device was bought, installed under the table, connected and the owner of it is in full confidence that in any case, in the interruption in the power supply, it will have time to complete the work, and it can be a backup on the USB flash drive. Time is going, the uninterrupted periodically makes it necessary to know about himself - as a charted guard dog, he gives a voice at the slightest deviations in the settings of the power grid. The owner is calm and everything is fine. But one of the days the interruption happens and this time the UPS does not just give a voice and immediately switches from the battery to the network, this time the light turned off for a long time. We calmly copy the files (after all, in stock, we have 15 minutes, no less) and then the uninterruptible starts to squeak completely often and everything turns off. How so? After all, the uninterruptible was to protect us from such situations, and he only instilled a false confidence in our security! Why did it happen?

It's all about the batteries, from which our uninterruptible and feeds all our iron when the external network is turned off. But these batteries, alas, are not eternal, they degraded, the container is reduced, and with it and time autonomous work. Up to zero. Unfortunately, this process, this often is not controlled by anyone, the owner is in confidence that it is protected, and at this time the battery is no longer quite a battery, and so - the uluage.

How to be what to do and where to run?

Why do accumulators degrade? There are a lot of reasons. Sulfate plates comes from intensive use, active substances are satisted from overloads and so on. The UPS has a non-listed battery, but it still has an electrolyte and electrolyte of water based on water. Being constantly in buffer mode, in slow recharging mode, water is gradually evaporated and the electrolyte does not fulfill its functions. The battery comes in disrepair. How can this be avoided? You can avoid this by correct battery charging mechanisms, control its characteristics, but all this is not subject to us - this is the IPS manufacturers.

It so happened that the Internet in my places is only wireless, for its work on the roof there is a frightening view of the antenna, and to reduce the loss of the signal in the cable of its length is minimized. The server that then distributes the Internet (another server and swish) - installed in the attic. For this small ligament you need uninterrupted food. Even without taking into account the losses of the data - to run a server at the slightest chica (and they often happen to us) - a little pleasure. Uninterrupted should be preferably more. I bought a boxer at 1100V, not new (the new one is more expensive than those servers) and of course I did not hoped for batteries - they are often worn. Well, bought and bought. Put, everything seems to be like Okay. In the control panel of the UPS, I was cheerful about almost an hour of battery life (the load of about 70 Wa was). I decided to check it out. Disconnected meals and two minutes, approximately, everything turned off everything. Batteries "Dead". Just the case with false protection. There is nothing to do, you need to buy new batteries. I put backup batteries (it happened that there are and they are inactive from the electric bike), on 12w. And the dead native natives lowered down.

I heard that the electrolyte in the UPS batteries often just dries. What is not sulfate, not choking the plates cause the death of UPS batteries, namely the drying of the electrolyte. Attempting, as they say, not torture. The batteries are still on the emission, and the thrust for picking did not give the chances. To carry out experiments, I needed:

Distilled water (in no case electrolyte!). Sale in a car shop.
- Syringe, better with a needle - it's easier to dispense with a needle. Sale in a pharmacy.
- Knife for picking, stronger.
- Scotch for assembly (for aesthetes, of course, only the blue tape should be!).
- Flashlight.

The battery is glued with a lid that closes banks. I was neatly fetped with a knife (for picking). I had to walk in a circle - she was glued in several places.

Under the lid - cans covered with rubber caps. These caps are probably needed for waters of water vapor, hydrogen and other things that can create redundant pressure in the bank during battery operation. Such a nipple, which releases the gas outward, but nothing passes inside.

The caps are not glued, just removed them, going with a knife.

Under the caps, if you look inside the banks - nothing interesting. Completely. For the lookout you need a flashlight.
He took the syringe, scored distilled water into it (most importantly without mud. So that everything is clean!) And flooded the water in the cube into each jar.

Water absorbed safely, almost instantly. Repeated it again. Then another 5 or 7, I do not remember. Water should not be poisoned in the bank, but also "take" the water of the bank either should also. It is better to hang a flashlight and look. The main thing is not to overflow.

After filling the water, I covered banks with rubber lids and put the battery charge. And he was charged separately, great charging, but I think it is not necessary - it is possible to charge just in uninterrupted. If the batteries are discharged below 10V, they will not be charged so that there are information that such batteries can also be "split", but for this it is necessary in the initial stages to supply high voltage on them (about 35V by 12V battery) with current control. I did not try, I can't say anything concrete. Recommend this method also can not.

First moment - if you blunted the water - it will return from under the cover. It must be collected by a syringe and pour into the sewer.

The second point - if you covered the cans with covers, then in the process of charging, the pressure in the bank rises slightly and the lids will be flying through the entire room with a characteristic chart. It's funny, but only once. I checked twice - the second time is no longer fun. I covered the covers with a native plastic cover, and the cargo put on it.

After charging, I slightly discharged the batteries by automotive "carrying", the order of half an hour, measured the residual voltage, estimated the container. Charged again and again discharged a little.

I also did the same with the second battery - in the uninterruptedness of their couple. After all, it cried with a scotch, the seeded covers, put the batteries in place.

The results are:

In 10 minutes, with a load in 110V, the batteries were discharged to 79 percent. The battery life has changed somewhat, at the end of the software spoke of almost 29 minutes + 10 people already passed almost 40 minutes. I am suitable for me. It is enough to go and run the generator. When I have it :). And along the way also to brew tea. And drink it.
If proceed from 79% is 21% in 10 minutes or 47 minutes of battery life. Somewhere in the area of \u200b\u200bwhat promises software.
Another calculation option is a complete capacity of 12V batteries * 7Ah * 2pcs \u003d 168 watts / hours. This is ideal. When loading at 110W, the charge should be enough for 1.5 hours. But in reality, even on new batteries of such a time, there will be no discharge current, the discharge current and the discharge capacity will be lower. It is difficult to unambiguously say how much capacity has been restored, but it looks very similar to 80 percent from the nominal. In my opinion, it's not bad for one syringe at all, distillate banks and an hour of time.

Moral Basni is:
- Check periodically hours of battery life. Pig, they may fall to you at the most unpleasant moment.
- At your own risk, even the types of batteries can be restored with low blood. But no, it will always have to buy new ones.

In each mechanism - one of the most expensive and important parts. From how correctly it is used, the operation time of the entire device depends, especially if this is a computer that needs continuous and good power supply. It is for this that the so-called uninterruptible power supply source () has been created (), which functions from its own batteries.

Below it is described in detail how to charge the UPS correctly and what devices can be recharged From him.

How to charge?

So how to charge the battery? There are a lot of rules, but it's not difficult to dive them and charge them.

• Important! You should remove traffic jams on the device.

• UPS should be attached to the previously charged battery. For this, two wires are used with the "crocodile" clamps. Be sure to connect, considering polarity. The most important thing is that the UPS batteries are well charged. Then turn on the UPS to the network and check - the voltage at the terminals of the rechargeable battery should be about 14 V. We carry out the charge until it is 13 V when the UPS is turned off.
• Indicators can be checked with a voltmeter or tester.
• Turn off the device periodically and check the above parameters - only this ensures that the process will pass correctly and fully.