Author ：Iflowpower – Portable Power Station Supplier
In October 2002, Jiangsu Huabang colloidal battery has been used for 2 and a half years, and it is only 4.7ah. Tested by the tester normal mode repair, the capacity increased slightly.
Disconnect the battery, observe from the exhaust hole, the colloid in the colloidal battery is very serious, the colloid is dry. The colloidal battery is very lost, and many manufacturers and related forums and experts say that colloidal batteries cannot be added. Colloidal battery is also a kind of lead-acid battery.
It is only the electrolyte of the sulfuric acid solution to the silica formation of silica gel. Store moisture and sulfuric acid in silica gel. When the reaction is, it is still a water and sulfuric acid.
Colloidal battery and ordinary lead-acid battery have the same failure mode. Suctioned, vulcanization and positive plate softening. Therefore, I decided to add water to make hydration charging.
After hydrating, not only the fever during the charging process is greatly reduced, but also rises to 9.7ah. During the hydrating, it is best not to increase the voltage to 16.
2V once, I am full of 13.8V, then raised to 14.8V, 15.
25V, 16.2V. When the charging current is observed, when the current falls to 300 mA, then increase the 16V.
2V file, and I fix the battery behind the tester, use the tester itself to heat the battery. After the hydrating charging, use the tester to run the repair mode, after three to four repair modes, capacity recovery to 5A discharge 124 minutes. During the reasons for the characteristics of the colloidal battery itself, the acceptable charging voltage is slightly lower than the lead-acid battery.
For example, when the normal charging voltage is 14.8V, the voltage of the colloidal battery is up to 14.62V14.
76V, which cannot reach 14.8V is normal. In addition, there are several fine-tuning potentiometers that adjust the voltage current, if the electronic enthusiasts with hands-on can be used instead of the original machine fine-tuning potentiometer, and try to install it to the casing.
Further expansion function is an adjustable function such as current voltages. I have added 13.8V, 14.
8V, 15.25V, 16.2V voltage selection mode, and current from 50 mA 3A continuous adjustable function.
Battery that is seriously easy to heat with vulcanization, start charging from small current, gradually improves the method of repairing the voltage current, and the repair failure caused by battery overheating is necessary. The life of the colloidal battery life has two measurement indicators. First, in the standard temperature and continuous floating state, the maximum capacity that the battery can be released is not less than 80% of the rated capacity; 80% depth cycle charges, that is, the full capacity German sunlight is removed by 80% of the rated capacity, and then fully charged, so that the number of times of recycling.
Usually, engineers and technicians only pay attention to the former, and ignore the latter. The 80% depth cycle charged charge represents the number of times the battery can actually use, in the case of frequent power failure or high quality, when the actual number of times the battery has exceeded the number of cyclic charges, although the actual use time is still Did not reach the calibrated floating life, but the battery is actually invalid. If you can't find a big accident, you will bring a big accident hidden danger.
Therefore, when choosing the battery, we should pay attention to the two life indicators. Under the conditions of the main interruption of the mains, the latter is especially important. When choosing the UPS supporting German sunlight, we should consider enough floating life margins.
According to relevant experience, the actual service life of the battery is often only 50% to 80% of the calibration of floating service life. This is because the actual floating life of the battery is related to the standard temperature, the actual ambient temperature, battery charging voltage, and use maintenance. When the actual ambient temperature is 10 ° C per liter than the meaning of the standard ambient temperature, the battery will be shortened by the internal chemical reaction rate, so that the UPS battery computer room should be equipped with air conditioning equipment.
In terms of meanling temperature values, the European standard is 20 ° C, my country, Japan, the United States and other standards are 25 ° C. 20 ° C 10 years of battery life-free battery is converted to 25 ° C standard, only the life of 7 ~ 8 years. The nominal floating life of the supporting battery should be the value obtained by using the actual service life of the battery we want.
This life factor is usually determined by relevant experience, and the battery reliability can be 0.8, and the reliability is low. How to repair the colloidal battery is a new generation of valve controlled battery, which is already sealed at the factory, it is not easy to add electrolyte! If it is added, it will not form a colloid so that the electrolyte will be leaked in use! Battery repair instrument should repair it.
The battery repair instrument should be a problem that the battery capacity caused by an negative electrode irreversible sulfate caused by overcharge or over-discharge during use. When fixing, the electrolyte concentration is lowered, and the smaller current charge and discharge is used. After repeating several times, then re-adjust the concentration and height of the electrolyte.
The colloidal battery electrolyte is in colloid, it is not easy to lower its concentration. The colloidal battery repair method is as follows 1, the charging method: generally vulcanized battery, can recover normal charging. Generally, the larger the discharge current, the shorter the battery life; the deeper the discharge depth, the shorter the life of the battery.
From the theory of battery use, try to prevent deep discharge, and should be shallow. 2, hydrotherapy: a battery with heavier vulcanization, hydraulic charge and discharge. (1) 0.
5 ml of the 500 ml of drip bottle capacity with the hospital with a 0.5 ml of 0.5 ml of the pure concentrated sulfate, which is a dilute sulfate electrolyte having a density of approximately 1.
050 as hydrating. (2) Open the battery on the cover (must be careful to avoid damage), rotate the single-handed control valve (or pick the rubber cover), add 5 ml of the electricity of 1.050 of 1.
050 -15 ml, injecting the electrolyte It is preferred to put the battery for more than 10 hours, so that the replenishing liquid is soaked into the separator to just see the flow electrolyte appear (more clearly, more clearly by flashlight) or the battery is flip 90 degrees, so that the small hole As side, excess electrolyte overflow, then fell back). (3) Connect the battery and tester, press the tester battery repair function button to repair. The tester automatically enters three six-hour debris repair.
After three hours of sulfur time, automatically transfer the working mode 3, both charge discharge charge, charging current is 3A, the discharge current is 5A, the tester automatically displays the discharge capacity and time, very intuitive. Each record, repeated three, four times until the capacity is no longer rising. 3.
Battery parallelism: If the battery temperature rise is rapid during repair, the charge current should be reduced. At this time, the two batteries can be connected in parallel to the first test, charge and discharge electric current is the original 1/2 (Ignore the internal resistance difference), the effect is also very good. 4.
Battery series repair method: This method is used when the single battery nominal voltage is below 12V. For example, on the market, charging emergency lights often use 6V4AH, as well as 6V7AH battery, and the tester single output is 12V. 5.
Output joint charge increase method: If the battery capacity is repaired, if some cars are 100AH batteries, sometimes new charge currents, at which time you can use the two or more outputs of the tester to be simultaneously connected in parallel Repaired battery to enhance charging current. .
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