12V battery charging method

To the accumulator, it should be in accordance with the battery manufacturer recommended that charge battery by charging current. The battery charging current charge for battery with over one ten of the battery capacity (both called recharge battery quick charging), and it can also choose to charge for over one twenty of the battery capacity (both called recharge battery slowly).

If the battery charging current is too large, easy to cause the battery fluid boiling, the battery is bad, will affect the battery life.It is best to small current, long time to be good for the battery to charge (both slow filling).Conventional one over twenty the capacity of the battery charging should be adopted as well, charging time for fitness in 24 hours.

Look at you the battery many small Ah, if you have 50 Ah Ah ~ 45 suggested to 5 a current charge of 8 ~ 10 hours, the accumulator is often I help others

100% out of electric power, the general in 8 ~ 10 hours of charging time would look like, not more than 12 hours (have an impact on battery life will), do not recommend using the electricity used up every time, general recommendation power consumption at about 70%, the charging time is generally in 6 ~ 8 hours.

If every day power consumption at 10%, which can be charged once a week.Every day power consumption at 20%, can charge the battery for three days at a time.Every day power consumption at 30%, can charge two days at a time.Every day power consumption in more than 40%, can charge once a day, under the control of charging time, generally at about 6 hours.

Lead-acid battery no memory effect, the general recommendations of the residual capacity of electricity to 30% ~ 40% to the battery to charge as the best time.

The 12 v battery should be a lead-acid battery

Charging time and your charger is directly related to the current, general/charger output current * 1.3 = capacity

If it is a lead-acid battery, is less resistant to overcharge, so don't be too long, time is too long, you can hear the air bubbles electrolyte consumes faster.

The battery of 12 v100ah recharged with 10 a current, about 10 hours to fill.

Battery capacity on behalf of the battery to save electricity, use a product of discharge current and discharge time, discharge time refers to the battery charge to discharge to 10.50 V.Battery charging, the charging current normally set to one over ten of the battery capacity is more appropriate.

1/10-1/5 - c c which is 10-20 a a.10 to 5 hours, it is best to 10 a charge, charge should be pay attention to the observation of charging current, charging voltage, the power supply should be L, N, PE, leakage protector, ventilation, battery not fever, away from flammable, the charger to specification.

Such as 12 v60ah charging ways: to adopt constant voltage current-limiting charging in the form of constant voltage 14.8 V, 15 a charging current limiting 16 hours to 4 hours 3 a constant current charge, a total of 20 hours.

Battery fully charged can judge according to the following phenomena:

1) battery produced a large number of air bubbles, both "boiling" phenomenon;

2) voltage of up to a maximum and no longer rise in two hours;

3) electrolyte rose to the highest level, and no longer rise in two hours.

Or watch magic eye, full charge state determined from magic eye is green.

The first to see how much you are Ann..This you have to let me know.Must be tuned on the 12 v batteries oh...0-12 refers to the charging speed and strength...This according to the size of your battery to determine oh...Is normal in 7-8 block...And your charger is 30 or 50 a, a

Battery charging time is determined by capacity, not voltage.

Charging current generally choose 10% of the capacity of the 10 hours rate, the maximum current is not more than 30% of the rated capacity value, if the charging current is too large, the battery is easy fever, plate bending, fall off, rupture, short circuit that caused the explosion, burning and other accidents.

Charging time (hours) = rechargeable battery capacity (Ah)/charging current (A) * 1.5 coefficient.

For example: suppose that the battery is 30 ah, is: 30/3 * 1.5 = 15 (h)

Generally has the following six kinds of methods to prevent the battery overcharge: 1. The peak voltage control: by the end of the test judging the peak voltage of charging battery;2. DT/dT control: by detecting battery charge peak temperature gradient to determine the end point;A full battery 3. T control: when the difference between the temperature and environmental temperature will reach maximum;4. - V control: when the battery charge after reaching a peak voltage, the value of the voltage drop must be 5. Timing control: by setting a certain charge time to control the charging end point, generally set at least into the time needed for 130% of nominal capacity to control;6. TCO control: considering safety and characteristics of the battery should avoid high temperature (high temperature battery charge except), therefore should stop charging when the battery temperature 60.As our common user, don't have such trouble, tell you a method, you first look at their own rechargeable battery capacity (for example 1800 mAh), look at their own charger charging current (such as 180 ma, can also be their measurement, note must measure the charging current, rather than the short circuit current) so (1800/180) * 130% = 13 hours., of course, this is the least amount of charging time, generally we charge efficiency into consideration (charging efficiency is affected by the charging rate and ambient temperature, charging current when charging must be within a certain range, the charging current is too small or too large efficiency is very low, because the battery self-discharge still exist, the battery can't charge.)So often * 140% to 150%, namely, 14 to 15 hours.So, if my battery capacity is 2100 mah and charger charging current is 150 ma, so how many hours to charge?Figure out by yourself?(2100/150) * 140% = 19.6 hours, so, about 19 to 20 hours.10% of the battery capacity is commonly used in current charging the battery is best.But, due to the charging time is too long, the general is also commonly used a method of quick charge, in which 30% of the battery, battery capacity calculation formula: (1800/540) * 130% = 4.3 hours, it is important to note that in this case, general need not 140% or 150%, because this case more than an hour, the three hours means more than usual.Moreover, the charging method can shorten the life of rechargeable battery nearly 50%.Exception in the case of a, such as a brand of quick charge, generally are sold together with the battery, because the chemical composition of the battery inside and are different from ordinary rechargeable batteries, is specially designed, so allow large current, short time of charging, charging time is generally within 4 hours.But, it doesn't mean all the rechargeable battery in the charger can fast charge, even if the same brand of different types of also can not!!!!!!Otherwise shorten battery life light is serious, or caused an explosion of the battery, you can think about it, if it is four times as large as 180 ma quick charge to 800 mAh old nickel cadmium battery, that is to say, with a current of 720 ma 800 mAh battery charge, what are the consequences?!So, you must pay attention to their own charger charging current.

The 12 v battery charging operation procedures

1. The preparing work before charging:

1.1 starting battery sometimes due to a large number of battery discharge, or stored for a long time lead to loss of battery, so should from set on a regular basis

Remove the battery, in charging of battery charged to supplement.Supplementary charge generally to once a month, to improve its serviceability, prolong service life.A supplementary charge into the winter best.

1.2. Should be taken before charging the battery voltage is measured with a multi-meter and record, so that the loss of battery according to each situation

Charging scheme.

1.3. Check the ac power is in line with the use requirement, the power supply should be 220 v, 50 hz alternating current.

1.4. After the accumulator, the charger "+" extremely connected to battery "+", "-" very connected to battery charging machine "-"

On a terminal, pay attention to prevent load short circuit.1.5. Select the charging voltage.If the rechargeable battery is 12 v, the voltage profile should be rotating to the 12 v, if the rechargeable battery is 24 v,

Turn to the 24 v voltage select file should be, can not choose the wrong, otherwise will damage the charger or battery.2. The charging operation:

2.1. At the beginning of charging, supplementary charge often adopt constant current charging (constant current charging is in a certain period of time to do not

For battery charging current, its advantage is charging is complete, but almost all late current consumed on the decomposition of water and heat).Supplement the charging current of 0.1 C20A (e.g., 60 ah battery with 6 a), the charging time is 3 ~ 5 h, or deposit according to the length of time to determine the charging time.2.2 maintenance charge often adopt constant voltage charging (constant voltage charging is always at a constant voltage to charge batteries,

Its advantage is very little gases, water consumption is small, charging is not completely flawed.Monomer voltage is usually set in 2.3 ~ 2.4 V (The 12 v battery13.8 ~ 14.4 V, 6 V battery is 6.9 ~ 7.2 V), until sufficient electricity).2.3. Will choose gear charging mechanical and electrical current to the lowest gear.

2.4. Make sure that the red, black clip did not touch can only live, otherwise it will cause a short circuit and damage to the machine;2.5. The charging charging method using two steps:

2.5.1. The first step in using 0.1 C20A charging battery is 13.8 ~ 14.4 V to 12 V, 6 V battery is 6.9 ~ 7.2 V

At the right time.Charging charging into the second step, the second step USES 0.05 C20A until the end of charging.

2.5.2. On 220 v power supply, by adjusting the charging current, to maximum charging current C20A 0.1, the first step to recharge.

Namely: for 12 v, 54 ah battery, the charging current of 0.1 x54 = 5.4 A,

For 12 v, 150 ah battery charging current of 0.1 x150 = 15 a

2.5.3. When the battery voltage is 13.8 ~ 13.8 V, charging into the second step, the second step maximum current charging 0.05 C20A.

Namely for 12 v, 54 ah battery, the charging current of 0.0511 x54 = 2.7 A, for 12 v, 150 ah battery charging current 0.05 x150 = 7.5 A

2.5.4. After sufficient electricity, finally to an equalizing charge batteries, to ensure that the single equilibrium.The method is: will be enough electricity

Charging, the battery is 0.035 C20A current (i.e., 12 v, 54 ah battery charging current of 0.035 x54 = 1.89 A;12 v, 150 ah battery charging current of 0.035 x150 = 5.25 A);When the battery out uniform bubbles, temperature rise, stop charging 1 hour;Repeat 3 ~ 4 times, single cell battery can be emitted uniform bubbles, and the battery at constant voltage \ electro-hydraulic density tends to end.

2.6. Determination of charging time:

Supplementary electricity time (reference), the corresponding relationship between battery voltage battery voltage added electric time 12.55 hours 12.45-12.35-12.45 V2 V3 hours 12.35-12.05-12.35-12.20 V4 hour V5 hours 12.05-11.95 V6

11.95 to 11.80 for V7 V8 11.80 11.65 hours 11.65 11.50 11.50 11.30 V10 V9 hours hours 11.30-11.00 V12 under 11.00 V 14 hours

2.7. After charging, check the battery electric eye color (and maintenance-free battery, the same below).Magic eye display for the green, instructions

The battery has enough electricity. If the electricity eye is black, check whether charging attachment is well prepared and clean, whether the charging voltage is about 16 v, and continue to supply electricity.

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