The series of storage-battery is applicable to electric forklift, electric handbarrow and other mobile electric equipment, having the characteristic of mini-volume, low weight, large capability and long longevity. Day to day maintenance affects greatly the performance and longevity. Read and understand carefully the Instruction Handbook before using. Operate strictly according to the instruction
I. Main specification (198 series, 158 series, other series) and technical parameter may refer to the product sample book
II. Electrolyte compounding
1. Compound with storage-battery vitriol meeting the requirement of HG/T2692-95 and ion-removed water or distilled water.
2. Use acid-proof or nonmetal chinaware jar as the container and stir with acid-proof bar.
3. Compounding order: pour certain amount of water, add certain acid slowly (order reversal strictly prohibited).
4. Stir equably, adjust to 1.25g/cm3 of visual density (30℃). The calculating formula is:
D30=D1+0.0007 (t-30)
In which: D30-- the electrolyte density at 30℃
D1-- the actually measured electrolyte density at t℃
t—the temperature of the electrolyte while measuring the density.
5. While the electrolyte reduces below 35℃ or near the room temperature, stir equably again. Fill into the battery while the visual density meets the standard.
III. Preparation before charge
1. Organize the battery group in series, ensuring the right polarity and reliable connection.
2. Fill the battery with the compounded electrolyte to the liquid level.
3. Place still 4-8 hours according to the temperature. Charge till the electrolyte temperature reduces below 35℃. (If possible, it is the best to charge in the flume with flowing water)
4. Connect the anode and cathode of the battery group with those of the charger, no reversal permitted.
IV. Battery charge and current selecting
1. First charge in two steps:
Step 1: Use 10% of the battery capacity as the charge current. (e.g. D-500 is 500X10%=50A ), and turn to Step 2 while the single voltage reaches 2.4 V.
Step 2: Continue to charge by using 1/2 current of Step 1 (that is 500X10%*2 =25A), until the charged electric capacity reaches 4.5-5 times of the rating capacity.
Judge whether the charge is full according to the following methods:
a. At the late phase of charge, under the condition of no current change, measure the voltage with no increase for continual 3 hours;
b. At the late phase of charge, measure the electrolyte density with no increase for continual 3 hours, and reaches 1.27±0.005g/cm3 (standard liquid level);
c. Exquisite and even bubbles on the liquid level of the electrolyte.
2. Ordinary charge, charge after use, in two steps:
Step 1: Use 14% of the battery capacity as the charge current. (e.g. D-500 is 500X14%=70A ), and turn to Step 2 while the single voltage reaches 2.4 V.
Step 2: Continue to charge by using 1/2 current of Step 1 (that is 500X14%*2 =35A), until the charged electric capacity reaches 1.4-1.5 times of the discharging capacity, meanwhile refer to the a, b, c clauses in 4.1.
Note:
l It is not adequate for the first charge to use isobaric charger;
l First charge must be made fully;
l During charge, the temperature must be below 55℃, otherwise the current must be lowered or the charger be stopped to reduce the temperature;
V. Use and maintenance
1. Over-charge is prohibited. The first charge must exceed 5 times of the capacity. Ordinary must exceed 1.5 times of the discharging capacity;
2. Insufficient charge is prohibited. Less than 4.5 times of the capacity for first charge or 1.4 times of the discharging capacity are deemed as insufficient charge.
3. Over-discharge is prohibited. Single voltage reaching 1.7V is the discharging limit. Lower than 1.7V is deemed as over-discharge;
4. Lower liquid level is prohibited. When the liquid level is lower than the standard, add ion-removed water or distilled water in time. The addition should be adequate and the added amount to each battery of the group should be as equal as possible;
5. After use, the battery should be charged as early as possible;
6. In the course of battery use, check the electrolyte density regularly (at least once a month). Check the density under the fully charged condition. If exceeding 1.27±0.005g/cm3 (at 30℃), draw out some electrolyte first, and then add ion-removed water or distilled water to the standard liquid level.
7. Keep clean of the battery surface. Keep away from fire. Mechanic damage is prohibited.
8. In the course of battery use, there will be unevenness of voltage, density or capacity. Even charge will avoid the occurrence of aforementioned phenomena as well as preventing the occurrence of laggard battery, to ensure each battery in use to reach even and accordant condition. In the course of battery use, it should be charged evenly at least once a month. In one of the following cases, even charge should be made:
a). Discharging voltage often reduces lower than the limitation;
b). Discharging current value is often larger;
c). No timely charge after discharge;
d). Unharmful substance is mixed in the electrolyte;
e). Insufficient charge for a long period or no use for a long time;
f). After taking out the polarity group or eliminating the sediment.
Method of even charge: ordinary charge first, after completion, place still for 1 hour, continue to charge with 50% current of the Step 2 of the initial charge, until exquisite bubble appear, stop charging for 1 hour. Herein repeat for several times, until the voltage and density keep invariable, after pause, charge until exquisite bubbles appear.
During even charge, put down the voltage, density and temperature of each battery. Before completion, adjust the density of electrolyte and liquid level to the standard.
VI. Safekeeping and storage term
1. From the date of leaving factory, under the environment of 5-40℃, less than 80% of the relative humidity, the storage term is 2 years. If exceeding 2 years, the capacity and longevity will reduce accordingly;
2. No direct sunshine, keep away from heat source at least 2 m;
Inversion is prohibited. Mechanic strike or stress is prohibite