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 2in1 RC LIPO Battery 1-8S Cell Low Voltage Meter Buzzer Alarm Checker Indicator US $4.99 
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Battery Voltage
Testing Battery Voltage using a digital multi meter (DMM, DVOM)
Rechargeable battery using and maintenance Tips
1) How to enable a new battery
Before the opening of the new battery, the plate surface will has a certain extent of oxidation. the longer the storage time, the more severe oxidation. Added electrolyte, the rapid warming occurs, the charge will have a greater resistance, so that charging difficulties. Therefore, the opening of the new battery should be done: After filling the electrolyte, static discharge around 6h, to be completely saturated with the electrolyte plate, the temperature dropped to below 35 ℃, and then connect the power to charge; Strictly control the charge current within the specified scope, if the temperature is too high during charging , more than 45 ℃, should reduce charge current or stop charging; for 1 to 2 times charge and discharge cycle in order to achieve the rated capacity.
2) How to charge a new rechargeable battery
The battery positive and negative were connected positive and negative of power supply, First charge with the initial charging current to the electrolyte release air bubbles, single-cell voltage to rise to 2.3 ~ 2.4V. Then the current drops to 1 / 2 initial charging current, to charge to the electrolyte release violent bubble, electro-hydraulic stability of gravity and constant voltage until the row 3h. Full charging time is about 45 ~ 65h. Charging process should always measure the universal laptop adapter electrolyte temperature, if temperature is too high, can use the half current, stop the charging or cooling method, temperature control in the 35 ~ 40 ℃. Initial charging is completed, if the proportion of electrolyte irregularities, application of distilled water or electrolyte specific gravity of 1.4 after adjustment charge 2h, until the proportion of the required date. After charging the new battery for the first time often have reduced capacity, should be charge and discharge cycle. With a rated capacity of 1 / 20 of the current discharge to a single cell voltage down to 1.75V, and then add sufficient charge current. After the first charge and discharge cycle, if the capacity is still below 90% of rated capacity, should be a further charge and discharge cycles.
3) How to maintain the battery
a. batteries during use, evaporation and electrolysis of water are charging will reduce the surface, so every 5 to 6 days in summer and winter every 10 to 15 days should be checked fluid levels, as required, plus distilled water. In addition to reducing surface caused by leakage, the electrolyte does not allow to add, or electrolyte specific gravity will be higher than 1.300, thus shortening battery life. Battery electrode surface should be higher than 15mm, too easy to spill surface, corrosion around the parts, there is likely to positive and negative pile turn, lead to self-discharge; liquid level is too low, easy to expose the upper surface plate, not only battery capacity will decrease, and the exposed plate will soon be curing.
b. in the use of batteries due to different working conditions, often charging less than the phenomenon (especially short-haul vehicles). One of the following conditions should be added charge:
① the proportion fell to 1.200 the following electrolyte;
② winter discharge over 25%;
③ summer discharge over 50%;
④ lights dim;
⑤ weak start. Additional charge in two phases. The first stage of the rated capacity of 1 / 10 of the current charge, to the single cell voltage of 2.4V, the electrolyte bubble began to let up, which normally takes 10 ~ 11h. The second phase will be sufficient up until the current half, it generally takes 3 ~ 5h. If the proportion of electrolyte irregularities, should be adjusted, its methods and the same initial charge.
c. Winter battery should be noted:
① piling and wire electrical connector to ensure a solid connection, good contact;
② to install insulation installed in the hp pavilion dv6000 battery so that the temperature is too low, the resistance increases;
③ the proportion of the required adjustment of the electrolyte;
④ in the engine running the engine to the battery charging plus distilled water to avoid uneven mixture of water and electrolytes caused by ice;
⑤ cold start when the engine preheating, each starting time of not more than 5s, start to be repeated intervals 15s, if the three starting unsuccessful, should be checked, do not blindly re-start;
⑥ often to keep the fully charged state of charge storage in case the electrolyte reduced the proportion of the ice, and even damage the battery.
4) How safe operation when the battery maintenance battery in warranty?
They should observe the following safety requirements:
① moving gently when the battery can not be skewed in order to avoid electrolyte splashed on clothing or skin, causing corrosion or burns. If they are spilled onto, immediately rinse with water.
② Check the electrolyte specific gravity and surface height, so leave a little straw electrolyte injection port can not be raised too high, so as not to spill electrolyte.
③ prohibit oil containers and a variety of metal on the battery housing.
④ In the preparation of electrolyte should be used ceramic containers, and sulfuric acid slowly into the water, the absolute prohibition of water into sulfuric acid, so as not to splash sulfuric acid burns the skin and clothing, and even burst the container caused the accident.
5) how to make the battery discharge
The new battery to charge and discharge cycles and test the work capacity battery normally come to discharge a certain standard to test whether the rated battery capacity. Battery rated capacity of 1 / 20 of the current discharge to every single cell battery voltage 1.75V, and 2h at the beginning of each measurement time after the discharge voltage, the voltage down to 1.8V voltage decreases rapidly after the result should be 15 ~ 20mim measuring a voltage voltage down to 1.75V, it should immediately stop discharging, or voltage drop dramatically to the "0" so burn plate, and cause difficulties in the next charge. Discharge many ways (such as discharge with a bulb with variable resistor discharge, discharge with the electrolyte and battery with low voltage discharge), can be selected according to specific conditions. In the discharge line, you must access ammeter in series, parallel on the voltage meter, voltage values observed in time, seize the opportunity to stop the discharge.
6) how to do reduce battery capacity
Battery charged, the use of time is not long enough to save electricity, starter rotation weakness, difficulty starting the engine, speakers, stereo volume down, lights dim, with high rates of single-cell battery discharge meter check the voltage less than 1. 5V, namely lower battery capacity. Should first check the suitability of generating capacity, if the voltage regulator is too low, the battery is stored for a long-term self-discharge, whether to use the starter too often, whether due to low electrolyte liquid electrolyte instead of distilled water and used to join the battery, if not the above problems, should the battery cover is open, check whether the lack of electrolyte. If the liquid level is too low and too long to make part of the plate exposed to sulfide, should check out the plate. If the surface of the plate shows a layer of white lead sulphate, note has been curing. If, after taking the plate, pour the electrolyte, the battery there are too many off the bottom shell plate active material or other impurities, indicating that these substances caused by the short circuit plate, causing insufficient capacity.
7) How to diagnose battery failure decreased charge storage capability
Drop charge storage capability, commonly known as "run electricity", the main phenomena: previous day keep electric car is still sufficient income, the next day starter on the weak rotation; engine flameout time longer, then start there is difficult; lights dim, speaker does not ring. Should check whether the battery wire bond strap. If bond strap, can be checked by the high rate of discharge cell voltage of each single hour inspections. Such as the start voltage reaches a certain value, it became an instant rapid decline, serious nowadays to 0, indicating short-circuit fault between the plates. Should open the battery cover and extracted with glass electrolyte, such as electrolyte turbidity, indicating electrolyte impurities. You should remove the plate, taking the partition observation, such as a perforated diaphragm, indicating perforation of the failure was caused by partition. Batteries should also check whether the surface is dirty and electrolyte overflow.
How to prevent battery explosion
In the beginning of a new battery charge and discharge process, the water is broken down to produce a large number of hydrogen and oxygen, if not promptly released, the battery will encounter sparks an explosion.
① should be inspected regularly to clear the dell xps m1530 battery cover and stuffed in the vent, the gases produced in a timely manner to ensure internal emitted;
② internal battery connections and electrical connections to pile on the firm to avoid spark;
③ battery power as possible to avoid piling on the scratch fire, so as not to detonate;
④ first open the battery lids, and then checked by the high rate of discharge.
9) How to use dry battery instead of storage battery
Car did not battery or battery is damaged, can be used instead of 6 to 8 dry batteries: the battery connected in series, with a cardboard Juan Chengyi body, one end of the bond strap, the other end connected with a wire coil on the ignition switch terminal, and then quickly shake his hand cranks crankshaft, you can start the engine. When the engine reaches a certain speed, make sure to supply power generators, and then removed.
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