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Electric gun battery is from 7 ~ 9 1.2V batteries strung together, each tablet fully charge the battery when the voltage rises to about 1.4V or so, so the output voltage of the charger must have at least 10 ~ 13V drive capability than was to will be fully charged battery strings. stun gun used battery capacity from 600mAh ~ 2000mAh or more have, the size of the charger to be able to take-all must be able to provide enough current for theThese days, with the speedy introduction of technology, how big laptop tablet computers evolved into small and additionally more compact, nonetheless full capacity of box gained larger and larger, plus the attribute is far more impressive. Maybe you presently suspected anything at all relating to tablet computers which is certainly among the most widely used gadgets for comprehensive consumer electronics market place, tablet computers read more superiorities versus all kinds of other computer, including scaled-down size, handheld to bring, wonderful design and styl
Basic knowledge of rechargeable batteries
One. Voltage: potential difference between the two poles as the battery voltage. There are nominal (rated) voltage, open circuit voltage, charge termination (cut-off) voltage and the discharge end
(Cut-off) voltage, the actual voltage. Just the factory battery, Toshiba Satellite 1000 Ac Adapter, the positive and negative electrical potential difference between the nominal voltage as the battery. Nominal voltage electrode from the electrode material
Potential and electrolyte concentration of the internal decision. When the ambient temperature, the use of time and work status changes, the unit of a slight change in the output voltage of the battery, in addition, electricity
Cell output voltage and battery power is left there is a certain relationship.
Nominal voltage of the battery used are:
Lithium iron phosphate (LiFePO4): 3.2V Li-Ion / Lithium Polymer (Li-ion/Lipo): 3.7V
Lithium manganese oxide (Li2MnO4): 3.7V ternary material (Ternary Material): 3.2V
Alkaline carbon column (LR / R_P): 1.5V alkaline button (AG): 1.5V
Lithium button column (CR): 3.0V lithium thionyl chloride (ER): 3.6V
The battery is fully charged, the voltage just as the open circuit voltage; battery fully charged, Toshiba Satellite 1000 Ac Adapter, Toshiba Satellite 1600 Ac Adapter, Toshiba Satellite 1800 Ac Adapter, Toshiba Satellite 5000 Ac Adapter, Toshiba Satellite A10 Ac Adapter, the most active substances board has reached the saturation point, and then continue charging
The battery voltage does not rise, then known as the charge termination voltage of the voltage. Actually measured the battery voltage as the actual voltage.
Nickel-cadmium battery charge termination voltage of 1.75 ~ 1.8V; lithium-ion battery charge termination voltage of 4.25V;
Ni-MH battery charge termination voltage of 1.5V; lithium polymer battery charge termination voltage of 4.25V;
Discharge the battery termination voltage is the minimum allowable discharge voltage. Toshiba Satellite 1600 Ac Adapter, If the voltage is lower than the discharge termination voltage to the battery to discharge, the battery voltage at both ends
Decreased rapidly, the formation of deep discharge, so that the resultant formation of plates in the normal charge is not easy to be recovered, thus affecting the battery life. Discharge termination
Voltage and discharge rate related. Direct impact on the discharge current discharge termination voltage. Termination of the required discharge voltage, discharge current increases, the battery capacity is smaller.
Nickel-cadmium battery discharge termination voltage is generally in the 1.0V-1.1V; lithium-ion battery discharge termination voltage of 3.0V
Ni-MH battery discharge termination voltage is generally defined as 1V; lithium polymer battery discharge termination voltage of 3.0V
II. Current: battery charging current is usually expressed by the charging rate C, C is the battery nominal (rated) capacity. For example, a 1Ah battery charge current on the 2A
Electricity, charging rate is 2C; Similarly, with 2A current on the 500mAh battery, the charging rate is 4C.
III. Capacity: The battery is fully charged after a certain discharge conditions, the release to the required termination voltage, the battery’s total capacity as the battery release of the nominal (rated) capacity.
Battery capacity is usually Ah (ampere hour), said, 1Ah is able to 1A of current discharge for 1 hour. Active substances within the cell number of the battery cell battery with the decision
Of charge, while the content of active substances from battery materials and volume decisions, usually the larger battery size, capacity is higher.
IV. Resistance: the battery internal resistance depends on the plate resistance and the impedance of ion flow. In the charge-discharge process,Toshiba Satellite 1800 Ac Adapter, the resistance of the plate is constant, but the ion flow resistance
Resistance will change with the electrolyte concentration changes and changes of charged ions.
Five. Category:
1. By the appearance of: Park is divided into columnar, square, button, shaped, combination type.
2. According to the frequency of use: including a battery (not reusable, such as batteries,Toshiba Satellite 1000 Ac Adapter, Toshiba Satellite 1600 Ac Adapter, Toshiba Satellite 1800 Ac Adapter, Toshiba Satellite 5000 Ac Adapter, Toshiba Satellite A10 Ac Adapter, etc), rechargeable battery (many charge cycles can be used, such as nickel hydrogen ion, etc.).
3. According to materials: nickel cadmium into nickel hydrogen, lithium ion lithium polymer, carbon alkaline, lithium thionyl chloride, silver oxide, lead-acid batteries.
VI. Memory effect: Ni-MH Ni-Cd batteries in use, if not fully discharged battery began to charge, discharge, next time, we can not release all the power
Volume. For example, nickel-cadmium battery only after the release of 80% of the electricity starts charging, fully charged, the battery can only emit 80% of the electricity, a phenomenon known as the nickel-metal hydride
Nickel-cadmium battery memory effect. Memory effect can be used to eliminate many of the over-discharge.
VII. Series / parallel: When the battery pack in series, the voltage is superimposed, the same capacity; when the battery pack in parallel, the capacity of superposition, the voltage change.
VIII. Charging and charging methods:
The battery charging process can generally be divided into pre-charge, Toshiba Satellite 5000 Ac Adapter, fast charge, top-up charge, trickle charge four stages.
Long-term unused or new battery, the first to use fast charging, it will affect battery life. Thus, the battery should be with a small current
Charging, charging to meet certain conditions, this stage is called pre-charge.
Fast charging is to use high-current charging, the battery power quickly restored. Fast charge rate is generally more than 1C, fast charge time and charge the battery capacity
Electric rate decision.
In order to avoid over charging, the charger uses a number of small current charge. Ni-MH rechargeable nickel-cadmium batteries properly, you can accept the charging rate of C/10 or lower,
This charging time to 10 hours or more. The use of small current charge, the battery will not produce too much gas, the battery temperature will not be too high. As long as the battery received
Charger, the low rate constant current battery charger can provide a small trickle charge current. The heat generated within the battery can be naturally dispersed.
Fast charge constant current charging and pulse charging sub-two, constant-current charge is a constant current to the current charging, pulse charging is the first use of pulse current on
Battery charging, and then let the battery discharge, and so on. Great battery pulse amplitude, width very narrow. Discharge pulse amplitude usually charge about 3 times the pulse
Although the amplitude of the pulse discharge on the battery capacity, but,Toshiba Satellite 1000 Ac Adapter, Toshiba Satellite 1600 Ac Adapter, Toshiba Satellite 1800 Ac Adapter, Toshiba Satellite 5000 Ac Adapter, Toshiba Satellite A10 Ac Adapter, with the ratio of charging current amplitude remained unchanged.
Ended with some of the fast charging method, the fast charge termination, the battery is not fully charged. Filled in order to ensure 100% of the electricity, make up the charge should be added
Process. Make up the charging rate of not more than 0.3C. Make up the charge in the process, Toshiba Satellite A10 Ac Adapter, the temperature will continue to rise, when the temperature exceeds the limit, the charger into the
Trickle charge state.
Storage, nickel metal hydride nickel-cadmium battery will discharge rate of C/30 to C/50 reduced to compensate for battery self-discharge due to the loss of power, top-up charge
After the trickle charger should automatically be transferred to power the process, also known as trickle charge to maintain charge. According to self-discharge characteristics of batteries, trickle charge rates are generally low.
As long as the battery connected to the charger and the charger plugged in the maintenance of state of charge, the charger to the battery charging rate will be a supplementary charge, this would
The total is in the battery fully charged state.
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The choice of charger
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Electric gun battery is from 7 ~ 9 1.2V batteries strung together, each tablet fully charge the battery when the voltage rises to about 1.4V or so, so the output voltage of the charger must have at least 10 ~ 13V drive capability than was to will be fully charged battery strings. stun gun used battery capacity from 60
