Manual Mobile Phone Ccharger
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Battery charger - Wikipedia, the free encyclopedia. This unit charges the batteries until they reach a specific voltage and then it trickle charges the batteries until it is disconnected. It applies 3. 00m. A to the battery at all times, which will damage the battery if left connected too long. A battery charger, or recharger. Some battery types have high tolerance for overcharging and can be recharged by connection to a constant voltage source or a constant current source; simple chargers of this type require manual disconnection at the end of the charge cycle, or may have a timer to cut off charging current at a fixed time.
Other battery types cannot withstand long high- rate over- charging; the charger may have temperature or voltage sensing circuits and a microprocessor controller to adjust the charging current, determine the state of charge, and cut off at the end of charge. A trickle charger provides a relatively small amount of current, only enough to counteract self- discharge of a battery that is idle for a long time. Slow battery chargers may take several hours to complete a charge; high- rate chargers may restore most capacity within minutes or less than an hour, but generally require monitoring of the battery to protect it from overcharge. Electric vehicles need high- rate chargers for public access; installation of such chargers and the distribution support for them is an issue in the proposed adoption of electric cars. C- rates. The C- rate is given by the numerical value of the ratio of the charging or discharging current in A to the capacity of the battery in Ah. For example, for a battery with a capacity of 5.
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Ah, the current corresponding to a C- rate of 1. A or 5. A, while the current corresponding to a C- rate of 1/2 and a charge or discharge time of 2 hours would be 2. Gta 4 Crack Camera Fix read more.
A. The simple charger does not alter its output based on time or the charge on the battery. This simplicity means that a simple charger is inexpensive, but there is a tradeoff in quality. Typically, a simple charger takes longer to charge a battery to prevent severe over- charging. Even so, a battery left in a simple charger for too long will be weakened or destroyed due to over- charging. These chargers can supply either a constant voltage or a constant current to the battery.
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Simple AC- powered battery chargers have much higher ripple current and ripple voltage than other kinds of battery supplies. When the ripple current is within the battery- manufacturer- recommended level, the ripple voltage will also be well within the recommended level. The maximum ripple current for a typical 1. V 1. 00 Ah VRLA battery is 5 amps. As long as the ripple current is not excessive (more than 3 to 4 times the battery- manufacturer- recommended level), the expected life of a ripple- charged VRLA battery is within 3% of the life of a constant DC- charged battery. Most such chargers have a cooling fan to help keep the temperature of the cells under control. Most are also capable of acting as standard overnight chargers if used with standard Ni.
MH cells that do not have the special control circuitry. Inductive chargers. A charging station sends electromagnetic energy through inductive coupling to an electrical device, which stores the energy in the batteries. This is achieved without the need for metal contacts between the charger and the battery. It is commonly used in electric toothbrushes and other devices used in bathrooms. Because there are no open electrical contacts, there is no risk of electrocution.
Intelligent chargers. A smart battery is generally defined as one containing some sort of electronic device or . A smart battery generally requires a smart charger it can communicate with (see Smart Battery Data). A smart charger is defined as a charger that can respond to the condition of a battery, and modify its charging actions accordingly. Some smart chargers are designed to charge. An intelligent charger may monitor the battery's voltage, temperature or time under charge to determine the optimum charge current and to terminate charging. For Ni- Cd and Ni.
MH batteries, the voltage across the battery increases slowly during the charging process, until the battery is fully charged. After that, the voltage decreases, which indicates to an intelligent charger that the battery is fully charged. Such chargers are often labeled as a . Overcharging of the batteries will result in some cases.
Galaxy Grand Samsung User Manual. This is the user manual for the Samsung Galaxy Grand telephone. We have listed the specification of the phone below. Check with Samsung before you buy the phone to ensure that there has not been an upgrade in the specs of the telephone. You can also find the Samsung USB driver on this website. The Galaxy Grand is very much in line with the Samsung Galaxy S II Mobile phone in terms of specs. It has a dual core processor and this runs at 1.
GHz which is as fast as the SII phone. There is also 1. GB of RAM and a 5inch display with an 8.
MP camera. See the Samsung PC Suite for more options.. Galaxy Grand Samsung Specification: General Information.
Brand. Samsung. Model. Galaxy Grand. Weight.
How to Upgrade, Repair, Disassemble a Nokia Mobile (Cellular) Phone. Need to repair your Nokia(tm) mobile (cellular) phone? But if you get only the glass you will need to use heat to soften the glue to get it removed from the frame. Nokia 7. 00. How to do a complete disassembly procedure, a guide with pics (in Italian). Nokia 9. 18p. Disassembling, painting and LED modding illustrated.
Nokia 1. 10. 0Illustrated dismantling instructions. Nokia 1. 11. 0This illustrated guide explains how to add a blue SMD LED (in German). Nokia 1. 10. 0Keypad flashing: this helpful video shows all you need to get the keypad out and a new one in. Nokia 1. 10. 0This short guide into the innards of the cellphone can't replace a full service manual, but it works for a start. Nokia 1. 11. 2A concise take cellphone take apart and repair guide with pictures. Nokia 1. 20. 8A comprehensive LCD replacement manual.
Nokia 1. 26. 0Disassembly instructions with pictures. Nokia 2. 11. 0How to refurbish a broken cell phone a flashlight. Nokia 2. 22. 0 Slide. With this guide at hand you can open the slidephone easily. Nokia 2. 30. 0An illustrated dismantling tutorial. Nokia 2. 31. 0First remove the battery cover, battery and SIM card. Turn the phone over and remove the front cover.
It just pulls off and you can go on to substitute the LCD screen. Nokia 2. 33. 0With the assistance of this guide it becomes fairly easy to take this cellphone apart and replace the inner parts. Nokia 2. 60. 0 Classic. Cellphone take apart and LCD substitution guide. Nokia 2. 61. 0A small cellularphone take apart guide.
Nokia 2. 61. 0 Hopefully this video will help to get this mobile phone openend and repaired. Nokia 2. 61. 0Have you dropped your cellphone and broke the LCD screen? Surprisingly this is really easy to fix; everyone can do it. All you need is a few basic tools, and around an hour work. Nokia 2. 63. 0LCD replacement: an illustrated step- by- step DIY tutorial. Nokia 2. 65. 0An illustrated autopsy tutorial.
Nokia 2. 68. 0 Slide. This is an easily understandable slidephone disassembly and repair guide. Nokia 2. 71. 0 Navigator. A Torx 4 screwdriver and this manual will help to get this mobile phone repaired. Nokia 2. 73. 0 Classic. This take apart guide helps you troubleshooting a broken cell phone.
Nokia 2. 76. 0There are a few screws in the back of the phone but you do not need to remove them in order to change the LCD screens. Nokia 2. 77. 0A short keypad flashing videp tutorial.
Nokia 3. 10. 0Take apart instructions and pictures. Nokia 3. 10. 0Replacement guide to get the keypad out and another one into the cellphone.
Nokia 3. 11. 0All the tips and tricks to get the phone display replaced. Nokia 3. 12. 0How to replace the display of a mobile phone. Nokia 3. 12. 0 Classic. This cellphone teardown guide can be useful if you have questions about LCD substitution.
Nokia 3. 20. 0Relive the glory days with this NES Controller that has been modified into a cellphone. Everything is original - the buttons and casing. Nokia 3. 20. 0A brief video about creating an NES controller cellphone. The electronics used didn't quite fit, so it ended up a little flat . Picture of the PCB (Printed Circuit Board). Nokia 3. 21. 0Changing LED (call.: Blue LED solution) can be very simple.
Nokia 3. 21. 0Illustrated dismantling instructions. Nokia 3. 21. 0This HOWTO explains how to add a vibration motor into the housing of the mobile phone (in German). Nokia 3. 21. 0How make the LEDs blink in sync with the vibration motor (in German).
Nokia 3. 21. 0How to add a vibration motor (in German). Nokia 3. 21. 0Four solutions to avoid the flicker of white LEDs, caused by the DC/CD convertor (V1. TEA1. 21. 0TS) (in German). Nokia 3. 21. 0A short HOWTO showing how to take apart the cellular phone and add a vibration motor, no soldering required (in German). Nokia 3. 21. 0A second life for an old mobile phone: how to build a remote car heater control system (in German). Nokia 3. 21. 0This guide provides a step- by- step tutorial explaining the replacement of the SMD LEDs (in German).
Nokia 3. 21. 0How to substitute the LEDs with blue one (in German). Nokia 3. 21. 0How to put a vibration alarm motor into the cellphone (in German). Nokia 3. 21. 0LED replacement tutorial: how to change the LED to a new color, e. This HOWTO explains how to create a mold from hard plaster and filling it with silicone. This HOWTO explains how to create a caliper mold from hard plaster and filling it with silicone (in German). Nokia 3. 31. 0How to remove a part L5. German). Nokia 3.