This charger charges the battery until it reaches a specific voltage and then it trickle charges the battery until it is removed.A simple charger equivalent to a AC-DC wall adapter. It applies 300mA to the battery at all times, which damages the battery if left connected too long.Pay-per-charge kiosk, illustrating the variety of mobile phone charger connectors.Solar cell
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Batteries & Chargers

A battery charger is a device used to put energy into a cell or (rechargeable) battery by forcing an electric current through it. more...

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The charge current depends upon the technology and capacity of the battery being charged. For example, the current that should be applied to recharge a 12 V car battery will be very different to the current for a mobile phone battery.

Types of battery chargers

Simple

A simple charger works by connecting a constant DC power source to the battery being charged. 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.

Timer-based

The output of a timer charger is terminated after a pre-determined time. Timer chargers were the most common type for Ni-Cd cells in the late 1990s for example.

Often a timer charger and set of batteries could be bought as a bundle and the charger time was set to suit those batteries. If batteries of lower capacity were charged then they would be overcharged, and if batteries of higher capacity were charged they would be only partly charged. With the trend for battery technology to increase capacity year on year, an old timer charger would only partly charge the newer batteries.

Intelligent

Output current depends upon the battery's state. An intelligent charger may monitor the battery's voltage, temperature and/or time under charge to determine the optimum charge current at that instant. Charging is terminated when a combination of the voltage, temperature and/or time indicates that the battery is fully charged.

For Ni-Cd and NiMH batteries, the voltage over 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 ΔV charger, indicating that they monitor the voltage change.

Fast

Fast chargers, made by VARTA, Lenmar and other companies, make use of control circuitry in the batteries being charged to rapidly charge the batteries without damaging the cells' elements. Most such chargers have a cooling fan to help keep the temperature of the cells under control. Most are also capable of acting as a standard overnight charger if used with standard NiMH cells that do not have the special control circuitry. Some fast chargers, such as those made by Energizer, can fast-charge any NiMH battery even if it does not have the control circuit.

Read more at Wikipedia.org


adapter Ap-V14 Ap-V14U Ap-V14A Ap-V14E Ap-V15E for Jvc $15.99 Jenis Battery pack Pro with Lcd for Nikon D80 $139.99
3 Battery Bp-511+Charger for Canon G6/G5/Pro 1/70/90 Is $24.99 Bp-511A Battery+Charger for Canon Pro 70/90 Is/300D/40D $9.99
New Battery Charger for Np-Fh100 Sony Hdr-Sr11 Hdr-Sr12 $3.88 Jenis Battery pack Pro with Lcd Canon Eos 350D 400D $119.99
New Battery For Bn-Vf815 Jvc Gz-Mg555 Mg255 D796 Gz-Hd7 $5.95 Bp-511 Desktop+Car Charger for Canon G6/G5/G3/G2/G1/40D $4.99
Bn-Vm200U Battery+Car Charger for Jvc Gz-Mc500/Gz-Mc200 $9.98 Nu Sony Ecm-Hw1 Camcorder Bluetooth Wireless Microphone $138.80
New Battery Charger for Sony Hdr-Sr11 Hdr-Sr12 Hdr-Sr7 $3.88 Bn-Vm200/Bn-Vm200U Chargers for Jvc Gz-M500/Mc200/Mc100 $4.99
Battery For Fb1260 Fb-1260 Rca Cc-6251 Cc-6163 Cc-6363 $4.95 Battery For Bn-Vf823 Jvc Gz-Mg155 Gz-Mg255 Gz-Mg575 New $10.95
3 x Charger Bn-Vm200 for Jvc Gz-Mc100/Gz-Mc200/Gz-Mc50 0 $4.99 Battery Charger For Np-Fh100 Sony Hdr-Hc7 Hc5 Ux5 Ux7 $3.88
Battery Charger For Sony Np-Fh100 Dcr-Dvd405 Ac-Vqh10 $3.88 Battery Charger For Sony Np-Fh100 Dcr-Sr82 Sr80 Sr62 $3.88
Battery Charger For Sony Np-Fh50 Np-Fh60 Np-Fh100 Fh30 $3.88 Battery Charger for Sony Np-Fh70 Fh100 Fh50 Fh30 Fh40 $3.88
Battery Charger For Sony Np-Fh100 Hdr-Cx12 Ux20 Ux10 $3.88 Battery Charger for Sony Dcr-Dvd508 Dcr-Dvd408 Dvd308 $3.88
Battery Charger For Sony Dcr-Sr200 Dcr-Sr300 Dcr-Sr4 Nw $3.88 Battery Charger For Sony Np-Fh100 Dcr-Dvd610 Dcr-Dvd710 $3.88
battery charger for Np-F330 Sony Ccd-Trv930 Ccd-Trv940 $3.88 Battery Charger For Sony Hdr-Sr5 Hdr-Sr7 Ux5 Hdr-Ux7 Nw $3.88
New Battery Charger For Np-Fh100 Sony Dcr-Dvd108 Dvd408 $3.88 Battery Charger For Np-F550 Sony Dcr-Trv315 Dcr-Trv310 $3.88
Battery Charger for Np-F970 Sony Dsr-Pd170 Dsr-Pd150 $3.88 Battery Charger for Np-F330 Sony Mavica Mvc-Fd-88 Fd-83 $3.88
Battery Charger for Sony Ccd-Tr517 Dcr-Vx2000 Ccd-Tr818 $3.88 Battery Charger For F550 Np-F970 Sony Mvc-Fd75 Mvc-Fd5 $3.88
Battery Charger For Np-F330 Np-F550 Sony Ccd-Trv37 Hi8 $3.88 Battery Charger for Sony Dcr-Trv310 Dcr-Trv120 Dsr-200 $3.88
Battery Charger For Sony Np-F10 Np-F11 Np-Fs30 Np-Fs20 $3.88 Battery Charger for Np-F550 Sony Mavica Mvc-Fd200 Fd100 $3.88
Battery Charger for Np-Fc10 Sony Dsc-P7 Dsc-P8 Dsc-V1 $3.88 Battery Charger for Sony Np-F550 Np-F330 Np-F970 Npf960 $3.88
Battery Charger For Sony Np-Fc10 &Np-Fc11 Npfc10 Npfc11 $3.88 Battery Charger for Np-Fc11 Np-Fc10 Sony Dsc-P8 Dsc-P9 $3.88
Battery Charger+Cord for Panasonic Ag-Dvx100 Ag-Dvx100B $4.95 Ac/Dc Charger for Sony Handycam Dcr-Dvd405 Dcr-Dvd505 $3.88
Battery Charger For Sony Np-Fp50 Np-Fp60 Np-Fp7 Np-Fp90 $3.88 Battery Charger for Sony Dcr-Dvd105 Dcr-Dvd92 Hdr-Hc3E $3.88
Battery Charger For Np-Qm91D Sony Dcr-Dvd101 Dcr-Dvd201 $3.88 Battery Charger for Sony Handycam Dcr-Hc26 Dcr-Hc36 New $3.88
battery charger for Np-Fm50 sony Ccd-Trv118 Ccd-Trv128 $3.88 Ac/Dc Charger for Sony Np-Fm30 Np-Fm50 Battery Dsc-S85 $3.88
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Prices current as of last update, 11/20/08 4:17am.


See also...
Batteries, Batteries & Chargers, Camcorder Accessories
Chargers, Batteries & Chargers, Camcorder Accessories

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