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Substitution of lithium batteries Motorola L2000

In Electronic Infomation Category: S | on April 20,2011

I use Motorola L2000 mobile phones equipped with a Motorola SNN5520A type, 3.6V, 580mAh lithium battery, the lithium board about a year after the use of the characteristics of its decline in lithium battery, standby and MC14584BCL datasheet and talk time are significantly shorter that when the lithium battery is fully charged, the battery signal is full of cell phone displays, but less than 24 hours of standby time, the battery capacity of the signal that fall, take a few phone calls, mobile phone battery low signal will be issued. If more than one-hour battery charge to full, place a few hours the battery voltage down to 3.5V and MC14584BCL price and from about 4V. Such a charge to full, one with a lithium battery on the end, do not use, ready to waste. But want to use another type lithium battery can be replaced? So I order the two new original Siemens lithium battery plate, model V30145-K, the battery voltage 3.7V, 600mAh, appearance is very beautiful, we decided on the L2000 cell phone lithium battery to "cut" for the core.

Siemens board its dimensions and MC14584BCL suppliers and the lithium battery mobile phone lithium battery L2000 differences in board size is not very suitable replacement. But there are differences between the two, throwing Siemens batteries and L2000 cell phone on the "+""-" very very opposite panels "+""-", L2000 cell phone lithium metal is "-" pole, and Siemens lithium batteries metal case is the "+"; and protection of its internal circuit boards are different. It was decided to replace the lithium batteries, in order to maintain the original battery casing and circuit protection board unchanged.

First shell L2000 cell phone lithium battery plate paste paper trademark to use the utility knife cut open and carefully pry the internal batteries and battery box separate from, and write good batteries circuit protection board "+"

"-" Pole, and then a sharp knife on both ends of the batteries and circuit board connection pieces cut protection (in the process of cutting to be careful not to force too much, so as not to damage the protective film printed circuit board), from forced open the perspective of two lithium batteries, two batteries volume size is insignificant, see Table. Siemens lithium batteries lithium batteries smaller than the size of L2000 cell phone, Siemens mobile phone Li-ion battery 12000 lithium batteries into the box is very appropriate. In particular, remind that, for Siemens cell lithium metal is "+" pole, installed core welding no mistake, otherwise it will damage the patch panel circuit protection components. With two thin wire (best to use two different colors) welding in the Siemens batteries "+""-" pole, and then welded to the corresponding wires on the batteries soldered circuit protection board "+""- "pole (welding circuit protection to prevent electrostatic damage to the board of the chip components, you should disconnect the electric iron power, and the welding speed to be fast, to prevent short circuits and damage the battery plates). After welding as is battery compartment (battery into the box, its a bit up and down the gap, the available foam filled), with a multimeter measure the battery cover "+""-" pins have voltage, normal case there is about 3.6V voltage, internal batteries that power and circuit protection board in the normal scope of work. Then mark the original battery in the battery case and then paste, so that replacement batteries come to an end.

The normal charge time for charging the electrical panels, electrical panels to be fully charged if the voltage measured around 4V, you can use on the machine. The use of the time and its stability and the use of a new lithium battery Ban original compared favorably, very good value.

E-merchants now sell some of the Guangdong region of used lithium batteries a lot, and a variety of specifications, models complete, the price is generally around 7-8 million, good only 10-12 yuan, and the batteries are basically imports, and some lithium batteries, or even new. Whatever the cell phone batteries, as long as the volume and the need to replace the batteries of the same size batteries can be put into the original size of the battery box, can usually be replaced (but make sure the battery on the original circuit protection board is intact.) Interested parties may wish to try.

Type voltage lithium batteries (V) Capacity (mAh) Dimensions (mm)

MOTOROLA

SNN5520A 3.6

580

48x29x6

SIEMENS

V30145-K 3.7

600

40x29x4.8

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