Replacement Toshiba Satellite A70 battery|New High Quality Toshiba Satellite A70 battery Toshiba Satellite A70 battery Description: Type: Li-ion Capacity: 6600 mAh Volt: 14.8 V Size: 271.00x71.60x26.30 mm Color: Black Toshiba Satellite A70 battery Compatible original Battery Code: PA3383PA3383UPA3383U-1BASPA3383U-1BRS Toshiba Satellite A70 battery Fit with below: Satellite A70Satellite A70-S2362Satellite A70-S249Satellite A70-S2491Satellite A70-S2492STSatellite A70-S256Satellite A70-S2561Satellite A70-S259Satellite A70-S2591Satellite A75Satellite A75-S125Satellite A75-S1251Satellite A75-S1252Satellite A75-S1253Satellite A75-S1254Satellite A75-S1255Satellite A75-S206Satellite A75-S2061Satellite A75-S209Satellite A75-S2091Satellite A75-S211Satellite A75-S2111Satellite A75-S213Satellite A75-S2131Satellite A75-S226Satellite A75-S2261Satellite A75-S229Satellite A75-S2291Satellite A75-S2292Satellite A75-S2293Satellite A75-S231Satellite A75-S2311Satellite A75-S276Satellite A75-S2761Satellite A75-S2762Satellite P30Satellite P30-107Satellite P30-110Satellite P30-116

Replacement Toshiba Satellite A100 battery|New High Quality Toshiba Satellite A100 battery Toshiba Satellite A100 battery Description: Type: Li-ion Capacity: 4400 mAh Volt: 14.8 V Size: 206.50 x 45.00 x 20.30 mm Color: Black Toshiba Satellite A100 battery Compatible original Battery Code: PA3399U-1BASPA3399U-1BRSPA3399U-2BASPA3399U-2BRSPA3400U-1BRSPA3478U-1BRSPABAS057PABAS076 Toshiba Satellite A100 battery Fit with below: Dynabook VX SeriesM45-S165XM45-S169Satellite A100Satellite A105Satellite A80Satellite M100Satellite M105Satellite M110Satellite M115Satellite M40Satellite M45Satellite M50Satellite M55Satellite Pro A100Satellite Pro M50Tecra A3Tecra A4Tecra A5Tecra A6Tecra A7Tecra S2

Replacement Toshiba Satellite A10 battery |New High Quality Toshiba Satellite A10 Series battery Toshiba Satellite A10 Series battery Description: Type: Li-ion Capacity: 4400mAH Volt: 10.8V Size: 129.60 x 71.76 x 20.20 mm Color: Black Toshiba Satellite A10 battery Compatible original Battery Code: PA3284U-1BASPA3284U-1BRSPA3285U-1BASPA3285U-1BRSPA3285U-2BASPA3285U-2BRSPABAS073 Toshiba Satellite A10 battery Fit with below: Qosmio E10Qosmio E10 SeriesQosmio E15Qosmio E15 SeriesQosmio F10Qosmio F10 SeriesQosmio F10-100Qosmio F10-105Qosmio F10-124Qosmio F10-125Qosmio F10-130Qosmio F15 SeriesQosmio G10Qosmio G10 SeriesQosmio G10-100Qosmio G10-106Qosmio G10-124Qosmio G10-133Qosmio G10-134Qosmio G15 SeriesQosmio G15-AV501Qosmio G20Qosmio G20 SeriesQosmio G20-102

Replacement Dell Inspiron 8100 battery|New High Quality Dell Inspiron 8100 battery
Dell Inspiron 8100 battery Description:
Type: Li-ion
Capacity: 4400 mAh
Volt: 14.8 V
Size: 139.00 x 89.70 x 23.30 mm
Color: Gray
Dell Inspiron 8100 battery Compatible original Battery Code:
1691P1K5002M400312-0009312-0028312-32503149C3H3523H6253K1205081P5208U53977669126H41075UYF77TCJ851UY8M815BAT-I3700IM-M150268-GB
Dell Inspiron 8100 battery Fit with below:
Inspiron 2500Inspiron 3700Inspiron 3800Inspiron 4000Inspiron 4100Inspiron 4150Inspiron 8000Inspiron 8100Inspiron 8200Latitude CLatitude C500Latitude C510Latitude C540Latitude C600Latitude C610Latitude C640Latitude C800Latitude C810Latitude C840Latitude CPLatitude CPiLatitude CPi 233STLatitude CPi 366Latitude CPi A366STLatitude CPi A366XTLatitude CPi D233Latitude CPi D266XTLatitude CPIALatitude CPICLatitude CPIDLatitude CPIRLatitude CPIR400GTLatitude CPMLatitude CPM166STLatitude CPM233STLatitude CPM233XTLatitude CPTLatitude CPT C333GTLatitude CPTCLatitude CPTSLatitude CPTVLatitude CPTV466GT

Replacement Dell Inspiron 4000 battery|New High Quality Dell Inspiron 4000 battery
Dell Inspiron 4000 battery Description:
Type: Li-ion
Capacity: 4400 mAh
Volt: 14.8 V
Size: 139.00 x 89.70 x 23.30 mm
Color: Gray
Dell Inspiron 4000 battery Compatible original Battery Code:
1691P1K5002M400312-0009312-0028312-32503149C3H3523H6253K1205081P5208U53977669126H41075UYF77TCJ851UY8M815BAT-I3700IM-M150268-GB
Dell Inspiron 4000 battery Fit with below:
Inspiron 2500Inspiron 3700Inspiron 3800Inspiron 4000Inspiron 4100Inspiron 4150Inspiron 8000Inspiron 8100Inspiron 8200Latitude CLatitude C500Latitude C510Latitude C540Latitude C600Latitude C610Latitude C640Latitude C800Latitude C810Latitude C840Latitude CPLatitude CPiLatitude CPi 233STLatitude CPi 366Latitude CPi A366STLatitude CPi A366XTLatitude CPi D233Latitude CPi D266XTLatitude CPIALatitude CPICLatitude CPIDLatitude CPIRLatitude CPIR400GTLatitude CPMLatitude CPM166STLatitude CPM233STLatitude CPM233XTLatitude CPTLatitude CPT C333GTLatitude CPTCLatitude CPTSLatitude CPTVLatitude CPTV466GTLatitude CPXLatitude CPXHLatitude CPXH 500GTLatitude CPXJLatitude CPXJ650GTLatitude PP01LLatitude PP01XLatitude PPLLatitude PPX

Replacement Dell Inspiron 4100 battery|New High Quality Dell Inspiron 4100 battery
Dell Inspiron 4100 battery Description:
Type: Li-ion
Capacity: 4400 mAh
Volt: 14.8 V
Size: 139.00 x 89.70 x 23.30 mm
Color: Gray
Dell Inspiron 4100 battery Compatible original Battery Code:
1691P1K5002M400312-0009312-0028312-32503149C3H3523H6253K1205081P5208U53977669126H41075UYF77TCJ851UY8M815BAT-I3700IM-M150268-GB
Dell Inspiron 4100 battery Fit with below:
Inspiron 2500Inspiron 3700Inspiron 3800Inspiron 4000Inspiron 4100Inspiron 4150Inspiron 8000Inspiron 8100Inspiron 8200Latitude CLatitude C500Latitude C510Latitude C540Latitude C600Latitude C610Latitude C640Latitude C800Latitude C810Latitude C840Latitude CPLatitude CPiLatitude CPi 233STLatitude CPi 366Latitude CPi A366STLatitude CPi A366XTLatitude CPi D233Latitude CPi D266XTLatitude CPIALatitude CPICLatitude CPIDLatitude CPIRLatitude CPIR400GTLatitude CPMLatitude CPM166STLatitude CPM233STLatitude CPM233XT

A modern battery is a delicate storage device that requires protection to safeguard against damage. The most basic protection is a fuse that opens on excess current. Some fuses disengage permanently and render the battery useless once the filament is broken; other safety devices are resettable. IBM 08K8192 Battery The Polyswitch™ is such a resettable fuse. Connected into the battery's current path, this device creates a high resistance on excess current. The Polyswitch™ reverts to the low ON position when the condition normalizes, allowing operation to resume.

Batteries used in hazardous areas must be intrinsically safe. IBM 08K8192 Battery, IBM 92P1101 Battery, IBM 92P1089 Battery, IBM 92P1087 Battery, Hazardous areas include oil refineries, mines, grain elevators and fuel handling at airports. These areas are typically serviced with two-way radios and computing devices. Intrinsically safe batteries prevent excessive heat buildup and the danger of an electric spark on equipment failure. Because of tight approval standards, intrinsically safe batteries carry twice to three-times the price tag of regular packs.

Another battery that contains high-level protection is lithium-ion. This is done to assure safety under all circumstances while in the hands of the public. Typically, a Field Effect Transistor (FET) opens if the charge voltage of any cell reaches 4.30V. A separate fuse opens if the cell temperature approaches 90°C (194°F). In addition, a disconnect switch in each cell permanently interrupts the charge current if a safe pressure threshold of about 10 Bar (150 psi) is exceeded. To prevent the battery from over-discharging, the control circuit cuts off the current path at about 2.50V/cell. Prolonged storage at voltages of 1.5V/cell and lower damages the lithium-ion, causing safety problems if attempted to recharge.

Figure 1: A common safety circuit for cellular phone applications.
Because of improved thermal stability of manganese-based lithium-ion, IBM 92P1101 Battery manufacturers relax the need for an external safety circuit on packs with two cells in series.

Each parallel string of cells in a lithium-ion pack needs independent voltage monitoring. IBM 08K8192 Battery, IBM 92P1101 Battery, IBM 92P1089 Battery, IBM 92P1087 Battery,In addition, each cell in series must be monitored for voltage. The more cells that are connected in series, the more complex the protection circuit becomes. Four cells in series is the practical limit for commercial applications.

The internal protection circuit must be designed to add as little resistance as possible to the current path. The circuit of a cell phone battery often consists of two FET switches connected in series. One FET is responsible for high, the other for low voltage cut-off. The combined resistance of the FETs in the ON position is 50-100milli Ohms (mW). This virtually doubles the internal resistance of a battery pack.

A major concern arises if static electricity or a faulty charger destroys the battery's protection circuit. This may result in permanently fusing the solid-state switches in an ON position without the user's knowledge. A battery with a faulty protection circuit may function normally but will not provide protection. If charged over a voltage limit (4.20V/cell should not be exceeded) with a defective charger, venting with flame could occur. Such a situation must be avoided at all cost. Shorting such a battery could also be hazardous.

Low-cost cell phone batteries have infiltrated the world market since the beginning of 2003,IBM 92P1089 Battery . These counterfeit batteries often do not have an approved protection circuit and can vent with flame if the charger malfunctions. Cell phone manufacturers strongly advise customers to replace the battery with an approved brand. Failing to do so may void the warranty. It is also highly recommended to only use approved chargers. (See photos of an exploded cell phone with a clone battery that was on charge.)

Figure 2: Damaged cell phone.
A cell phone with a no-brand battery vented with flame while charging in the back of a car.

When advising on the choice of batteries and chargers, cell phone manufacturers act out of genuine concern for safety rather than using scare tactics to persuade customers to buy their own accessories. They do not object third parties as long as the products are well built and safe. The buyer can often not distinguish between an original and a counterfeit battery because the label may appear bona fide.

Small lithium-ion packs with spinel (manganese) chemistry containing one or two cells may only include a fuse as protection. IBM 08K8192 Battery, IBM 92P1101 Battery, IBM 92P1089 Battery, IBM 92P1087 Battery,Spinel is more tolerant to abuse than cobalt and the cells are deemed safe if below a certain size.

Although less expensive, the absence of a protection circuit introduces a new problem. Cell phone users have access to low-cost chargers that may rely on the battery's protection circuit to terminate charge. Without the protection circuit, the cell voltage rises too high and damages the battery. Excess heat,IBM 92P1087 Battery even bulging can result. Discontinue using the battery and charger if a lithium-ion battery gets hot.

Figure 3: Budging of a lithium-ion cell.
Prismatic Lithium-ion cells are subject to budging, causing stress on the battery compartment of portable devices.

To maintain safe operation, manufacturers do not sell the lithium-ion cells by themselves but make them available in a battery pack, complete with protection circuit. The circuit is often subject to exact scrutiny before the manufacturers release cells to the pack assemblers. Although there are a few reported incidents of venting with flame, the lithium-ion battery is safe.

Battery packs get their desired operating voltage by connecting several cells in series. If higher capacity and current handling is required, the cells are connected in parallel. Some packs have a combination of serial and parallel connections. A laptop battery may have four 3.6 volts lithium-ion cells connected in series to achieve 14.4V and two cells in parallel to increase the capacity from 2000mAh to 4000mAh.IBM 08K8194 Battery Such a configuration is called 4S2P, meaning 4 cell are in series and 2 in parallel.

Single cell applications

Single cell batteries are used in watches, memory back up and cell phones. The nickel-based cell provides a nominal cell voltage of 1.2V; alkaline is 1.5V; silver-oxide 1.6V, lead-acid 2V; primary lithium 3V and lithium-ion 3.6V. Spinel,IBM 08K8194 Battery, IBM 08K8196 Battery, IBM 92P1102 Battery , IBM 92P1077 Battery, lithium-ion polymer and other lithium-based systems sometimes use 3.7V as the designated cell voltage. This explains the unfamiliar voltages such as 11.1V if three cells are connected in series. Modern microelectronics makes it possible to operate cell phones and other low power portable communications devices from a single 3.6V lithium-ion cell. Mercury, a popular cell for light meters in the 1960s has been discontinued because of environmental concerns.

Nickel-based cells are either marked 1.2V or 1.25V. There is no difference in the cells but only preference in marking. Most commercial batteries are identified with 1.2V/cell; industrial, aviation and military batteries are still marked with 1.25V/cell.

Serial connection

Portable equipment with high-energy needs is powered with battery packs in which two or more cell are connected in series. Figure 1 shows a battery pack with four 1.2-volt cells in series. The nominal voltage of the battery string is 4.8V.

Figure 1: Serial connection
of four cells.
Adding cells in a string increases the voltage but the current remains the same.

High voltage batteries have the advantage of keeping the conductor and switch sizes small. IBM 08K8196 Battery Medium-priced industrial power tools run on 12V to 19.2V batteries; high-end power tools go to 24V and 36V to get more power. The car industry will eventually increase the starter-light-ignition (SLI) battery from 12V (14V) to 36V, better known as 42V. These batteries have 18 lead-acid cells in series. The early hybrid cars are running on 148V batteries. Newer models feature batteries with 450-500V; mostly on nickel-based chemistry. A 480-volt nickel-metal-hydride battery has 400 cells in series. Some hybrid cars are also experimenting with lead acid.

42V car batteries are expensive and produce more arcing on the switches than the 12V.IBM 08K8194 Battery, IBM 08K8196 Battery, IBM 92P1102 Battery , IBM 92P1077 Battery, Another problem with higher voltage batteries is the possibility of one cell failing. Similar to a chain, the more links that are connected in series, the greater the odds of one failing. A faulty cell would produce a low voltage. In an extreme case, an open cell could break the current flow. Replacement of a faulty cell is difficult because of matching. The new cell will typically have a higher capacity than the aged cells.

Figure 2 illustrates a battery pack in which cell 3 produces only 0.6V instead of the full 1.2V. With the depressed operating voltage, the end-of-discharge point will be reached sooner than with a normal pack and the runtime is severely shortened. Once the equipment cuts off due to low voltage, the remaining three cells are unable to deliver the stored energy. Cell 3 could also exhibit a high internal resistance, causing the string to collapse under load. A weak cell in a battery string is like a blockage in a garden hose that restricts water flow. Cell 3 could also be shorted, which would lower the terminal voltage to 3.6V, or be open and cut off the current. A battery is only as good as the weakest cell in the pack.

Figure 2: Serial connection
with one faulty cell.
Faulty cell 3 lowers the overall voltage to 4.2V, IBM 92P1102 Battery causing the equipment to cut off prematurely.

Parallel connection

To obtain higher ampere-hour (Ah) ratings, two or more cells are connected in parallel. The alternative to parallel connection is using a larger cell. This option is not always available because of limited cell selection. In addition, bulky cell sizes do not lend themselves to build specialty battery shapes. Most chemistries allows parallel connection and lithium-ion is one of the best suited. Figure 3 illustrates four cells connected in parallel. The voltage of the pack remains at 1.2V but the current handling and runtime are increased four fold

Figure 3: Parallel connection
of four cells.
With parallel cells, the voltage stays the same but the current handling and runtime increases.

A high resistance or open cell is less critical in a parallel circuit than the serial configuration but the parallel pack will have reduced load capability and a shorter runtime. It's like an engine running only on three cylinders.IBM 08K8194 Battery, IBM 08K8196 Battery, IBM 92P1102 Battery , IBM 92P1077 Battery, An electrical short would be more devastating because the faulty cell would drain the energy from the other cells, causing a fire hazard. Figure 4 illustrates a parallel configuration with one faulty cell.

Figure 4: Parallel connection
with one faulty cell.
A weak cell will not affect the voltage but provide a low runtime. IBM 92P1077 Battery A shorted cell could cause excessive heat and create a fire hazard.

Serial/parallel connection

Figure 5 illustrates a parallel/serial connection. This allows good design flexibility and attains the wanted voltage and current ratings by using a standard cell size. It should be noted that the total power does not change with different configurations. The power is the product of voltage times current.

Figure 5: Serial/ parallel connection of four cells.
The configurations will not affect the overall power but provide the most suitable voltage and current source for the application.

Serial/parallel connections are common with lithium-ion. One of the most popular cells is the 18650 (18mm diameter; 650mm long). Because of the protection circuit, which must monitor each cell connected in series, the maximum practical voltage is 14.4V. The protection must also monitor strings placed in parallel.

Lithium-ion batteries are safe when used as directed. The same safety cannot be assured if individual cells of unknown nature are connected in series and parallel to build a battery pack. Not all lithium-ion cells are suited for muli-cell packs. Only cells that meet tight voltage and capacity tolerances can be used for serial and parallel connection.IBM 08K8199 Battery Mismatched packs are subject to overcharge, resulting in venting with flame and fire. Check with the cell manufacturer if the cells are suitable for multi-cell packs.

In the past, single lithium-ion cells were only made available to authorized battery assembles. Today, imports are becoming readily available and often fall into the hands of the inexperienced. While most brand name cells are equipped with an internal cell disconnect that permanently opens the current path on high pressure, some brands do not provide this safeguard. Neither do many brands use a separator that is designed to shut down on high temperature. The internal safety features are omitted for cost reasons.

Please follow the following guidelines when charging and discharging lithium-ion cell(s) and packs. Failing to follow these rules could result in venting with flame, explosion, fire and personal injury.
WARNING when charging lithium-ion cells and packs

- Never connect cells in parallel and/or series that are not designed for that purpose.IBM 08K8199 Battery, IBM 08K8198 Battery, IBM 08K8197 Battery, IBM 92P1075 Battery A cell mismatch may cause overcharge and venting with flame.

- Never charge or discharge the battery without connecting a working protection circuit.IBM 08K8198 Battery Each cell must be monitored individually and the current disconnected if an anomaly occurs.

- Always attach a temperature sensor when charging and discharging the battery. The temperature sensor must disconnect the current on excess temperature.

- Only connect cells that are matched and have the identical state-of-charge.

- Pay special attention when using an unknown brand. Not all brands contain intrinsic safety features that protect the cell when stressed.

- During experiments, place the test battery into a well-ventilated fireproof container.

- Never leave the battery unattended while under charge or discharge.

- Do not charge a battery that has physical damage.

Household batteries

The serial and parallel connections of cells described above addresses rechargeable battery packs in which the cells are permanently welded together. The same rules apply to household batteries except that we are dealing here with single cells that are put into a battery holder and form a serial configuration. When using single cells, some basic guidelines must be observed:

- Keep the battery contacts clean. IBM 08K8197 Battery A four-cell configuration has eight contacts (cell to holder and holder to next cell). Each contact exhibits some resistance which, when added, can affect the overall battery performance.

- Never mix batteries. Replace all cells when weak. (Remember the 'weak link of a chain' and 'a battery is only as good as the weakest cell'.) Use the same cell type for the whole string.

- Do not recharge non-rechargeable batteries. Charging primary cells will generate hydrogen that can lead to an explosion.

- Observe the right polarity. A reversed cell will deduct rather than add the cell voltage to the string.

- Charging a secondary battery with a reversed polarity will cause the affected cell to develop an electrical short. IBM 08K8199 Battery, IBM 08K8198 Battery, IBM 08K8197 Battery, IBM 92P1075 BatteryIf left unattended, the damaged cell will heat up and create a fire hazard.

- Remove fully discharged batteries from the equipment. Old cells tend to leak and cause corrosion. Alkaline is less critical than carbon-zinc.

- Remove the batteries when the equipment is not used for a while to prevent corrosion.

- Do not store a box of cells in a way that can create an electrical short. A short cell will
heat up and create a fire hazard.IBM ThinkPad R40 Battery Place loose cells in small plastic bags for electrical insulation.

- Always keep batteries away from children.

- Primary batteries such as Alkaline can be disposed in regular trash. It is recommended, however, to bring the spent batteries to a depot for recycle or disposal.

Battery power supply design is the development of chemicals and the workers of scientific research, Hp laptop battery technical staff, knowledge and skills.

1. Battery Design Basis
• The design goals of battery and the basic principles of

Cell is the design of instruments and equipment to provide the best use of the performance of work or power outlet. Therefore, the design of the Laptop battery must first be used to meet the electrical requirements and optimize it with the best overall performance, to determine the battery electrode, electrolyte membrane, Shell and other parties parameters, and they are hand are made to specifications and indicators of battery or batteries.

• design of the battery requirements

Battery is designed to meet the object (or user equipment) made the request. Therefore, when designing the battery, the first to have a detailed understanding of the items on the performance indicators of the battery conditions and user requirements, generally include the following:

• the battery voltage;

• Battery operating current is the normal current and peak current;

• Battery working hours, including time to discharge continues,Hp laptop battery HP F4098A Battery, HP F4809A Battery, HP F4812A Battery, HP 319411-001 Battery, HP Presario 2100 Battery(compaq 2100 Battery), the use of the term or life cycle;

• Battery work environment, including hours of work in which the Dell Latitude D510 battery status and temperature;

• The maximum size of the battery.

Should also be taken into consideration: the source material; battery performance, HP F4809A Battery characteristics of the battery of the determinants of battery technology, economic indicators, environmental issues and other factors.

• performance assessment battery of key indicators

Battery performance in general, mainly the following aspects to evaluate.

(1) The capacity of the battery capacity is defined as a rejection of certain conditions, can be obtained from the battery power, which is currently on full time, generally expressed in Ah or mAh, this which directly affects the maximum operating current of the hp Pavilion dv4 battery and working hours.

(2) The discharge characteristics and internal resistance characteristics of battery discharge is granted the discharge of the battery in a system, the fineness of its operating voltage, the voltage level of the platform and the performance mainstream discharge, etc., which indicates that the battery with a capacity load. Battery internal resistance including the ohmic resistance and polarization resistance electrochemical discharge current large, the resistance of the flow characteristics are particularly evident.
(3) Operating temperature with electrical work environment and conditions require the use of batteries in a specific temperature range with good performance.

(4) The storage performance of the storage sony VGP-BPS5 battery for a while because of certain factors for changes in performance,Hp laptop battery HP F4098A Battery, HP F4809A Battery, HP F4812A Battery, HP 319411-001 Battery, HP Presario 2100 Battery(compaq 2100 Battery), causing the battery to discharge, leakage of electrolyte, the battery short-circuit and so on.

(5) life cycle (secondary battery) life cycle means the system of secondary batteries in accordance with a certain load and discharge its functions reduced to a certain level (for example,HP F4812A Battery the initial capacity of 60% ) when the number of cycles.

(6) The internal pressure and resistance performance overload (secondary battery) for Ni-Cd, Ni-MH battery and other sealed type secondary, high current for recharging the battery internal pressure can reach the balance and equilibrium pressure of the high and low resistance of the battery current level of overcharging to measure the performance of performance are all important indicators of good or bad, if the battery internal pressure reaches the equilibrium or balance, the pressure is too high, it will limit the devices battery voltage (such as explosions bullet proof) to open the battery caused by discouragement or neglect fluid, which leads rapidly to the failure of the battery. If the device fails, pressure limiting, there may cause cracking of the tank apple iBook G4 14 inch battery or an explosion.

2. Battery design the basic steps

Battery design staff in design tasks clearly and fully prepared, you can imagine.

User requirements depending on battery design ideas from the battery, there are two: Hp laptop battery HP F4098A Battery, HP F4809A Battery, HP F4812A Battery, HP 319411-001 Battery, HP Presario 2100 Battery(compaq 2100 Battery), one for electrical equipment and instruments, rated capacity of the power source, and another is just one factor given power supply form developed excellent battery performance specifications for new or special-shaped battery.

1 to determine the ability of design steps of the battery

• determine the number of combined organ cells Tenor battery voltage of single battery and current density.

• According to user requirements to determine the overall work of the battery voltage,HP Presario 2100 Battery current indicators of operating and other series of selected cells, the light of the series “Volt-Ampere curve “(derived from empirical data or experience) to determine the work voltage of single cell and current density.

• determine the number of batteries in a single cell.

= The number of total voltage single battery voltage / battery

• Calculation of battery capacity

• According to the requirements of course work and working time calculations of charge.

Nominal Capacity * = current operating hours

• determine the design capacity of

Design capacity = capacity * Design factor

A design factor is to ensure the reliability and lifetime of the whole of the battery, the general attitude 1.1-1.2