Posts Tagged ‘charging’

How to charge your New spare battery

July 5th, 2010

laptop-battery-charging

When charging the laptop battery for the first time, the device may indicate that charging is complete after just 10 minutes or 15. This is a normal phenomenon with rechargeable batteries. Simply remove the battery from the computer and repeat the charging procedure.

Otherwise, can significantly reduce battery life (this does not apply to Li-ion which do not require conditioning). To download, simply run the device under battery power until it turns off or until it receives a low laptop battery warning. Then recharge the battery as described in the manual.

If you Dell inspiron 1420 battery will not be in use for a month or more, it is recommended that the device is removed and stored in a cool, dry and clean.

It is normal for the Inspiron E1505 battery to become warm during charging and discharging.

A charged battery at the end will lose its charge if unused. Therefore, the battery4.us suggest that it may be necessary to recharge the battery after a storage period.

The milliamp hour (mAh) rating of the laptop battery replacement tend to be higher than your original Pavilion DV2000 battery. A higher mAh rating is indicative of a longer-term capacity higher () battery and will not cause any incompatibilities. A laptop battery in most cases, outperform the original by 30% to 50%.

Battery life depends on real-time energy demand by the team. For laptops, use the monitor, hard drive and other peripherals as a result an additional drain on the battery, effectively reducing the Inspiron 6400 battery run time. The total runtime of the battery is also heavily dependent on the design of equipment. To ensure maximum performance of the notebook battery, optimize the management functions of power equipment. Check your computer manual for further instructions.

Hopes that help you.

Comments Off

Posted in knowledge

Tags:

Battery Plugged in not charging and not detected solution

May 28th, 2010

I have a Dell Vostro 1510 laptop, and when i have the battery charger plugged in, the battery icon says “10% available (plugged in, not charging)”, and if i pull out the cord, the laptop shuts down straight away. Can this be fixed, and if so, how? I bought this laptop new around 6 months ago. The detail info below:

plugged-in-not-charging

The Battery didn’t charge or detect being plugged in also caused by four reasons:

  • 1. The Vostro 1510 laptop battery failed
  • 2. The Adapter failed (can not charge the battery)
  • 3. The motherboard charging electric circuit failed (many caused by short damage). You can view more info here: Dell Motherboard Problem
  • 4. The laptop bios is too old to recognize the battery

After I checked my battery and adapter and confirm they are good. Then I try to repair it by myself. My Latitude E6400 battery was fixed by myself.

The first solution :I search in the google: Repairman from another site suggested that while the computer is on and plugged in, to unplug the adapter and then plug it back in again. To check the computer can started charging.

So I remove the laptop battery from the laptop and left the AC cord connected, booting it up on the power cord alone until I was able to boot into Windows 7, at which point I then put the laptop battery back into the computer while it was still on. This worked and while a tad unsafe for most people, I wouldn’t recommend you use this idea unless you absolutely had to, that is, if there was no other choice.

The Second Solution: You can download the newest BIOS from dell.com and then flash the bios. But I do not want to update Bios, So I use another way to make the Power manager system to recognize my latitude E6500 battery. :)

I open up my laptop Device Manager (usually a right click on your Computer/My Computer) and remove all Dell inspiron 6400 battery related devices from the Device Manager. Then after you’ve done that, right click again and select “Scan for Changes”, which should reinstall the proper services and allow for your laptop to charge again. See the more info in the image below.

remove-battery

If this also can not solve the problem, I suggest you send the laptop to Dell to repair the Laptop motherboard.

Comments Off

Posted in knowledge

Tags:

The charging of lithium-ion batteries C

March 26th, 2010

Despite all these preventive measures deep discharges always occur again. Therefore, advanced battery analyzers (Cadex Series 7000) with a “wake” function (boost), ruling that delivers a small charge current to activate the safety circuit when needed and provide the deep discharged cells again with energy. Followed by a full charge and an analysis of the Dell Inspiron 6400 Battery.

If the cell has remained for several days at a voltage of 1.5V/Zelle, but a charge should be avoided. Inside the cells may have been built up by some copper electrical connections that can lead to a partial or general electrical short circuit. The cell becomes unstable. The charging of such Dell Inspiron 640m Battery cells leads to severe overheating and the safety can not be guaranteed.

Battery experts agree that the loading of lithium-ion batteries are lighter and simpler than nickel-based batteries. Aside from the keeping of smaller voltage tolerances, the charging circuit with fewer variables to be considered to survive. Determining the full charge with a voltage limit and the monitoring of current saturation, which occurs for a full charge, is simpler than the analysis of multiple complex data as it produces nickel-metal hydride batteries. The charging currents are less critical and can vary. Only a small current still allows a clean definition of the full charge. The Dell Inspiron E1505 Battery simply requires a longer charging. The absence of the last brief charge, and the suspended load also helps to simplify the charger. Best of all is that there is no memory effect, but that actually represents only the aging of a difficulty.

The loading procedure of lithium-ion polymer is similar to that of lithium-ion. These Dell Inspiron 1520 Battery use a gel-Elekrtolyt to improve conductivity. In most cases, use lithium-ion and lithium-ion polymer battery chargers the same.

Measuring the state of charge based on the terminal voltage

The open circuit voltage can be used to estimate the state of charge of lithium, alkaline and lead batteries.

Unfortunately, this method is not applicable for nickel batteries.

A lithium-ion Dell inspiron 1545 battery cell, for example a no-load voltage of 3.8 V, there is a charge of about 50%. It should be noted that the use of the open circuit voltage to determine the state of charge is inaccurate, because the cells of different manufacturers have a slightly different voltage profile. This is because the chemical composition of the electrodes and the electrolyte from the manufacturers are different. The temperature also affects the battery voltage. The higher the temperature, the lower the voltage.

Comments Off

Posted in battery

Tags:

The temperature and battery charging

March 1st, 2010

Charging at high and low temperatures

Rechargeable laptop battery operate in a reasonably wide temperature range. However, this does not automatically allow a charge in the same temperature range. While the use of batteries in hot or cold environment can not be avoided, the users, the conditions during the load somewhat under control. The charge should be strictly carried out at moderate temperatures.

In general, older battery technologies, such as Nickel-cadmium, tolerant loading at extreme temperatures. Nickel-cadmium Apple A1045 Apple A1061 batteries can be recharged with a quick charge within approximately 1 hours. Such a fast charging should be done within the temperature range from 5 ° to 45 ° C. An even narrower temperature range from 10 ° to 25 ° C, however, yields better results.

Charging below 5 ° C caused a reduced Ladekoeffizienten of 0.1 C (one tenth of the capacity). This is in the area where oxygen and hydrogen inside the cell can be reduced. Due to the declining settings at lower temperatures, leading to a too fast charging excessive cell pressure, which can lead to a Zellenleck. Such a Apple A1148 Apple A1175 battery can be charged under these conditions fully before.

Industrial Apple iBook G4 12 inch Battery that require rapid charging at low temperatures, include a thermal circuit to keep the battery in a temperature range to be allowed. As soon as the charging temperature is lower than is produced during the loading process gas, which in turn leads to a warming, and thus improve the loading conditions. The ideal charger automatically adjusts itself so that there is a balance between gas and charging.

Nickel-metal hydrides are less tolerant than nickel-cadmium in terms of the charge at low or high temperatures. Nickel-metal-hydride can not load quickly at temperatures below 10 ° C, nor can they load slowly below 0 ° C. Some chargers are designed so that they Ladekoeffizienten and the ambient temperature change. Price considerations are not allowed to provide Apple PowerBook G4 12 inch Battery battery chargers for consumer electronics with temperature sensors.

At higher temperatures, the charge acceptance of nickel-based Apple PowerBook G4 Battery is drastically reduced. A battery that can hold at room temperature, a medium capacity of 100%, starts at 45 ° C ambient temperature, only 70%, and even only 45% at a temperature of 60 ° C. This highlights the poor performance of some car chargers in the summer!

Comments Off

Posted in battery

Tags: