How to Charge our Laptop Batteries

Many people have experience on charging our laptop batteries. When did you charge your laptop battery? How long did you charge your laptop?

Charging a laptop battery is very easy for most peole. All you need to do is to install the rechargable battey to your laptop and plug the laptop adapter into a wall socket. As we all known, lithium-ion batteries have a rapid-charging option. This option is available both on a custom tab inside the Power Options dialog box or through special battery software that came with your laptop. If  necessary, you can use the "rapid-charging option." to save your time. Otherwise, if you want a nice, full, slow charge for your laptop’s battery, you'd better learn a lot from the following:

1. You can recharge your laptop’s batteries whether it is fully drained or not. Especially if your laptop is using a lithium-ion battery, it makes no difference.
2. Not consatnly to unplug the adaper that in the wall socket.
3. You should fully discharge and charge your laptop battery when put it into first use.
4.  Remember not to over discharge or charge your laptop batteries.
5. You should know that your  battery continues to  be charged even when the laptop is turned off.
6. It doesn’t take longer to recharge the battery if you use the laptop while recharging.

If you also want to know how to take better care of your laptop battery, please refer the link:
http://127angel.blog.com/2014/04/01/3-simple-ways-to-take-better-care-of-your-laptop-battery/
http://127angel.blog.com/2014/04/07/knowledge-of-charging-laptop-battery/
 
 Some pictures of laptop batteries:

Laptop Batteries for DELL MR90Y, DELL 0MF69 , Inspiron 15R-5537

DELL MR90Y laptop batteries are in stock and on sale in http://www.laptop-battery.org.uk. When you are going to purchase a replacement battery for your DELL laptop, it's a good suggestion that you should know the following knowledge of  DELL MR90Y, DELL 0MF69 , Inspiron 15R-5537 laptop batteries.
Color: As you can see in the left pictures, Dell MR90Y laptop batteries are black.

 Brand: DELL Original or OEM ( Replacement)

 Type: all Brand New

Capacity: 5800 mAh, 2700mAh 
Voltage: 11.1 V, 14.8V (They are incompatible.So you should make certain  that whether your old DELL laptop battery is 11.1V or 14.8V.)
Warranty: 9 months. ( You can return it back to exchange a new one if there is some quality problem about the battery)
Chemical: Li-ion

DELL MR90Y laptop batteries are also compatible with the models as below:
DELL 0MF69 battery , Ins14RD-2628 laptop battery , DELL Latitude 3540, 0MF69 laptop battery ,  VR7HM laptop battery ,

Advice on how to keep your DELL MR90Y laptop batteries working longer

1. Use the original  DELL MR90Y adapter to charge your Dell Laptop.
2. Follow correct maintenance for your laptop battery when not in use.
3. Not exposure your DELL MR90Y batteries to extreme hot or cold environment.
4. Fully discharge and charge your DELL MR90Y, DELL 0MF69 , Inspiron 15R-5537 laptop batteries when use them in first time .
5. Remove your DELL MR90Y laptop batteries from your laptop and store it in  dry conditions if you don't need it for a long period..

Tips on how to take better care of your laptop battery

Reprinted from http://127angel.blog.com/2014/04/01/3-simple-ways-to-take-better-care-of-your-laptop-battery/
Nowadays, more and more people tend to spend more time on laptop than with your family members or friends. So there is no reason that you shouldn’t take a better care of them. Here are some advices or tips to make sure that your gadget’s laptop battery has a long and happy life.(Take HP hstnn-ubow Laptop Battery for example.)

1. Don’t addicted into your Laptop.

When you install your  HP hstnn-ubow Laptop Battery in HP Laptop for the first time, you should ensure that it has been  fully charged. Then you ought to calibrate it. But after that, you should  keep it between 40 and 80 percent capacity. HP hstnn-ubow Laptop Battery customer care says you should do this to “keep the electrons in it moving occasionally.”

We all  know that is easier said than done. Just remember to pay attention to your battery percentage which is usually shown in a corner of your laptop screen throughout the day. If you leave your HP  laptop at home for a long time, it’s better to  shut it down, close it and keep it unplugged on a desk, instead of a couch. Remember this.

2.Fully discharge and charge your HP hstnn-ubow Laptop Battery when you use it at first time.

You should also fully charge and discharge your HP hstnn-ubow Laptop Battery at least once a month. Set a reminder on your phone or something. But remember not to over discharge or over charge your HP hstnn-ubow Laptop Battery.

A typical charge and discharge cycle is as follow:

 Install your newly purchased HP hstnn-ubow Laptop battery into your laptop.
 Disconnect the HP hstnn-ubow AC adapter and use your laptop until it itself shuts down. In this situation, the battery is fully discharged.
 Connect the AC adapter and your HP hstnn-ubow laptop battery should start charging.
 Charge until the battery is full.
3.Keep your HP hstnn-ubow laptop battery staying cool.

HP hstnn-ubow Laptops are made with lithium-based batteries, which should be stored in temperatures between 50 and 95 degrees Fahrenheit. You might not always be able to keep tabs on that sweet spot, so to make things a bit simpler, room temperature is fine. If the system is exposed to extreme cold or hot temperatures, allow it to warm up/cool down before use and before charging.

ps: Brief  introduction of HP hstnn-ubow laptop battery

This HP hstnn-ubow replacement battery pack is a 8800mAh, 11.1V, rechargeable, removable as well as Li-ion battery.Its color is black and brand new in www.latop-battery.org.uk.

Note:  (1). Higer capacity HP hstnn-ubow replacement battery can work your laptop longer than the lower ones, but it is bigger and heavier accordingly.  (2). Li-ion HP hstnn-ubow laptop battery performance better and more environmentally friendly.

For further information, please refer to  http://127angel.blog.com/2014/04/01/3-simple-ways-to-take-better-care-of-your-laptop-battery/

LENOVO L12L4A02 Laptop Battery, L12L4A02 batteries

• Availability: In Stock and on sale
• Type:  LENOVO Original, Brand new
• Color: Black
• Chemical: Li-ion
• Capacity: 2900mAh
• Voltage: 14.8V
• Warranty:9 months
•  Formert price: £53.48     
• Special  price: £40.66

 Note:   £40.66 for  1-2 pcs
               £38.63 for 3-9 pcs, save 5%
               £36.59  for 10-19 pcs, save 8%
               £34.56 for >= 19pcs, save 15%
Purchasing from us is safe and fast!
Brand new and High quality cells!
Testing each battery carefully before sending to customres! 
Shipping to most countries!
More than 5 experience on online sale!

Q&A
1.Which other model does LENOVO L12L4A02 Laptop Battery suit for?

LENOVO L12L4A02 Laptop Battery is also compatible with  LENOVO G505s batteries , LENOVO IdeaPad G405s Touch battery , L12S4A02 battery , LENOVO G400s , G505s battery , IdeaPad S410p batteries

2.When will yousend my LENOVO L12L4A02 Laptop Battery after payment? 
We  will send it in 48 hours. Any problems, we will contact you by an email. Don't worry about this question.

3Is this  LENOVO L12L4A02 Laptop Battery  has any guarantee period? If yes, how long is it?
You could have this device returned within 7 days if there is any quality problem or wrongly deliverer. And you could have it exchanged within 30 days if the same case.  Any questions, you can feel free to contact us.

How to remove battery from laptop?

There are many different brands of Laptops, such as Dell, HP, Toshiba, Acer, ASUS, and so on. However, they usually share the same similarities when removing the external battery.
At the following situations, we should remove the battery from our laptop and store it in a drying environment. 

1.If our laptop is seldomly used or it is going to be off for a long period (more than half a month).  
2.You keep our laptop plugged in to a electrical outlet or in a docking station by adapter continuously for half a month or more.

Why should we remove the battery from our laptop? Because laptop batteries will age quickly when they're fully charged and stay hot for long periods of time. High heat and laptop overheating are bad for laptop's hardware parts, including the battery.What's worse,it even can make our latop explode. Some intensive usage can drive up the amount of heat our laptop produces. If we often use our laptop for high-powered tasks like game playing and multimedia editing, remember to remove the battery from our laptop to protect it from the heat.   

 To remove the battery slide this switch to the opposite side and hold it in that position until the battery is removed. When doing this with some laptops the battery will pop out and allow you to grab onto it. Others will release the latch and require you to grab onto the battery usually with the tips of your fingers and pull it out.

Review of DELL MR90Y Laptop Battery

The DELL Inspiron 15-3521 does not achieve the best runtimes with its MR90Y 65 Wh lithium ion battery despite the low-voltage hardware (good ultrabook 6-8 hours in the WLAN test). Four hours in this practical setting are not acceptable for the 15 incher. Despite the fact that they have less capacity and 35 watts CPUs, the competitors IdeaPad Z580 (L11L6Y01 48Wh Battery, 4:34 hours) and Aspire V3-571G (48 Wh, 3:16 hours) run longer (Z580) or compensate this disadvantage with more computing power (V3-571G).
 
It is standard practice to test the battery runtime when watching DVDs. With 2:04 hours this test ends even faster than the WLAN test. The second measurement, which played the movie from a hard-drive, ended at 2:14 hours.
Given these short runtimes, the charge time of 3:45 hours is far too high (charging when device turned on, idle). This cannot be caused by excessive demands on the power supply which supplies 90 watts.
 
Case  
Why always show off with aluminum, when a little bit less would have sufficed? In the last years cases became more and more high-grade. The OEMs know how to punch, brush and anodize aluminum. Through mass-production this procedure was made available for the lower price-ranges. Nevertheless, it makes a difference in purchasing if plastic or a aluminum-plastic compound is ordered. When, in addition, high-quality hardware shall be offered at a low price point, there is nothing else to do for the manufacturer but to choose a low priced chassis. The DELL Inspiron 15 is equipped with a DVD-RW drive and a spacious hard drive to store your music, movies and pictures.

How to Store laptop Batteries

The recommended storage temperature for most laptop batteries is 15°C (59°F); the extreme allowable temperature is –40°C to 50°C (–40°C to 122°F) for most chemistries. While lead acid must always be kept at full charge during storage, nickel- and lithium-based chemistries should be stored at around a 40 percent state-of-charge (SoC). This level minimizes age-related capacity loss while keeping the battery in operating condition and allowing self-discharge.

Finding the 40 percent SoC level is difficult because the open circuit voltage (OCV) of batteries does not lend itself well to state-of-charge estimations. For lack of better methods, voltage is nevertheless used as a rough fuel gauge indicator. The SoC of Li-ion is roughly 50 percent at 3.80V/cell and 40 percent at 3.75V/cell. Allow Li-ion to rest 90 minutes after charge or discharge before taking the voltage reading to get equilibrium.

SoC on nickel-based batteries is especially difficult to measure. A flat discharge curve, agitation after charge and discharge, and voltage change on temperature contribute to the fluctuations. Since no other estimation tool exists that is practical, and the charge level for storage is not all too critical for this chemistry, simply apply some charge if the battery is empty, and then make sure that the battery is kept in a cool and dry storage.

Storage will always cause batteries to age. Low temperature and partial SoC only slow the effect. Table 1 illustrates the recoverable capacity of lithium- and nickel-based batteries at various temperatures and charge levels over one year. The recovered capacity is defined as the available battery capacity after storage with a full charge.

You can store a sealed lead acid battery for up to two years. Since all batteries gradually self-discharge over time, it is important to check the voltage and/or specific gravity, and then apply a charge when the battery falls to 70 percent state-of-charge. This is typically the case at 2.07V/cell or 12.42V for a 12V pack. (The specific gravity at 70 percent charge is roughly 1.218.) Some lead acid batteries may have different readings and it is best to check the manufacturer’s instruction manual. Low charge induces sulfation, an oxidation layer on the negative plate that inhibits current flow. Topping charge and/or cycling may restore some of the capacity losses in the early stages of sulfation.