High capacity original battery 42T4889 for Lenovo ThinkPad X100e 57Y4558 ASM 42T4784 FRU 42T4781 42T4783 42T4789 laptop battery

What is the specification for X100E battery ?

If you can't find the model you need, kindly contact us (Trademanager: cn1518095895igpc / Skype: johnny188_3)

 What does the X100E Laptop battery looks like?

Shenzhen Yourparts Technology is a high-tech enterprise which is engaged in researching, manufacturing and marketing laptop/notebook batteries. Our rechargeable Li-ion batteries include brand new original laptop batteries and 100% compatible OEM replacement laptop batteries of all brand laptops, such as Acer, Apple, Asus, HP, DELL, Fujitsu, Gateway, Uniwilu, Benq, IBM, Lenovo, Clevo, Nec, Sony, Samsung, Toshiba, and so on. Our products have been exported to clients from all over the world with high quality and competitive prices.

As a powerful laptop battery wholesale merchant, we have professional R&D, sales and service teams and high-class manufacturing bases and testing equipment. All key members of Yourparts Technology originated from professional laptop battery pack manufacturing plants, with years of working experience in this specific industrial circle. Our efficient and capable teams work together to provide high-quality products and solicitous services for our customers. Our strict quality control system has passed ISO9001:2008 certification. Focusing on technology innovation, product research, production management and quality control, we have established a scientific and complete company management system.

Yourparts Technology keeps paying attention to the end consumer market and following the requirements of end users. Since our establishment in 2009, Yourparts Techology has been investing 30 percent of our sales value in innovation and product research annually. We have also built an advanced R&D center and laboratories. All these investments make us easier to produce high-quality and cost-effective products to meet the market requirements.

Can I use Paypal?

For sample order like 1-2pcs, we can accept Paypal, but for the next orders in
the future, we only accept Western Union and T/T.

Is your laptop battery real original and how about the quality?

Of course our original laptop batteries are brand new 100% genuine original 

which are produced by original laptop factories like HP/DELL/ACER/APPLE/SONY etc

with Grade A original materials such as branded cells made by Sony/Samsung/SANYO/Panasonic/LG etc.

It is the same with the original one in your laptop, and the same with the ones in outlets.

We can send pictures for your reference.

What's the difference between OEM and original laptop battery?

A: original laptop batteries are produced by original factory with original
Grade A cell and materials, and replacement laptop batteries are produced
by our own factory with chinese brand Grade A cell and materials.

B: original laptop batteries have brand logo on the label, and the
replacement laptop batteries label is neutral without logo.

C: the cost of original laptop batteries is higher than replacement laptop batteries.

D: the life time of original laptop batteries is much longer than replacement
laptop batteries.

We can send the pictures of replacement and original laptop batteries for
your reference.

What's your warranty policy ?

All our products are 12months warranty.
If the man-made damage is found during the guarantee time, we can repair
for you and charge the maintain costs generated by this.
If the batteries/adapters have any problems under normal working condition,
we will repair and replace good ones to you. You will only pay the shipping
cost to return the defective goods to us and we will take charge the cost to
send new ones to you.

What's your "Sample Free" policy?

We will send the sample to you after you pay the sample cost. If you are
satisfied with our sample, you can keep it and we will subtract the sample
cost in your new order. If you are not satisfied with our sample, you can
reject it and send back to us. We will return you the sample cost.

How to maximize discharge time and extend battery life:

1> Lower the brightness on the display.
2> Minimize background processes.
3> Don't use the CD/DVD drive.
4> Disable your wireless antenna when not in use.
5> Check the Power Management settings are set to "Max original battery".
6> Remove the battery from the notebook PC when it is not being used or charged for a long period.
7> Purchase another battery to extend the overall operating time on battery.
8> Store the battery in a cool dry location.

How to take the precautions when using a original battery?

1> Do not modify or disassemble it.
2> Do not incinerate or expose to excessive heat, which may result in an exposure.
3> Do not expose boo to water or other moist/wet substances.
4> Avoid piercing, hitting, crushing or any abuse use of the battery.
5> Do not forget to take away your battery from the device if you will not use it for a long time.
6> Avoid short circuit of the terminals by keeping your original battery pack away from metal objects such as necklaces or hairpins.

Any question, welcome to contact with us anytime, YourParts Team is always here support you.

Excellent customer service begin here :

Key Account Executive: Mr. Johnny

E-mail: johnny(at)

Tel: 86-755-82818099

Fax: 86-755-83320196 

Mob. / Whats'app: +8618588452827

Skype: johnny188_3

Trademanaer: cn1518095895igpc