Why do I need a battery?
The battery can keep your computer still working when the power is off， the high capacity battery can be used even longer.

How to order battery?
The best way to find the battery you need is searching by the original battery code， and compare the picture of the battery， check the interface

Use "Ctrl+F" to search the key words from the website
if you still can not make sure the battery， please contact us.

For the shipment， we will provide the tracking number and the shipping method.

Please take care your battery， the recharge cycle is based on how you use the battery， don't overcharge， don't keep the battery in the wet environment， and please don't put water on the battery. Thank you

This Laptop Battery can replace the following part numbers:
For Lenovo
42T4708 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?42T4709 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ??42T4710
42T471242T471442T4715
42T473142T473342T4735
42T473742T475342T4757
42T479942T480142T4803
51J049951J050057Y4185
57Y4186ASM 42T4703ASM 42T4711
ASM 42T4752ASM 42T4756ASM 42T4794
ASM 42T4796FRU 42T4702FRU 42T4710
FRU 42T4751FRU 42T4755FRU 42T4791
FRU 42T4793FRU 42T4795FRU 42T4797
FRU 42T4799 ? ? ? ? ? ? ? ? ? ? ? ?FRU 42T4801FRU 42T4803
FRU 42T4817FRU 42T4819

This Laptop Battery is also compatible with the following models:
For Lenovo
For?ThinkPad E40? ? ? ? ? ? ? ? ? ? ? ? ? ? ??For?ThinkPad E50? ? ? ? ? ? ? ? ? ? ? ? ? ?For?ThinkPad Edge 0578-47B
For ThinkPad Edge 14"For?ThinkPad Edge 14" 05787UJFor?ThinkPad Edge 14" 05787VJ
For ThinkPad Edge 14" 05787WJFor?ThinkPad Edge 14" 05787XJFor?ThinkPad Edge 14" 05787YJ
For ThinkPad Edge 15"For?ThinkPad L410For?ThinkPad L412
For ThinkPad L420For?ThinkPad L421For?ThinkPad L510
For ThinkPad L512For?ThinkPad L520For?ThinkPad SL410
For ThinkPad SL410 2842For?ThinkPad SL410 2874For?ThinkPad SL410k 2842
For ThinkPad SL510For?ThinkPad SL510 2847For?ThinkPad SL510 2875
For ThinkPad T410For?ThinkPad T410iFor?ThinkPad T420
For ThinkPad T510For?ThinkPad T510iFor?ThinkPad T520
For ThinkPad T520iFor?ThinkPad W510For?ThinkPad W520
? ? ? ? ??








About us
We selling all of our products in strict compliance with CE， FCC and UL quality regulations. Through service， now our products are used worldwide in such countries and regions as Europe， America， Japan， Hong Kong， and Middle East. High quality products and comprehensive services have resulted in a high rate of customer satisfaction which has helped us to earn a great reputation in this line of business.
Our vision:
Yunda to be provide the highest quality products and experitise to its clients and ensuring that our extensive network of partners all benefit through their association with us.
1.Quality customer service.
2. Networks of long term relationships based on mutual benefits.
3.Innovative and creative solutions to meet partners needs.
4.Cost effective methods of enhancing the business