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Interactive User Guide

Dear Mugen Power Battery User

We would like to take a moment and thank you for buying our high-quality Mugen Power Extended battery. We truly appreciate your business!

Charging Instructions and Battery Care

To fully enjoy the enhanced hi-power capabilities, You should go though some easy steps and prepare your phone for your new Mugen Power battery.

1) Put your battery to charge and charge for 8-12 hours.

For the first 4-5 charges, please charge the battery in the device for 8-12 hours using the stock power adapter and your device turned on. It is important for first 4-5 charges to charge the battery for 8-12 hours, even if Your phone is showing full charge. This is needed to rewrite the battery statistics information in your phone.

2) Use your phone normally until it reaches 10-15% charge

After each charge, please use the device as normal, until the device tells you the battery is low (10-15% charge). Put your phone on charge after the alert.

3) Repeat this process 4-5 times

After that you can recharge the battery whenever is suitable for You. We recommend to avoid full discharge at all times, as this reduces your battery's life-span. Put your smartphone battery on charge when it reaches 10-15% (usually when your phone notifies you about low charge level). Like this you will be able to increase the life of your battery to 900-1100 discharge cycles.  

Important: We recommend not to try to switch on your phone if you reached 0% charge. This harms the battery, exhausts it's resource and decreases it's life cycle. 

TIP: Your smartphone battery is undergoing a very unstable discharge schedule because it depends on your daily schedules that many vary day to day. It depends on environment temperature, what apps do you run, 3G usage, WiFi, GPS and many other factors. To prolong your smartphone’s battery life (Mugen Power extended battery or stock) you should calibrate it once in 3 months or after 40-50 partial cycles.
More battery tips on our blog.

Service and After-Sales

If you believe your item is not working correctly or if you are not happy with your item, please contact us as soon as possible to find a solution. We are customer orientated and easy to work with and we welcome you to contact us if there are any issues.


If you are happy with the product and services you've received from us, you can post a comment on your local forum or your blog and receive 5% of any sales coming from this link. IT'S EASY! Please visit to join our Affiliate Program and start earning commission today!

If you have any questions or would like to receive additional info on this program, please contact us on

For journalists, Youtube reviewers and bloggers
If you would like to receive our battery to test and review on your resource, please follow the steps, described here.

Mugen Power is Social!

We are very active on our social sites and are ready to answer any pre-sale or after-sale questions that you may have! We will be happy to see you among our fans!

Mugen Power on Twitter Mugen Power on Facebook Mugen Power on Google Plus Mugen Power on Habrahabr Mugen Power on VK Mugen Power on 4pda

Once again, THANK YOU for your order! We hope to see you again soon!

With best wishes,

Mugen Power Batteries

Address: eTrade Asia Ltd, 4210 Office Tower, Convention Plaza, 1 Harbour Road, Wanchai, HONG KONG

Tel: +852 2598 1700