Part No: HLI-BL5JSL
Product Reference: 45429
Extended battery increases your Nokia Lumia 520 / 521's capacity to 1600mAh
With the original Nokia Lumia 520 / 521 battery capacity rated at 1430mAh, this Mugen Extended Battery brings your Nokia Lumia up to 1600mAh, adding 170mAh so that your Lumia 520 / 521 will last 12% longer, more than enough to give you that extra time you need to make that important phone call or text.
Fits with original Nokia back cover
Unlike other extended batteries, this one fits with your original Nokia Lumia back cover. This is great as you won't have to buy any more cases for your phone, all of your existing ones will still fit.
All Mugen Power batteries undergo vigorous QA procedure, resulting in Mugen Power achieving the lowest return rate in the industry. All Mugen Power batteries are CE approved.
Guaranteed for one year
The cells used for these Mugen batteries are of such high quality, they are guaranteed for one year. Something other manufacturers don't do.