I have a Lumia 530 and I've never had any major battery problem until people nagged me to install Telegram. Now the battery only lasts until afternoon while I'm using an external battery already. Does anybody know where I can find a better battery? I saw some "gold" 2400 mAh battery on the internet but they look VERY suspicious to me. The original battery is 1430 mAh, so I don't know.