Need Some Insights On External Battery Charger For BlackBerry

[viper_in_blood 4]

guys m using official tata bb 8530 but the battery backup is so bad ..it just lasts for at max 12-14 hrs ..after tht the phone dies down....i was thinking of external battery charger something like http://cgi.ebay.in/External-Battery-Charger-BlackBerry-8520-8530-Curve-/270803107134?pt=IN_Mobile_Accessories&hash=item3f0d1f7d3e from berrynext ..let me know if someone has been using this or is selling due to sale of his phon...

regards

viper