I couldn't find any extended batteries for the TP2, so I emailed the first two companies that came to mind that manufacture these type of batteries, Seido and Mugen. Got an email within an hour from Mugen (still nothing from Seido) linking me two batteries they make for the TP2, a 3000 and 4500mah. Now, obviously these increase the size and weight but I don't really care about that aspect. I care more about their performance, where the 4500mah ought to last three times as long as the stock 1500mah. Does anyone have one of these yet, how does it work? They note it is for the GSM model, but I'd think it wouldn't make a difference if it was used on a CDMA model, would it? I'd definately be going for the bigger 4500mah one, but considering the price tag ($100) I'd like to hear some feedback first. Much thanks.
http://www.mugenpowerbatteries.info/epages/es109514.sf/sec_YCh5NtStOY/?ObjectPath=/Shops/es109514_es120302495377/Products/HLI-T7373ML
http://www.mugenpowerbatteries.info/epages/es109514.sf/sec_YCh5NtStOY/?ObjectPath=/Shops/es109514_es120302495377/Products/HLI-T7373XL