A bulging back door is major "junk in the trunk" and detracts aesthetically from the look imho. The 2000mAh from Hong Kong that fits the stock door just flat out makes me nervous, even tho it's been reported to be fine. It could be a ticking time bomb. I'll take a pass. I find the regular stock oem as shipped works usually all day and I have several extra chargers in key locations if I need a boost. The 1750mAh from seidio sounds like a way to puny upgrade. My $.02
