I've found another source for 1450mAh SCUDs which presently claims to have them in stock: http://www.enjoygadget.com/scud-37v-...es_p12494.html. The website is lousy and their English is worse, but they accept PayPal so it doesn't seem like a huge gamble. I've ordered one and I'll report back when it arrives.

Also, some observations on battery degradation in active use and the possible wisdom of replacing your batteries on an annual basis. I replaced my original Nokia 1320mAh battery with a 1420mAh Scud in early September last year, when the phone was about one year old. At that time, testing with bq27200 showed the outgoing Nokia battery at 1271mAh and the incoming Scud battery at 1471mAh. I decided back then that this was a worthwhile improvement, and that I would replace the Scud battery when capacity dropped below 1300mAh and an improvement of >= 10% might be anticipated from doing so.

Fast forward one year (in fact, a couple of weeks less than a year) and I'm still using the same N900 and the same Scud battery, but the battery life isn't what it was. I tested it again last week and got a figure of 1298mAh, so a capacity loss of ~12% over a year's usage. This is completely within expected parameters for Li-ion batteries, but I've lost most of the gains that were to be had from the extra capacity of the Scud.

It seems a bit wasteful to replace a battery on the strength of a 12% drop in performance, but an extra 200mAh made a noticeable difference before and would do so again, so I've ordered up a new Scud and will relegate the old one to my backup phone. This does make me wonder whether Li-ion batteries should simply be treated as consumables and replaced on an annual basis... thoughts?