[Tilt, TyTN II, MDA Vario III Accessories] cproaudio:
Well I did a few minutes of search and came up with this list. Im sure this is only a fraction of whats out there. For ebay, goto the seller's site and seach for kaiser battery or tilt battery. I didnt put the indiviual item because it'll get lost b/c ebay dont keep the items forever. You're welcome to add to the list but just follow the same format like below. Some are the same seller but using different name.

capacity in mah

site address, any notes can be added afterwards. add price if you want.

Unknown capacity in OEM size

none

1000mah

New http://myworld.ebay.com/westongue/ This seller has only 1 as of 12-12-07 Link below

http://cgi.ebay.com/Standard-Li-Bat...4445057QQihZ005QQcategoryZ15034QQcmdZViewItem

new http://www.wirelessground.com/tiltbattery.html

1300mah

http://myworld.ebay.com/lee262online/

http://myworld.ebay.com/ishop-express/

http://myworld.ebay.com/lifestyle0806/

http://myworld.ebay.com/iphonecity/

http://myworld.ebay.com/otakupark/

http://myworld.ebay.com/nv_gear/

http://www.talkietech.com/atti89htckat2.html

new http://myworld.ebay.com/igonemobile/

new http://myworld.ebay.com/davidb8699/

new http://myworld.ebay.com/imode_npower/

new http://myworld.ebay.com/360wireless/

new http://myworld.ebay.com/ibizmobile/

1350mah OEM capacity

http://myworld.ebay.com/battery_centre/

http://myworld.ebay.com/battery_collection/

http://myworld.ebay.com/oemcell/ DynaPack OEM Battery

http://myworld.ebay.com/nakedcellphone/ DynaPack OEM Battery

http://myworld.ebay.com/otakupark/

http://myworld.ebay.com/lifestyle0806/

http://www.boxwave.com/products/stdcapacitybattery/standard-capacity-battery-at_t-tilt_2906.htm

http://www.batteryupgrade.com/products.php?categorieId=93442175

new http://store.mobilitytoday.com/content/accessories/8-37.htm

new http://www.wirelessground.com/tiltstandbatt.html

Batteries below are extended capacity in OEM size that works with original back door

1500mah

http://myworld.ebay.com/obo_hk/

http://www.mugenpowerbatterijen.nl/

http://www.simoncells.com/4177-cellular-item.html

1600mah

http://myworld.ebay.com/battery_centre/

http://myworld.ebay.com/khb_tx/ Seidio battery

http://myworld.ebay.com/cellular-link/

http://myworld.ebay.com/likwaiw/

http://www.batteryupgrade.com/produ...d=17769546&searchphrase=HTC%20P4550%20battery

new http://myworld.ebay.com/battery_collection/

new http://store.mobilitytoday.com/content/accessories/8-37.htm

1650mah

http://myworld.ebay.com/etimeuk/

Batteries below are extended size and require new bulkier back door

Unknown capacity in extended size

none

2400mah

http://www.aftermarketcellular.com/ic/HTC8925XTDB.html

new http://www.1800mobiles.com/htc-tilt-battery-extended.html

2700mah

http://www.boxwave.com/products/hig...-capacity-extended-battery-at_t-tilt_2906.htm

2800mah

http://myworld.ebay.com/battery_centre/

http://myworld.ebay.com/ishophk2005/

http://myworld.ebay.com/in-t/

http://myworld.ebay.com/likwaiw/

http://myworld.ebay.com/lee262onlineau/

http://myworld.ebay.com/otakupark/

http://myworld.ebay.com/ckt824hk/

http://myworld.ebay.com/lifestyle0806/ last only as long as the OEM 1350mah

http://www.talkietech.com/htcat89ti24e.html

http://www.thepocketsolution.com/PSI-42624.html

new http://myworld.ebay.com/igonemobile/ advertised as 2800mah but randomtask16 reported as 2600mah

new http://myworld.ebay.com/davidb8699/

new http://myworld.ebay.com/360wireless/

new http://myworld.ebay.com/iphonecity/

new http://myworld.ebay.com/ibizmobile/

new http://myworld.ebay.com/battery_collection/

2900mah

http://myworld.ebay.com/etimeuk/ looks to have the same door as the 3000mah battery

3000mah

http://4ustuff.com/info.php?itno=2277 wholesale only

http://www.mugenpowerbatterijen.nl/

new http://myworld.ebay.com/nakedcellphone/ Mugen

new http://www.wirelessground.com/tiltsuperbatt.html

Edit: New additions.