Yeah I saw that thread on palmpreforum. I actually sideloaded the battery app this morning and it has given me conflicting information on my OEM battery, that it is 1186 mAh, 1183 mAh, 1178mAh, then back up to 1183 mAh. 

Actually, you really arent supposed to do this with lithium-ion batteries.  You are supposed to charge them early and often.

Check this thread:
http://www.palmpreforum.org/index.php?topic=2250.0

There is a sticky at the top of the Pre Discussion page about charging a Li-ion battery.  Here's the actual detail:

Like many rechargeable batteries, lithium-ion batteries should be charged early and often. However, if they are not used for a long time, they should be brought to a charge level of around 40%–60%
Lithium-ion batteries should not be frequently fully discharged and recharged ("deep-cycled"), but this may be necessary after about every 30th recharge to recalibrate any electronic charge monitor (e.g. a battery meter). This allows the monitoring electronics to more accurately estimate battery charge.[27] This has nothing to do with the memory effect.
Li-ion batteries should never be depleted to below their minimum voltage, 2.4 V to 3.0 V per cell.
Li-ion batteries should be kept cool. Ideally they are stored in a refrigerator. Aging will take its toll much faster at high temperatures. The high temperatures found in cars cause lithium-ion batteries to degrade rapidly.
Li-ion batteries should not be frozen [50] (most lithium-ion battery electrolytes freeze at approximately −40 °C; however, this is much colder than the lowest temperature reached by household freezers).
Li-ion batteries should be bought only when needed, because the aging process begins as soon as the battery is manufactured.[27]
When using a notebook computer running from fixed line power over extended periods, consider removing the battery[51] and storing it in a cool place so that it is not affected by the heat produced by the computer.
 

AKA discharging and recharging them will damage them. Keep it charged up 100% as often as you can. They do NOT suffer from memory effects. Research before you lsiten to these people about how to "train"your battery .Their is no way to "train" the battery becasue its programed to do one thing. Hold a charge. Just keep it charged follow the other options to keep battery usage down and you will be fine. Till the 1500 mah battery or larger comes out you will just have to deal with it. PDA phones suck ALOT of power so get used to it.

The only benefit to discharging and recharging is to keep the accuracy of the battery meter, it doenst do anything for the battery life or charge, in fact it can make it worse.  I would rather have the battery meter off a bit and get better battery life.

I never intentionally drain my battery.

i am looking for a slim extended battery..i have two options Seidio  and the Amzer...can anyone suggest me that which battery is best

palm pre skins