Yes, it will take slightly longer to charge, but it will last a bit more once charged.
yes
A Rechargeable Lithium Polymer 900mAh battery
The 900mAh battery will work fine - it just gives your phone an extended time between charges. I've replaced the original 700mAh battery in my phone for a 950mAh one - and get about 40% extra talk & standby times.
Yes , you can use the 900mah. The 900 will hold a charge a little longer than the 820.
depends on how well you want to treat your battery and what its rated for i would charge it at 0.9A
The charger with the 900ma output will charge the battery faster than the charger with a 500ma output. The phone with the 900mah battery will last longer between charges than that of the 500mah battery.
exploding battery?
the battery on your meter has to be replaced.
No the battery is built in but should last a long time.
no
Are you serious?
The computer only resets when the battery is removed. The alternator just charges the battery, so if the battery is left connected when the alternator is replaced, the computer should not reset.