New Hi-capacity Dell Inspiron Mini 9 battery for Dell 910 MIni 9/9N (all 8.9" series)

Specification

Chemistry : Li-ion
Rating : 64WH, 14.8V
Color : Black

Features

This Dell Mini 9 battery works with laptop Dell inspiron Mini 9 (all 8.9" series), Dell inspiron Mini 9N (all 8.9" series), Dell inspiron 910 (all 8.9" series) ; and compatible with battery codes 312-0831, W953G, D044H.

Dell Inspiron Mini 9 battery tips
All of us want to prolong our dell laptop battery's life. How to prolong the battery's life? here is some brief guide to extend your li-ion battery for Dell Inspiron Mini 9 & 9N Inspiron 910 laptop battery's life:
Your new Dell Inspiron Mini 9 laptop battery (all 8.9" series) comes in a discharged condition and must be charged before use (refer to your computer manual for charging instructions).
When charging Dell Inspiron Mini 9 battery for the first time your computer may indicate that charging is complete after just 10 or 15 minutes. This is a normal phenomenon with rechargeable batteries. Simply remove the battery from the computer and repeat the charging procedure.
If laptop battery will not be in use for a month or longer, it is recommended that it be removed from the device and stored in a cool, dry, clean place.
Lithium-ion Battery prefers a partial rather than a full discharge, frequent full discharges should be avoided when possible.
Do not use higher than its threshold voltage to charge the battery for Dell Inspiron Mini 9 Inspiron 910 laptop ,as it would become unsafe, even may cause an explosion.
Purchase spare li-ion Inspiron Mini 9 batteries for later use if your battery series get weak over times.

From: http://www.all-batteries.co.uk/notebook-batteries/dell-inspiron-mini-9.htm