This is a brand new PA3821U-1BRS battery. This PA3821U-1BRS battery is compatible with the T210D, T215D, T230, T235, T235D, and Mini Notebook NB505 models. This PA3821U-1BRS battery is rated 10.8 volts and 4400 mAh and will normally last 3 hours on a full charge.

Each battery is individually tested before shipment and backed by 30 day complete satisfaction guarantee and a 2 Year warranty.

You can expect about 2 hours to 3 hours of run time with this PA3821U-1BRS battery when new, depending on your energy use.

Replaces these many laptop battery part numbers: