Battery charges. MBA does not use battery power. It must be plugged

Battery charges to between 98% and 100%. MBA does not use battery power, except for 2% or so. It must be plugged at all times. No known damage.

OS X El Capitan 10.11.1 (15B42)

MacBook Air (13-inch, Late 2010)

2.13 GHz Intel Core 2 Duo

4 GB 1067 MHz DDR3

NVIDIA GeForce 320M 256 MB