Amstron LDE-20 replacement battery for Dell BAT30TL is designed for use with the Dell Inspiron 3500 series notebooks. Amstron laptop batteries offer the best value for your dollar offering high quality, affordable replacement batteries direct to the consumer. • Rating: 10.8 Volts 5400 mAh • Description: Rectangular battery with eight slit-type contacts on side (one contact is blank) and fuel gauge on top. • Dimensions: 5.750 x 3.750 x 0.750