Rectangular battery with five slit-type contacts and fuel gauge on side. 14.8 Volt Li-Ion Laptop Battery. Fits models; Acer Aspire 1300, Gateway Solo 1400, Gateway Solo 1450, Hewlett Packard Pavilion XF series, Hewlett Packard Pavilion XF145, Hewlett Packard Pavilion XF255, Hewlett Packard Pavilion XF328, Hewlett Packard Pavilion XF335, Hewlett Packard Pavilion ZE1000, Hew