Based on this product's specifications, here are some alternatives and similar models
Laptop Battery 2-Power 11.1V 6-cell 48Wh (4400mAh) — replaces J2178, grey
Summary description:
Rechargeable laptop battery by 2-Power with nominal voltage 11.1V and 6 cells, capacity 4400 mAh (48 Wh). Designed as a direct replacement for model J2178 to restore portable power. Lightweight (0.304 kg) and grey-coloured, suitable for compatible notebook models requiring a 11.1V 6-cell pack for everyday mobile use, travel or work.