Based on this product's specifications, here are some alternatives and similar models
Battery Blue Star BL-4CT for Nokia 5310 / X3-01 / 6600 fold — Li-Ion 950 mAh
Summary description:
Replacement Blue Star BL-4CT rechargeable battery compatible with Nokia 5310, X3-01 and 6600 fold models. Lithium‑ion chemistry, nominal capacity 950 mAh, designed for mobile phone power supply and standby use. Suitable for restoring original run time, supporting calls, messaging and basic phone functions in everyday use.