Based on this product's specifications, here are some alternatives and similar models
Laptop battery Apple A2681 / A2669 4561mAh replacement NB420605
Summary description:
Rechargeable laptop battery compatible with Apple A2681 and A2669 models, capacity 4561mAh (model NB420605). Designed as a replacement battery to restore runtime for compatible Apple notebooks. Use it to replace a worn or failing battery and regain portable use for everyday tasks, web browsing and light productivity. Installation requires matching model compatibility.