Based on this product's specifications, here are some alternatives and similar models
Rechargeable Li‑ion Battery Nitecore NL1411 14500 1100mAh
Summary description:
Nitecore NL1411 is a rechargeable 14500‑format lithium‑ion battery with 1100 mAh nominal capacity. Designed for compact devices that use 14500 cells, it provides a replaceable power source for flashlights, headlamps, small electronics and portable tools. The cell suits applications requiring a compact rechargeable battery with moderate energy density and stable voltage.