One-touch rechargeable battery motors from louvolite for Roller blinds. two different motors the 1.2Nm for smaller blinds & for larger blinds for the 1.8Nm. Both motors have a built-in rechargeable battery, so no external battery pack.

An external Solar Panel charger can also be added to allow high out-of-reach blinds to be kept fully charged.

https://www.windowblindspares.com

For your smaller blinds, the 25mm lithium rechargeable battery 1.2Nm option is ideal

For those larger blinds, the Lithium Rechargeable battery 1.8Nm

The motors can be operated using a handheld wireless remote switch or wall switch. With single-blind operation, or group control. Timer options are available.