Outdoor christmas lights not mains powered

[Halfachristmas]

Hi can anyone recommend outdoor christmas lights not mains powered for outdoors. Im thinking icicle style lights. Thank you

I think your problem will be battery ones only last a fairly short time (I’ve had small twinkling ones on potted trees before and with low temperatures the batteries die fast) and not enough sunlight for solar.

Something with a large rechargeable battery but I’ve never seen any.

Not helpful- sorry