On get_posts I need combination OR AND

Hello,
in wordpress 4.6 I made condition arguments for get_posts on price(2 conditions), sku and categories like:

    [meta_query] => Array
        (
            [relation] => AND
            [0] => Array
                (
                    [key] => _price
                    [value] => Array
                        (
                            [0] => 0
                            [1] => 5
                        )

                    [type] => DECIMAL
                    [compare] => BETWEEN
                )

            [1] => Array
                (
                    [key] => _price
                    [value] => Array
                        (
                            [0] => 50.01
                            [1] => 100
                        )

                    [type] => DECIMAL
                    [compare] => BETWEEN
                )

            [2] => Array
                (
                    [key] => _sku
                    [value] => batte
                    [compare] => like
                )

        )

    [tax_query] => Array
        (
            [0] => Array
                (
                    [taxonomy] => product_cat
                    [field] => id
                    [terms] => Array
                        (
                            [0] => 26
                            [1] => 20
                        )

                )

        )

I set AND conditions, but actually I need OR conditions between 2 prices and AND conditions for the rest of conditions.

Which is the correct syntax

Thanks!