# `ExOura.RingBatteryLevel`
[🔗](https://github.com/tgrk/ex_oura/blob/v3.0.1/lib/ex_oura/ring_battery_level.ex#L1)

API functions for retrieving Oura ring battery level time-series data.

# `end_datetime`

```elixir
@type end_datetime() :: DateTime.t() | NaiveDateTime.t()
```

# `next_token`

```elixir
@type next_token() :: String.t() | nil
```

# `opts`

```elixir
@type opts() :: Keyword.t()
```

# `start_datetime`

```elixir
@type start_datetime() :: DateTime.t() | NaiveDateTime.t()
```

# `multiple_ring_battery_level`

```elixir
@spec multiple_ring_battery_level(
  start_datetime(),
  end_datetime(),
  next_token(),
  opts()
) ::
  {:ok, ExOura.Client.TimeSeriesResponsePublicRingBatteryLevelRow.t()}
  | {:error, term()}
```

Retrieves ring battery level rows for a time range.

---

*Consult [api-reference.md](api-reference.md) for complete listing*