# SpendableBalanceFeeRate

Manual fee-rate override accepted by `getSpendableBalance`. The exact representation depends on the target chain.

oneOf

* number
* string
* string
* string

****number

For Bitcoin balances: positive fee rate in sats/vB.

**Possible values:** `> 0`

**Example:<!-- -->&#x20;**`3.5`

SpendableBalanceFeeRate

```
3.5
```