Got it working...
Select Top 1000000 tblAssets.AssetID,
tblAssets.AssetName,
tblAssetCustom.Custom1,
tsysAssetTypes.AssetTypename,
tsysAssetTypes.AssetTypeIcon10 As icon,
tblAssets.IPAddress,
tblAssetCustom.Manufacturer,
tblAssetCustom.Model,
tblAssets.Username,
tblAssets.Lastseen
From tblAssets
Inner Join tblAssetCustom On tblAssets.AssetID = tblAssetCustom.AssetID
Inner Join tsysAssetTypes On tsysAssetTypes.AssetType = tblAssets.Assettype
Inner Join tblPortableBattery
On tblAssets.AssetID = tblPortableBattery.AssetID
Where tblPortableBattery.CapacityMultiplier >= 0 And tblAssetCustom.State = 1
Group By tblAssets.AssetID,
tblAssets.AssetName,
tblAssetCustom.Custom1,
tsysAssetTypes.AssetTypename,
tsysAssetTypes.AssetTypeIcon10,
tblAssets.IPAddress,
tblAssetCustom.Manufacturer,
tblAssetCustom.Model,
tblAssets.Username,
tblAssets.Lastseen
Order By tblAssetCustom.Custom1 Desc,
tblAssets.AssetName