diff --git a/src/controlplushub.ts b/src/controlplushub.ts
index b96b0c4..03298e9 100644
--- a/src/controlplushub.ts
+++ b/src/controlplushub.ts
@@ -32,7 +32,6 @@ export class ControlPlusHub extends LPF2Hub {
 
     protected _currentPort = 0x3b;
     protected _voltagePort = 0x3c;
-    protected _voltageMaxV = 9.615;
     protected _voltageMaxRaw = 4095;
 
     constructor (device: IBLEDevice, autoSubscribe: boolean = true) {
diff --git a/src/puphub.ts b/src/puphub.ts
index a59bf72..a305511 100644
--- a/src/puphub.ts
+++ b/src/puphub.ts
@@ -33,7 +33,6 @@ export class PUPHub extends LPF2Hub {
 
     protected _currentPort = 0x3b;
     protected _voltagePort = 0x3c;
-    protected _voltageMaxV = 9.62;
 
     constructor (device: IBLEDevice, autoSubscribe: boolean = true) {
         super(device, autoSubscribe);