diff --git a/lib/constants.js b/lib/constants.js
index bfef792b..9f140bd3 100644
--- a/lib/constants.js
+++ b/lib/constants.js
@@ -3,12 +3,15 @@ const anonymousCustomer = {
   name: 'anonymous'
 }
 
+const cassetteMaxCapacity = 500
+
 const AUTHENTICATOR_ISSUER_ENTITY = 'Lamassu'
 const AUTH_TOKEN_EXPIRATION_TIME = '30 minutes'
 const REGISTRATION_TOKEN_EXPIRATION_TIME = '30 minutes'
 
 module.exports = {
   anonymousCustomer,
+  cassetteMaxCapacity,
   AUTHENTICATOR_ISSUER_ENTITY,
   AUTH_TOKEN_EXPIRATION_TIME,
   REGISTRATION_TOKEN_EXPIRATION_TIME
diff --git a/lib/plugins.js b/lib/plugins.js
index c08ba46f..b6be4363 100644
--- a/lib/plugins.js
+++ b/lib/plugins.js
@@ -23,6 +23,8 @@ const coinUtils = require('./coin-utils')
 const commissionMath = require('./commission-math')
 const promoCodes = require('./promo-codes')
 
+const { cassetteMaxCapacity } = require('./constants')
+
 const notifier = require('./notifier')
 
 const mapValuesWithKey = _.mapValues.convert({
@@ -599,7 +601,7 @@ function plugins (settings, deviceId) {
       }
       : null
 
-    const cassette1Alert = cashOutEnabled && (device.cassette1 / 500) < notifications.fillingPercentageCassette1
+    const cassette1Alert = cashOutEnabled && (device.cassette1 / cassetteMaxCapacity) < notifications.fillingPercentageCassette1
       ? {
         code: 'LOW_CASH_OUT',
         cassette: 1,
@@ -611,7 +613,7 @@ function plugins (settings, deviceId) {
       }
       : null
 
-    const cassette2Alert = cashOutEnabled && (device.cassette2 / 500) < notifications.fillingPercentageCassette2
+    const cassette2Alert = cashOutEnabled && (device.cassette2 / cassetteMaxCapacity) < notifications.fillingPercentageCassette2
       ? {
         code: 'LOW_CASH_OUT',
         cassette: 2,