- 20pcs. of 12V/9Ah batteries inside battery pack- Increase backup time autonomy- Connection cable inside package content- We have also available bigger battery pack for this UPS- With inside 40pcs. of 12V/9Ah batteriesWith this battery pack you can increase backup time for your connected equipment. Connection will be established by just one ANEN cable which is inside package content. If you later see demand to increase again backup time you can connect another battery pack to the second battery connector on rear panel of battery pack.