The warranty is 2 years on all system components except for the battery modules for which the performance warranty duration is 10 years. 

The effective date is in any case considered to be from the date of commissioning (ASS-COM-ZPM) carried out by ZCS technicians. 

For each Cabinet, it is possible to extend the warranty from 2 to 5 years, at the indicated price, while the 10-year performance warranty on the battery modules remains unchanged. 

Partial warranty extensions are not possible, i.e. limited to a portion of the same system.