No, this is not necessary. The defib has a battery that can deliver more than 200 shocks and this battery has a 4-year manufacturer’s warranty.
Are you registering these defibs on www.thecircuit.uk or do your customers have to do this themselves?
Can you assist with the installation of the defib?
"Where can I register my AED so that it is available for everyone? (NL)/(UK)/(FR)"