High safety due to integrated heat and overload protection, 100% compatible with the original EN-EL18. The battery is equipped with brand-name cells of grade A, which have an extremely high density. This contributes to very long battery runtimes. A maximum level of safety is ensured through continuous quality control at the production facilities on-site by Patona team members. The original charger can be used to charge the battery. This battery is a high-quality replacement product from the Patona brand - not an original.