Battery charger for Kommoda, Ranger, Trax, Ovia, Bandit, Kuattro, XF650, XF800 and XF900

As expected, the charger worked perfectly on my Kuattro. What would be reassuring to the customer is whether the charger is certified for safety, to what standard, and by what authority has it been tested and passed. Particularly in view of the excessive cost by comparison to other chargers of same spec.