good charger, but only for 7.2V packs

The charger should be a replacement for my defective Multi-Charger. Unfortunately, you can only 7.2V-pack (6-Zeller) load it. For this, the device is ideally suited. It seems to have a solid finish, looks just like a little too big geratenes notebook power adapter. The battery packs are quite full quickly without excessive heating of the charging appliance; the rated voltage of 7.2V is clearly exceeded but is within the limits (8.2V 3h after charging).
Who needs a charger for 6Zeller is well advised with this charger. Who uses other configurations should look others after what. Hence the star deduction.