Ranger Quadra with Li-Ion batteries

If you want to use a new li-Ion battery with an old Ranger Quadra pack you can, but this depends on when the battery pack was manufactured.

Please check out your serial number.
All packs with serial numbers beyond 4001 are compatible with Li-ion batteries, without any modification.
All serial numbers below 4001 are not compatible and require a modification of the flash lamp.
For compatible Quadra Heads, please download the PDF manual.