Quote Originally Posted by Talisker View Post

you will get new batteries or old cells replaced from the successor of Rollei DHW Fototechnik in Germany for e.g.. Today they use NiMH instead of NiCad cells which is a good things as this doubles the capacity and there is no more memory effect to the cells. Existing chargers can be still used.
I replaced my SLX's NiCd cells with NiMH cells and within 10 minutes the battery pack was really, really hot. Disconnected it and I now use a Tenergy Smart Charger for charging the pack with the NiMH cells. I really don't trust the Rollei charger with NiMH cells.