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  • 6000 series battery advisory - Lithium batteries from eBay not recommended
  • Eric Hiss
6000 series battery advisory - Lithium batteries from eBay not recommended

Over the last year I've had a number of Rolleiflex 6008/6000 series users tell me about a bad experience with one particular ebay seller who is a Lithium battery solution for 6000 series cameras. The seller on ebay is from Quebec, Canada and the batteries are 3D printed blocks fitted with 3 Li cells.   I've been sent several of these batteries after they fail.  One user told me that they failed shortly after buying but not before they left feedback on ebay.   I know that one big problem with Lithium batteries is fire - and that each cell needs to be charged independently to avoid that potential problem.  These Li batteries from the Canadian ebay vendor charge all the cells in a sting or series connection - so that should be the first clue that these are not well designed. 

Now I'm also hearing from my service technician that these batteries could be causing main circuit board failures.  This is an expensive fix.  Rolleiflex 6000 series cameras use more than just the two pins needed for charging to monitor battery and load and temperature.   The Li batteries from Canada don't use all pins, don't have a thermal resistor the cameras read, and can provide higher current.  This is also why those batteries don't work in all cameras.   I strongly recommend against buying battery rebuilds from this vendor. 

I have seen Lithium battery solutions that work well, for example the ones made by Wiese Fototechnik, and some nice home built ones as well.  The 3D printed battery block is an interesting idea, but unfortunately can not recommend.

  • Eric Hiss

Comments on this post ( 1 )

  • Jun 08, 2021

    I had a SLX that stopped working after using it just to play around with – unfortunately I didn’t have a NiMH battery to test the camera and sold the camera for parts. The “charger” the seller sold with it was a simple 12V power supply – definitely not a safe way to charge it. A 3S RC LiPo pack could work, but you’d have to work out the thermal resistor issue. the 3AA holder would also rub on the 3D printed block and pinch the tiny wires.

    — Leo Tam

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