replacing NIcad batteries in dash

I was wondering if anyone has replaced the NiCad batteries mounted in the dash electronics. What kind should I use, and if I can do it myself. I own a E23 1986 BMW 735i

I have replaced the SI bateries a dozen times.Its not very difficult but you have to be patient.I actualy have been using NiMh batts and most NiCd are NLA.

Email me for directions and parst needed.

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