HP75D battery design
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11-02-2020, 10:12 PM
Post: #2
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RE: HP75D battery design
(11-02-2020 08:40 PM)Hans-Peter Wrote: I recently bought a HP75D without battery. According to relevant information a Classic Pac should work. Unfortunately the contacts are not where they are on the Classic Pac and there are 3 contacts. Can anyone tell me what the third contact is for? Classic battery packs work fine, the 2 leftmost contacts are in the correct place. An engineer that worked on the 75 product line confirmed at HHC a couple years ago that there was short-lived plan to introduce a new battery design and the 3rd contact was somehow involved in the charging of the new design, but it was abandoned just after the 75 design added the contact. Some late 75D machines don't have the 3rd contact, but it's not clear when the configuration changed. --Bob Prosperi |
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HP75D battery design - Hans-Peter - 11-02-2020, 08:40 PM
RE: HP75D battery design - rprosperi - 11-02-2020 10:12 PM
RE: HP75D battery design - Hans-Peter - 11-03-2020, 09:07 PM
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