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Never connect batteries direct in parallel, except for large, new, matched Zinc carbon or Zinc chloride primary cells. Even that is rare now.
Especially never connect LiPoly cells in parallel*. They are typically above 3.7V but above or equal 4.2V when charged. If the cell is too low it won't charge, or will only charge very slowly.
"It looks dead Jim!"
Keep screen and any ribbons.
[* Some factory made Li-Ion packs may have pairs of matched cells in parallel. Certainly never ever connect different sizes of cells in parallel even if the same chemistry. Fire may occur.]
Last edited by Quoth; 06-25-2025 at 07:33 AM.
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