Macintosh Powerbook 180 Battery

Yet to be tested. Should fit 4 18650s and a slim battery protection circuit. Use heat-set inserts on the posts, drill holes on the "lid" and use some metal bits to make up the contacts (internally and externally).

The original Macintosh Powerbook 180 uses a Lead-Acid battery. I recently acquired one with a dead battery and wish to restore it with a "modern" battery chemistry.