Lead-acid battery
HoldTools
A rechargeable battery chemistry commonly used for backup power.
Why it's here
Placed in Hold: 1 article(s) of evidence from 1 source(s), led by research-stage coverage, with 1 in the last 30 days. Confidence 24%. Low accumulated evidence, so it defaults conservatively pending more signal.
Evidence (1)
- 2Hacker News·9/23/2026researchVolunteers fix the Portobello Police Station clock
Volunteers climbed into the old Portobello Police Station clock tower to inspect and reset a historic clock mechanism after a community group asked for help keeping it working. They found an electric motor-driven setup, disconnected the drive via a pawl, and successfully set the time; they also examined a modified chime system controlled by a PIC microcontroller-based box.