Opened 10 years ago

Closed 10 years ago

Last modified 21 months ago

#2126 closed defect (fixed)

B4 NIMH Battery problem

Reported by: RafaelOrtiz Owned by: rsmith
Priority: high Milestone:
Component: embedded controller Version:
Keywords: Cc:
Blocked By: Blocking:
Deployments affected: Action Needed:
Verified: no


As see in B4 (Build 496) NIMH batteries
Have duration problems some last less than an hour.

Change History (4)

comment:1 Changed 10 years ago by jg

  • Milestone changed from Untriaged to Trial-2
  • Priority changed from normal to high


Is this just needing to condition the batteries?

If so, we need to document said procedure in the wiki and ensure this information is captured for deployment teams.

comment:2 Changed 10 years ago by kimquirk

In our battery tests with 20+ units, the Ni batteries show the biggest inconsistencies in charging. It takes 2-3 deep discharges before you can get >3 hrs life... even so we have seen some Ni batteries that fail in < 1hr, but the next charge it may last longer.

These tests were done with build 502 and higher.

comment:3 Changed 10 years ago by rsmith

  • Resolution set to fixed
  • Status changed from new to closed

Firmware <= Q2C18 had a major charging issue for NiMH. So they were never getting fully charged.

comment:4 Changed 21 months ago by Quozl

  • Milestone Trial-2 deleted

Milestone Trial-2 deleted

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