HP Elite Dragonfly 13.5 Maintenance and Service Guide - Page 88

Battery discharges too fast, Use this information to troubleshoot battery issues.

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Table 6-12 Issues, possible causes, and fixes (continued) Items Procedures 1. Determine whether the computer needs the AC adapter to boot and operate. Sometimes, an intermittently bad AC adapter and loose connection between adapter and computer results in inability to charge battery, which causes short run time. 2. Inspect AC adapter to verify that it is functioning. 3. Test with a working AC adapter and confirm whether battery is charging. 4. Be sure that battery is fully charged (AC adapter plugged in at least 2.5 hours). Diagnostics: HP tools report results such as passed, calibrate, weak, replace, no battery, and unknown, and they suggest corresponding actions. Use HP Hardware Diagnostics (UEFI) (6. HP Hardware Diagnostics and Tools on page 62) HP PC Hardware Diagnostics (UEFI) is a good tool to use to isolate and determine faulty battery, especially for quickly discharging (short life) battery. 1. Verify that battery is recognized and charging. 2. Verify battery condition if battery cycle life is past its life expectancy (that is, past 1000-cycle life and 3-year warranty). Battery might need to be replaced. 3. If issue remains, test with a verified working battery and verify battery status lights and battery conditions. 4. If issue remains, replace system board. 5. Verify the new replacement. Tips See the computer user guide for instructions regarding battery maintenance and increasing battery life. Also see http://support.hp.com/us-en/document/c01297640? jumpid=hpr_r1002_usen_link3. Battery discharges too fast Use this information to troubleshoot battery issues. Table 6-13 Issues, possible causes, and fixes Items Procedures Symptoms Possible causes Battery has good status light but discharges too fast AC adapter, battery, or both. Troubleshooting steps Verify AC adapter Determine whether the computer needs the AC adapter to boot and operate. Sometimes an intermittently bad AC adapter and loose connection between adapter and computer results in the inability to charge the battery and causes short runtime. 1. Inspect AC adapter to verify that it is working. 2. Test with AC adapter alone and with a verified working AC adapter. Verify battery: Because battery capacity can degrade over time, check the warranty coverage. Run a battery test to confirm whether issue is hardware related. Battery discharges too fast 79

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Table 6-12
Issues, possible causes, and fixes
(continued)
Items
Procedures
1.
Determine whether the computer needs the AC adapter to boot and operate.
Sometimes, an intermittently bad AC adapter and loose connection between adapter
and computer results in inability to charge battery, which causes short run time.
2.
Inspect AC adapter to verify that it is functioning.
3.
Test with a working AC adapter and confirm whether battery is charging.
4.
Be sure that battery is fully charged (AC adapter plugged in at least 2.5 hours).
Diagnostics:
HP tools report results such as passed, calibrate, weak, replace, no battery, and
unknown, and they suggest corresponding actions.
Use HP Hardware Diagnostics (UEFI)
(
6. HP Hardware Diagnostics and Tools
on page
62
)
HP PC Hardware Diagnostics (UEFI) is a good tool to use to isolate and determine faulty
battery, especially for quickly discharging (short life) battery.
1.
Verify that battery is recognized and charging.
2.
Verify battery condition if battery cycle life is past its life expectancy (that is, past
1000-cycle life and 3-year warranty). Battery might need to be replaced.
3.
If issue remains, test with a verified working battery and verify battery status lights and
battery conditions.
4.
If issue remains, replace system board.
5.
Verify the new replacement.
Tips
See the computer user guide for instructions regarding battery maintenance and
increasing battery life. Also see
us-
en/
document/
c01297640?
jumpid=hpr_r1002_usen_link3
.
Battery discharges too fast
Use this information to troubleshoot battery issues.
Table 6-13
Issues, possible causes, and fixes
Items
Procedures
Symptoms
Battery has good status light but discharges
too fast
Possible causes
AC adapter, battery, or both.
Troubleshooting steps
Verify AC adapter
Determine whether the computer needs the AC adapter to boot and operate.
Sometimes an intermittently bad AC adapter and loose connection between adapter
and computer results in the inability to charge the battery and causes short runtime.
1.
Inspect AC adapter to verify that it is working.
2.
Test with AC adapter alone and with a verified working AC adapter.
Verify battery:
Because battery capacity can degrade over time, check the warranty
coverage. Run a battery test to confirm whether issue is hardware related.
Battery discharges too fast
79