Member Avatar for manchurianCEO

I have had this laptop running windows 7 for about two years and I have been noticing the battery discharges unconsistenly. Sometimes I am solely surfing the internet through out a whole charge and it does last a good hour and a half more or less.

Other times, right after disconnecting it drops instantly from 100% to 94%. Then just keeps dropping at a fast pace. Yesterday I noticed it was 100% after disconnecting and in less than five minutes I was down to 64% and in a couple of minutes it jumped back up to 96%.

I have tried "Battery Bar" and according to it, on a full charge it marked 2.5 hours and 0 battery wear. Even after unplugging, it would recalibrate itself and start the countdown at 2.5 hours battery time. However, now running unplugged, even with wifi turned off and just using exel, "battery bar" would drop 4-7 minutes of charge time for every minute on the clock.

May this be a faulty configuration or more of a faulty battery?

Thank you!

  • 7 Contributors
  • 14 Replies
  • 538 Views
  • 1 Year Discussion Span
  • Latest Post Latest Post by Macpee

Dani AI

Generated

Brief diagnostic summary and a practical checklist for the HP G62 described by . Large, rapid jumps in reported charge usually come from one of three things: actual cell degradation, the battery’s fuel‑gauge (reporting) being inconsistent, or a power/charging subsystem problem. ’s point about age is valid, and ’s suggestion to watch for software spikes is also relevant — the steps below help separate those causes.

  1. Run a Windows energy diagnostic: open an elevated command prompt and run powercfg -energy. Wait about 60 seconds, then open the generated HTML report. It flags drivers or services that cause abnormal power use.
  2. Use the HP hardware/battery test (HP Support Assistant or the built‑in diagnostics) to get a vendor-side health check. That gives a better cell-level result than third‑party meters.
  3. Do a controlled discharge comparison: fully charge, then measure runtime with minimal background activity (wireless off, screen dimmed) and again under a known heavy load (video or streaming). Record both runtimes — large, inconsistent differences point toward failing cells or meter faults.
  4. If the battery is removable, boot on AC with the battery out. Normal behaviour on AC but instability on battery isolates the battery as the likely culprit; problems on AC too indicate the adapter or charging circuitry.
  5. Check capacity numbers with a utility such as BatteryInfoView or HWiNFO (compare design capacity vs full charge capacity). Also inspect the pack for swelling and clean/reseat contacts.

Interpreting results: consistent low capacity → replace the battery. Healthy capacity but erratic reporting → possible fuel‑gauge/firmware issue or charging-board fault (update chipset drivers/BIOS with vendor guidance, but follow update instructions carefully). Note: percentage/time estimates are extrapolations from recent drain, so they can jump when load changes. If replacement is needed, prefer OEM or well‑reviewed vendors over very cheap clones. This checklist builds on the comments from and and helps decide whether to replace the pack or chase software/firmware fixes.

Recommended Answers

All 14 Replies

Member Avatar for fahimk123

My experience says that your laptop battery has been expired. Have you checked the timing how much it is giving to you? If it is giving you less than 10 min of backup then you need to replace a new battery.

Member Avatar for manchurianCEO

Like I said, sometimes it lasts around 1.5 hours worth of internet surfing. Other times it dies faster even with wifi off.

Member Avatar for caperjack

sometimes i think be watch some things to much ,forget the meter and use the laptop .its 2 yrs old it could be getting bad ,only way to know for sure is keep using it ,till it dies

i was using a acer one ,the other day and it was bouncing all over the place,3hrs 5 hrs 7 hrs and it still latted for hrs

Member Avatar for manchurianCEO

How about a bad configuration? is there a way to know if unneccesary procecess are draining the battery and sometimes for some reason they do not run causing the battery to last longer at that particular occasion?

Member Avatar for justinbellaa03

Hello,
I have visited this Hardware and Software forum.it is very beneficial for me and it gives me lots of information that will be very useful to me in the future.I have read this question but i am note able to give your answer right now,sorry for that.So i am giving you this expert link for your queries.

thanks.

ATI RADEON HD 5670 – SERIES GRAPHICS CARDS FROM AMD

Edited by justinbellaa03
Member Avatar for caperjack

it not likely that programs run sometime nd not other time ,it likely you could be doing different things that use more power ,running videos ,download /or moving files around ,using more cpu/video chip ,thus burning more power .surfing the net some pages load small flash videos ect ect using power

my laptop goes from 100% to 95% when i unplug the cord ,and my battery is getting bad ,cause it only last an hour or so now ,so maybe the battery is getting bad ,not holding a good charge ,
battery consumption in altered by how intense the laptop is used at any giving time .

Member Avatar for caperjack

do ctrl alt del ,open task manager .processess and you can watch what programs spike,use cpu

Member Avatar for manchurianCEO

Yes I know that. But again, does not make sense I am surfing the internet watching videos and continuously surfing for 1. 5 hours, but then another time wifi is 'off', screen brightness is at the lowest level and I'm only running microsoft exel and the machine dies in 30 minutes.

Member Avatar for caperjack

maybe excell is taking the cpu ,what happens in the same 30 minutes doing nuttin,just sitting idel,disable ssleep and hibernate if set ,and just let it sit,not sure what else couldbe causing it to do something as drastic as a full hr,difference

Member Avatar for manchurianCEO

sorry I don't really understand what you say

Member Avatar for caperjack

let me put it this was ,turn on laptop ,charge it fully ,unplug and let it sit running ,no excell or any other programs running ,open task manager ,and sit and watch the proceses and see what ones spike when using cpu

Member Avatar for Dushimire

my laptop is lenovo B570 my battery is normally gd but when i am shutting down my laptop all lights on it still turn on and consume the battery energy.is their any bad installation or my laptop is damaged?

Member Avatar for Rik_

Are you shutting it down or putting it into sleep mode?

Member Avatar for Macpee

my laptop charging point fluctuates, i have to plug the charger in a special and careful way before into the charging point on my Laptop before it charges, Please does anybody hav an idea what could be the problem.

Be a part of the DaniWeb community

We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.