Battery failure and care

[ianhol]

Hi. The battery of my pcspecialist Optimus series laptop purchased in December 2014 failed in March 2018 and yesterday. Advise around the following ?'s will be appreciated; is this expected; can the battery temperature be monitored; can the charging/discharging current be monitored; if so how and can the pc be operated without a battery fitted. Thanks in advance.

The spec of the pc is below.

Chassis & Display	Optimus Series: 17.3" Matte Full HD LED Widescreen (1920x1080)
Processor (CPU)	Intel® Core™i5 Dual Core Mobile Processor i5-4210M (2.60GHz) 3MB
Memory (RAM)	8GB KINGSTON SODIMM DDR3 1600MHz (1 x 8GB)
Graphics Card	NVIDIA® GeForce® GTX 860M - 2.0GB DDR5, 640 CUDA Cores - DirectX® 11
2nd Graphics Card	NONE
1st Storage Drive	240GB KINGSTON V300 SSD, SATA 6 Gb (450MB/R, 450MB/W)
2nd Storage Drive	750GB WD SCORPIO BLACK WD7500BPKX, SATA 6 Gb/s, 16MB CACHE (7200 rpm)
1st M.2 SSD Drive	NONE
RAID	NONE
DVD/BLU-RAY Drive	8x SATA DVD±R/RW/Dual Layer (+ 24x CD-RW)
External Hard Drive	NONE
Memory Card Reader	Internal 9 in 1 Card Reader (MMC/RSMMC/SD: Mini, XC & HC/MS: Pro & Duo)
Power Cable	1 x UK Power Lead & 120W AC Adaptor Change to: 2 x UK Power Lead & 120W AC Adaptor
Battery	Optimus Series 8 Cell Lithium Ion Battery (5,200 mAh/76.96WH)

 

[Charlas]

Hwmonitor has battery stats, if the sensors are available to it it will tell you temps. However if its completely dead I would sudgest removing it from the chassis if possible, lithium based batteries aren't the most forgiving things when they are unhealthy.

 

[ianhol]

Hwmonitor has battery stats, if the sensors are available to it it will tell you temps. However if its completely dead I would sudgest removing it from the chassis if possible, lithium based batteries aren't the most forgiving things when they are unhealthy.

Charlas Hwmonitor indicates battery wear rate of 61% which is in line with current 'on battery' operation time of about 25mins, last week is was about 2 hours. No temps available. Thanks for assist.

 

[Charlas]

Charlas Hwmonitor indicates battery wear rate of 61% which is in line with current 'on battery' operation time of about 25mins, last week is was about 2 hours. No temps available. Thanks for assist.

Not 100% dead then yet, but as the chemical process breaks down, so does the ability for it to hold sustained loads. Ask PCS if the stock replacements, or have a look-see if it's a 'generic' part that multiple laptop manufacturers use, must be a part number on it.

 

[ianhol]

Not 100% dead then yet, but as the chemical process breaks down, so does the ability for it to hold sustained loads. Ask PCS if the stock replacements, or have a look-see if it's a 'generic' part that multiple laptop manufacturers use, must be a part number on it.

Charles True but practically it's useless, generic replacement due to arrive on Friday. My thoughts now are how to extend the life of the replacement such a removing it, easy to do, when on mains and it's fully charged. Thanks for assist.

 

[ubuysa]

Charles True but practically it's useless, generic replacement due to arrive on Friday. My thoughts now are how to extend the life of the replacement such a removing it, easy to do, when on mains and it's fully charged. Thanks for assist.

My understanding is that with modern li-ion batteries and very intelligent charging systems there is little affect on battery life by leaving them permanently plugged into the charger. There is some evidence that not discharging below 20% and not charging above 80% does maximise the battery life (in lab tests), however the increase is marginal and unlikely to be worth the effort in managing.

The number one enemy of li-ion batteries is heat, so a fan-assisted laptop cooler doesn't just prolong the life of the laptop, it prolongs the life of the battery too. It also follows that leaving the laptop in the sunshine, or in a case in the sunshine (black cases especially) are likely to reduce battery life, as is using a laptop on your lap.

 

[ianhol]

My understanding is that with modern li-ion batteries and very intelligent charging systems there is little affect on battery life by leaving them permanently plugged into the charger. There is some evidence that not discharging below 20% and not charging above 80% does maximise the battery life (in lab tests), however the increase is marginal and unlikely to be worth the effort in managing.

The number one enemy of li-ion batteries is heat, so a fan-assisted laptop cooler doesn't just prolong the life of the laptop, it prolongs the life of the battery too. It also follows that leaving the laptop in the sunshine, or in a case in the sunshine (black cases especially) are likely to reduce battery life, as is using a laptop on your lap.

Ubuysa Thanks for reply and info. I will be more aware of over heating but disappointingly this seems to be my battery norm.