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KoolKid
1 Nickel

Disabling Battery Charge While Plugged in

I recently purchased the dell Inspiron 15z and was wondering if there was a way to disable the battery from charging when im plugged in because I do not want to wear out the battery and would like to stay plugged in and not use the battery. I would just remove the battery normally but because this is an ultrabook I am not sure how to get to the battery, the battery doesn't seem to be on the outside.

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21 Replies
Anonymous
Not applicable

Re: Disabling Battery Charge While Plugged in

Hi,

Welcome to the community

When did the problem start? Please check this thread for resolutions

en.community.dell.com/.../20174031.aspx

Let me know if further help is needed.

Regards,

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kirkd
5 Rhenium

Re: Disabling Battery Charge While Plugged in

The battery will not overcharge. The battery circuity prevents. You can not disable the charging.

XPS M1530, Win 10 CU Pro 32-bit
Inspiron E1705, Win 10 CU Pro 32-bit
Dimension 9100, Win 10 AU Pro 32 bit
Inspiron 660, Win 10 CU 64 bit
Inspiron 3668, Win 10 CU 64 bit
Asus T100 Tablet, Windows 10 CU 32 bit

KoolKid
1 Nickel

Re: Disabling Battery Charge While Plugged in

but when I am plugged in it still says that it is charging when I have full battery is this supposed to happen? also how do I know that my laptop has that feature where it will not overcharge?

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kirkd
5 Rhenium

Re: Disabling Battery Charge While Plugged in

Should stop charging when it's full. Sometimes it takes a while to shut off completely. If it continues to charge when it's full, contact Dell. This could happen if the battery circuity is faulty or the charger is faulty.

XPS M1530, Win 10 CU Pro 32-bit
Inspiron E1705, Win 10 CU Pro 32-bit
Dimension 9100, Win 10 AU Pro 32 bit
Inspiron 660, Win 10 CU 64 bit
Inspiron 3668, Win 10 CU 64 bit
Asus T100 Tablet, Windows 10 CU 32 bit

KoolKid
1 Nickel

Re: Disabling Battery Charge While Plugged in

If it stops charging when it is full will it run of the AC adapter power or the battery power? I want it to run of the Ac adapter power and not use the battery at all. thanks for answering my questions.

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Anonymous
Not applicable

Re: Disabling Battery Charge While Plugged in

Hi,

Laptops are designed to detect if Battery is Full, once this occured the circuit will divert all the power from Ac to the system alone. Once circuit detects that battery is less than 100% it will go back charging it. To prolong battery life, one good practice is not to drain it all the way. Once it warns you that battery is low, try charging it again.

Regards,

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KoolKid
1 Nickel

Re: Disabling Battery Charge While Plugged in

Hi,

You said that laptops are designed to not overcharge the battery because the circuit will divert all power from ac to the system alone. If this is true then how come my previous dell laptop had the battery fried when I was plugged in all the time. Also to prolong battery life should I drain it all the way sometimes or not at all. Since this is a lithium Ion battery I am assuming the battery memory thing does not apply am I wrong?

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KoolKid
1 Nickel

Re: Disabling Battery Charge While Plugged in

take that back I actually have a 6-cell Prismatic battery does the memory apply to this type of battery?

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kirkd
5 Rhenium

Re: Disabling Battery Charge While Plugged in

Lithium ion batteries do not have a memory problem. However, sometimes things go awry, and you will get funny battery readings. In this case, you SHOULD discharge the battery to a low level to reset the circuit. Do not go below 35% too often, as deep discharges will shorten battery life capacity and life. Keeping the batter installed all the time DOES NOT shorten battery capacity or life.

Lifetime is based mostly on the number of discharge/charge cycles and how low the charge is allowed to go. Electric autos are set up to not discharge below about 50% (Prius) to 35% (Volt). The Volt uses improved Lithium technology. This is done to reduce the chances of batteries going dead; battery life is guaranteed for 100,000 miles and they are expensive.

My wife's E1705 Dell battery lasted 2 1/2 years and the first replacement 3 1/2 years. The batteries were always in place. My M1530 factory battery is 5 years old and still has over 50% of it's original run time. It's been in the laptop all the time.

XPS M1530, Win 10 CU Pro 32-bit
Inspiron E1705, Win 10 CU Pro 32-bit
Dimension 9100, Win 10 AU Pro 32 bit
Inspiron 660, Win 10 CU 64 bit
Inspiron 3668, Win 10 CU 64 bit
Asus T100 Tablet, Windows 10 CU 32 bit