Batteries - Revision history

imported_>joerg_rw: Undo revision 45778 by 70.135.114.247 (Talk) SPAM

2011-11-22T02:51:43Z

Undo revision 45778 by 70.135.114.247 (Talk) SPAM

← Older revision		Revision as of 02:51, 22 November 2011
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	[[Category:Hardware]]		[[Category:Hardware]]
	[[Category:Users]]		[[Category:Users]]
	~~[http://www.prlog.org/11289974-phone-number-lookup-verizon-phone-number-reverse-lookup-to-get-information-you-need-quickly.html cell phone number lookup]~~

70.135.114.247: /* Battery Status */

2011-11-21T22:09:02Z

Battery Status

← Older revision		Revision as of 22:09, 21 November 2011
Line 63:		Line 63:
	[[Category:Hardware]]		[[Category:Hardware]]
	[[Category:Users]]		[[Category:Users]]
			[http://www.prlog.org/11289974-phone-number-lookup-verizon-phone-number-reverse-lookup-to-get-information-you-need-quickly.html cell phone number lookup]

193.167.100.88: /* Extend Battery Lifetime */ new old stock is old

2010-08-02T07:28:29Z

Extend Battery Lifetime: new old stock is old

← Older revision		Revision as of 07:28, 2 August 2010
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	*Stay cool. Li-ion batteries should be kept cool. Ideally they are stored in a refrigerator. Aging will take its toll much faster at high temperatures. The high temperatures found in cars cause lithium-ion batteries to degrade rapidly.		*Stay cool. Li-ion batteries should be kept cool. Ideally they are stored in a refrigerator. Aging will take its toll much faster at high temperatures. The high temperatures found in cars cause lithium-ion batteries to degrade rapidly.
	*Only buy new batteries when you need them.		*Only buy new batteries when you need them.
			*When buying new batteries, try to check the manufacturing date to make sure they really are new.

	==Extend Device Run Time==		==Extend Device Run Time==

imported_>amigadave: wikify and tidy

2010-06-14T14:15:12Z

wikify and tidy

← Older revision		Revision as of 14:15, 14 June 2010
Line 1:		Line 1:
	All the Nokia tablets use [~~http~~:~~//en.~~wikipedia~~.org/wiki/Lithium_ion_battery~~ lithium-ion batteries], which have specific requirements for care to maintain optimal battery longevity.		All the Nokia tablets use [[:wikipedia:Lithium-ion battery\|lithium-ion batteries]], which have specific requirements for care to maintain optimal battery longevity.

	__TOC__		__TOC__
Line 5:		Line 5:
	''Warning: do not buy cheap replacement Nokia batteries from ebay or other such sites. Most of these batteries are fakes and come with a much lower capacity than advertised.''		''Warning: do not buy cheap replacement Nokia batteries from ebay or other such sites. Most of these batteries are fakes and come with a much lower capacity than advertised.''

	=Li-ion Battery Summary=		==Li-ion Battery Summary==
	==Charging, Storage and Usage==		===Charging, Storage and Usage===
	===Memory Effect===		====Memory Effect====
	:Li-ion batteries do not suffer from the memory effect. They have a low self-discharge rate of approximately 5% per month, compared with over 30% per month in nickel metal hydride batteries and 10% per month in nickel cadmium batteries.

	===Lifetime & Capacity Loss===		Li-ion batteries do not suffer from the memory effect. They have a low self-discharge rate of approximately 5% per month, compared with over 30% per month in nickel metal hydride batteries and 10% per month in nickel cadmium batteries.
	:The battery can be charged and discharged hundreds of times but it will eventually wear out. When the operating time (talk-time and standby time) is noticeably shorter than normal, it is time to buy a new battery.
	:Capacity loss is a function of number of full-discharge cycles since manufacturing, and other stress factors, including over-/under-voltage, over-current, and over-/under-temperature.		====Lifetime & Capacity Loss====

			The battery can be charged and discharged hundreds of times but it will eventually wear out. When the operating time (talk-time and standby time) is noticeably shorter than normal, it is time to buy a new battery.

			Capacity loss is a function of number of full-discharge cycles since manufacturing, and other stress factors, including over-/under-voltage, over-current, and over-/under-temperature.

	===Temperature===		====Temperature====
	:Leaving the battery in hot or cold places, such as in a closed car in summer or winter conditions, will reduce the capacity and lifetime of the battery. Always try to keep the battery between 15°C and 25°C (59°F and 77°F). A phone with a hot or cold battery may temporarily not work, even when the battery is fully charged.
			Leaving the battery in hot or cold places, such as in a closed car in summer or winter conditions, will reduce the capacity and lifetime of the battery. Always try to keep the battery between 15°C and 25°C (59°F and 77°F). A phone with a hot or cold battery may temporarily not work, even when the battery is fully charged.

			Batteries' performance is particularly limited in temperatures well below freezing.

			====Storage====

	:~~Batteries' performance is particularly limited in temperatures well below freezing~~.		Heat affects capacity loss during storage. "Different storage temperatures produce different loss results: 6% loss at 0 °C/32 °F, 20% at 25 °C/77 °F, and 35% at 40 °C/104 °F. When stored at 40% charge level, these figures are reduced to 2%, 4%, 15% at 0, 25 and 40 degrees Celsius respectively."

	===~~Storage~~===		====Voltage====
	:Heat affects capacity loss during storage. "Different storage temperatures produce different loss results: 6% loss at 0 °C/32 °F, 20% at 25 °C/77 °F, and 35% at 40 °C/104 °F. When stored at 40% charge level, these figures are reduced to 2%, 4%, 15% at 0, 25 and 40 degrees Celsius respectively."

	~~===~~Voltage~~===~~		Voltage ranges from 3.0V (discharged) to 4.2V (charged). 3.7V nominal voltage

	~~: Voltage ranges from 3.0V (discharged) to 4.2V (charged)~~		====Disposal====
	~~:* 3.7V nominal voltage~~
	===Disposal===		Dispose of batteries according to local regulations (e.g. recycling). Do not dispose as household waste.
	:Dispose of batteries according to local regulations (e.g. recycling). Do not dispose as household waste.
			===Extend Battery Lifetime===

	~~==Extend Battery Lifetime==~~
	*For good operation times with Li-Ion batteries, discharge the battery from time to time by leaving the product switched on until it turns itself off.		*For good operation times with Li-Ion batteries, discharge the battery from time to time by leaving the product switched on until it turns itself off.
	*Stay 40-60% charged for storage - around 3.6-3.8V. "Unlike Ni-Cd batteries, lithium-ion batteries should be charged early and often. However, if they are not used for a longer time, they should be brought to a charge level of around 40%. Lithium-ion batteries should never be "deep-cycled" like Ni-Cd batteries"		*Stay 40-60% charged for storage - around 3.6-3.8V. Unlike Ni-Cd batteries, lithium-ion batteries should be charged early and often. However, if they are not used for a longer time, they should be brought to a charge level of around 40%. Lithium-ion batteries should never be "deep-cycled" like Ni-Cd batteries
	*Stay cool. "Li-ion batteries should be kept cool. Ideally they are stored in a refrigerator. Aging will take its toll much faster at high temperatures. The high temperatures found in cars cause lithium-ion batteries to degrade rapidly."		*Stay cool. Li-ion batteries should be kept cool. Ideally they are stored in a refrigerator. Aging will take its toll much faster at high temperatures. The high temperatures found in cars cause lithium-ion batteries to degrade rapidly.
	*Only buy new batteries when you need them.		*Only buy new batteries when you need them.

	=Extend Device Run Time=		==Extend Device Run Time==
	~~:See [[Make_your_battery_last_longer \|~~
	~~Make your battery last longer]] for tips on extending running time on your device.~~

	~~=Battery Status=~~		See [[Make your battery last longer]] for tips on extending running time on your device.

	:There is much more information available about the battery than the charge indicator icon. To get a more precise description of the battery's charge, type		==Battery Status==

			There is much more information available about the battery than the charge indicator icon. To get a more precise description of the battery's charge, type

	lshal \| grep percentage		lshal \| grep percentage

	:in the ~~xterminal~~ (Open xterm with Ctrl-Shift-x). The lshal (list hardware abstraction layer) command returns a long printout of information about the hardware. Grep is a linux user command that searches input for a specific string and prints the line that it is found in.		in the [[terminal]] (Open xterm with Ctrl-Shift-x). The lshal (list hardware abstraction layer) command returns a long printout of information about the hardware. Grep is a linux user command that searches input for a specific string and prints the line that it is found in.

	:To get any information about the battery, type:		To get any information about the battery, type:

	lshal -u /org/freedesktop/Hal/devices/bme		lshal -u /org/freedesktop/Hal/devices/bme

	:The percentage that is returned is relative to the fullest charge the battery has ever sustained, so it will be less than 100 even after recharging, and the highest value it can reach will decrease over time as the battery wears.([https://bugs.maemo.org/show_bug.cgi?id=7636 See the comments].)		The percentage that is returned is relative to the fullest charge the battery has ever sustained, so it will be less than 100 even after recharging, and the highest value it can reach will decrease over time as the battery wears.([https://bugs.maemo.org/show_bug.cgi?id=7636 See the comments].)


	[[Category:Hardware]]		[[Category:Hardware]]
	[[Category:~~Power users]]~~		[[Category:Users]]
	~~[[Category:Beginners~~]]

85.181.9.44: /* Battery Status */

2010-05-26T15:06:41Z

Battery Status

← Older revision		Revision as of 15:06, 26 May 2010
Line 47:		Line 47:
	:in the xterminal (Open xterm with Ctrl-Shift-x). The lshal (list hardware abstraction layer) command returns a long printout of information about the hardware. Grep is a linux user command that searches input for a specific string and prints the line that it is found in.		:in the xterminal (Open xterm with Ctrl-Shift-x). The lshal (list hardware abstraction layer) command returns a long printout of information about the hardware. Grep is a linux user command that searches input for a specific string and prints the line that it is found in.

	To get any information about the battery, type:		:To get any information about the battery, type:

	lshal -u /org/freedesktop/Hal/devices/bme		lshal -u /org/freedesktop/Hal/devices/bme

85.181.9.44: /* Battery Status */

2010-05-26T15:06:11Z

Battery Status

← Older revision		Revision as of 15:06, 26 May 2010
Line 46:		Line 46:

	:in the xterminal (Open xterm with Ctrl-Shift-x). The lshal (list hardware abstraction layer) command returns a long printout of information about the hardware. Grep is a linux user command that searches input for a specific string and prints the line that it is found in.		:in the xterminal (Open xterm with Ctrl-Shift-x). The lshal (list hardware abstraction layer) command returns a long printout of information about the hardware. Grep is a linux user command that searches input for a specific string and prints the line that it is found in.

			To get any information about the battery, type:

			lshal -u /org/freedesktop/Hal/devices/bme

	:The percentage that is returned is relative to the fullest charge the battery has ever sustained, so it will be less than 100 even after recharging, and the highest value it can reach will decrease over time as the battery wears.([https://bugs.maemo.org/show_bug.cgi?id=7636 See the comments].)		:The percentage that is returned is relative to the fullest charge the battery has ever sustained, so it will be less than 100 even after recharging, and the highest value it can reach will decrease over time as the battery wears.([https://bugs.maemo.org/show_bug.cgi?id=7636 See the comments].)

imported_>cas07: Revamp layout and consolidate information

2010-01-16T21:40:07Z

Revamp layout and consolidate information

← Older revision		Revision as of 21:40, 16 January 2010
Line 1:		Line 1:
	~~Warning~~: ~~do not buy cheap replacement Nokia batteries from ebay or other such sites~~. ~~Most of these~~ batteries ~~are fakes and come with a much lower capacity than advertised~~.		All the Nokia tablets use [http://en.wikipedia.org/wiki/Lithium_ion_battery lithium-ion batteries], which have specific requirements for care to maintain optimal battery longevity.

	~~The tablets use [http://en.wikipedia.org/wiki/Lithium_ion_battery lithium-ion batteries], which have specific requirements for care to maintain optimal battery longevity.~~		__TOC__

	*No memory. "Li-ion batteries do not suffer from the memory effect. They ~~also~~ have a low self-discharge rate of approximately 5% per month, compared with over 30% per month in nickel metal hydride batteries and 10% per month in nickel cadmium batteries."		''Warning: do not buy cheap replacement Nokia batteries from ebay or other such sites. Most of these batteries are fakes and come with a much lower capacity than advertised.''
	*Capacity loss is a function of number of full-discharge cycles since manufacturing, and other stress factors, including over-/under-voltage, over-current, and over-/under-temperature. "a battery ~~stored inside~~ a ~~poorly ventilated laptop may be subject to a prolonged exposure to much higher temperatures than 25 °C~~, ~~which~~ will ~~significantly shorten its life~~."
	*Heat and ~~cold shortens battery lifespan~~ (~~heat buildup can be reduced with proper ventilation~~). "a battery ~~stored inside a poorly ventilated laptop~~ may ~~be subject to a prolonged exposure to much higher~~ temperatures ~~than 25 °C, which will significantly shorten its life~~."		=Li-ion Battery Summary=
	*Heat affects capacity loss during storage. "Different storage temperatures produce different loss results: 6% loss at 0 °C/32 °F, 20% at 25 °C/77 °F, and 35% at 40 °C/104 °F. When stored at 40% charge level, these figures are reduced to 2%, 4%, 15% at 0, 25 and 40 degrees Celsius respectively."		==Charging, Storage and Usage==
	*Voltage ~~range is~~ from 3.0V (discharged) to 4.2V (charged)~~, with~~ 3.7V ~~being~~ nominal.		===Memory Effect===
	*~~Guidelines~~ to ~~extend battery life~~		:Li-ion batteries do not suffer from the memory effect. They have a low self-discharge rate of approximately 5% per month, compared with over 30% per month in nickel metal hydride batteries and 10% per month in nickel cadmium batteries.
	**Stay 40-60% charged for storage - around 3.6-3.8V. "Unlike Ni-Cd batteries, lithium-ion batteries should be charged early and often. However, if they are not used for a longer time, they should be brought to a charge level of around 40%. Lithium-ion batteries should never be "deep-cycled" like Ni-Cd batteries"
	**Stay cool. "Li-ion batteries should be kept cool. Ideally they are stored in a refrigerator. Aging will take its toll much faster at high temperatures. The high temperatures found in cars cause lithium-ion batteries to degrade rapidly."		===Lifetime & Capacity Loss===
			:The battery can be charged and discharged hundreds of times but it will eventually wear out. When the operating time (talk-time and standby time) is noticeably shorter than normal, it is time to buy a new battery.
			:Capacity loss is a function of number of full-discharge cycles since manufacturing, and other stress factors, including over-/under-voltage, over-current, and over-/under-temperature.

			===Temperature===
			:Leaving the battery in hot or cold places, such as in a closed car in summer or winter conditions, will reduce the capacity and lifetime of the battery. Always try to keep the battery between 15°C and 25°C (59°F and 77°F). A phone with a hot or cold battery may temporarily not work, even when the battery is fully charged.

			:Batteries' performance is particularly limited in temperatures well below freezing.

			===Storage===
			:Heat affects capacity loss during storage. "Different storage temperatures produce different loss results: 6% loss at 0 °C/32 °F, 20% at 25 °C/77 °F, and 35% at 40 °C/104 °F. When stored at 40% charge level, these figures are reduced to 2%, 4%, 15% at 0, 25 and 40 degrees Celsius respectively."

			===Voltage===

			: Voltage ranges from 3.0V (discharged) to 4.2V (charged)
			:* 3.7V nominal voltage
			===Disposal===
			:Dispose of batteries according to local regulations (e.g. recycling). Do not dispose as household waste.

			==Extend Battery Lifetime==
			*For good operation times with Li-Ion batteries, discharge the battery from time to time by leaving the product switched on until it turns itself off.
			*Stay 40-60% charged for storage - around 3.6-3.8V. "Unlike Ni-Cd batteries, lithium-ion batteries should be charged early and often. However, if they are not used for a longer time, they should be brought to a charge level of around 40%. Lithium-ion batteries should never be "deep-cycled" like Ni-Cd batteries"
			*Stay cool. "Li-ion batteries should be kept cool. Ideally they are stored in a refrigerator. Aging will take its toll much faster at high temperatures. The high temperatures found in cars cause lithium-ion batteries to degrade rapidly."
	*Only buy new batteries when you need them.		*Only buy new batteries when you need them.

	==~~Checking~~ your battery ~~status~~==		=Extend Device Run Time=
			:See [[Make_your_battery_last_longer \|
			Make your battery last longer]] for tips on extending running time on your device.

			=Battery Status=

	There is much more information available about the battery than the charge indicator icon. To get a more precise description of the battery's charge, type		:There is much more information available about the battery than the charge indicator icon. To get a more precise description of the battery's charge, type

	lshal \| grep percentage		lshal \| grep percentage

	in the xterminal (Open xterm with Ctrl-Shift-x). The lshal (list hardware abstraction layer) command returns a long printout of information about the hardware. Grep is a linux user command that searches input for a specific string and prints the line that it is found in.		:in the xterminal (Open xterm with Ctrl-Shift-x). The lshal (list hardware abstraction layer) command returns a long printout of information about the hardware. Grep is a linux user command that searches input for a specific string and prints the line that it is found in.

			:The percentage that is returned is relative to the fullest charge the battery has ever sustained, so it will be less than 100 even after recharging, and the highest value it can reach will decrease over time as the battery wears.([https://bugs.maemo.org/show_bug.cgi?id=7636 See the comments].)

	The percentage that is returned is relative to the fullest charge the battery has ever sustained, so it will be less than 100 even after recharging, and the highest value it can reach will decrease over time as the battery wears.([https://bugs.maemo.org/show_bug.cgi?id=7636 See the comments].)

	[[Category:Hardware]]		[[Category:Hardware]]
	[[Category:Power users]]		[[Category:Power users]]
	[[Category:Beginners]]		[[Category:Beginners]]

imported_>cas07 at 18:20, 16 January 2010

2010-01-16T18:20:57Z

← Older revision		Revision as of 18:20, 16 January 2010
Line 1:		Line 1:
	Warning: do not buy cheap replacement Nokia batteries from ebay or other such sites. Most of these batteries are fakes and come with a much lower capacity than advertised.		Warning: do not buy cheap replacement Nokia batteries from ebay or other such sites. Most of these batteries are fakes and come with a much lower capacity than advertised.
	~~[[Category:Beginners]]~~
	The tablets use [http://en.wikipedia.org/wiki/Lithium_ion_battery lithium-ion batteries], which have specific requirements for care to maintain optimal battery longevity.		The tablets use [http://en.wikipedia.org/wiki/Lithium_ion_battery lithium-ion batteries], which have specific requirements for care to maintain optimal battery longevity.

Line 25:		Line 25:
	[[Category:Hardware]]		[[Category:Hardware]]
	[[Category:Power users]]		[[Category:Power users]]
			[[Category:Beginners]]

imported_>flandry: Added information on checking battery capacity

2010-01-05T14:52:27Z

Added information on checking battery capacity

← Older revision		Revision as of 14:52, 5 January 2010
Line 13:		Line 13:
	*Only buy new batteries when you need them.		*Only buy new batteries when you need them.

			==Checking your battery status==

			There is much more information available about the battery than the charge indicator icon. To get a more precise description of the battery's charge, type

			lshal \| grep percentage

			in the xterminal (Open xterm with Ctrl-Shift-x). The lshal (list hardware abstraction layer) command returns a long printout of information about the hardware. Grep is a linux user command that searches input for a specific string and prints the line that it is found in.

			The percentage that is returned is relative to the fullest charge the battery has ever sustained, so it will be less than 100 even after recharging, and the highest value it can reach will decrease over time as the battery wears.([https://bugs.maemo.org/show_bug.cgi?id=7636 See the comments].)

	[[Category:Hardware]]		[[Category:Hardware]]
	[[Category:Power users]]		[[Category:Power users]]

imported_>ossipena at 06:34, 19 November 2009

2009-11-19T06:34:50Z

← Older revision		Revision as of 06:34, 19 November 2009
Line 13:		Line 13:
	*Only buy new batteries when you need them.		*Only buy new batteries when you need them.

	~~[[Category:Users]]~~
	[[Category:Hardware]]		[[Category:Hardware]]
	[[Category:Power users]]		[[Category:Power users]]