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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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Sat Nav V Smart phone.
My sat nav battery only lasts about half an hour unless plugged into the fag lighter socket. I was told that the display screen is what consumes the power. The sat nav has a touch screen, but you can touch it with anything - the end of a pencil for example. The smart phone (Samsung Galaxy Ace) can be used as a sat nav for hours without appreciably draining the battery and also has a touch screen, but you have to use a finger or special stylus - the end of a pencil don't not work. Can someone explain the differences in technology? -- Dave - The Medway Handyman www.medwayhandyman.co.uk |
#2
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Sat Nav V Smart phone.
On 01/07/2013 21:38, The Medway Handyman wrote:
My sat nav battery only lasts about half an hour unless plugged into the fag lighter socket. I was told that the display screen is what consumes the power. The sat nav has a touch screen, but you can touch it with anything - the end of a pencil for example. The smart phone (Samsung Galaxy Ace) can be used as a sat nav for hours without appreciably draining the battery and also has a touch screen, but you have to use a finger or special stylus - the end of a pencil don't not work. Can someone explain the differences in technology? Ace - http://en.wikipedia.org/wiki/Capacitive_sensing Sat Nav - (probably) http://en.wikipedia.org/wiki/Resistive_touchscreen Must admit, I am surprised the Ace lasts that well. -- Rod |
#3
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Sat Nav V Smart phone.
The Medway Handyman wrote
My sat nav battery only lasts about half an hour unless plugged into the fag lighter socket. Mine lasts a lot longer than that on a charge. I was told that the display screen is what consumes the power. That's only part of it. The sat nav has a touch screen, but you can touch it with anything - the end of a pencil for example. The smart phone (Samsung Galaxy Ace) can be used as a sat nav for hours without appreciably draining the battery and also has a touch screen, but you have to use a finger or special stylus - the end of a pencil don't not work. Can someone explain the differences in technology? Phones have gone to a lot of trouble to maximise the time between charges, because its not feasible to plug them into the fag lighter socket much of the time. That involves minimising the power use of everything in the phone and blanking the screen auto too. |
#4
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Sat Nav V Smart phone.
On 01/07/2013 21:38, The Medway Handyman wrote:
My sat nav battery only lasts about half an hour unless plugged into the fag lighter socket. I was told that the display screen is what consumes the power. Yup, that's mostly type. The sat nav has a touch screen, but you can touch it with anything - the end of a pencil for example. The smart phone (Samsung Galaxy Ace) can be used as a sat nav for hours without appreciably draining the battery and also has a touch screen, but you have to use a finger or special stylus - the end of a pencil don't not work. Can someone explain the differences in technology? The satnav will likely have a resistive touch screen. These have a slightly soft feel to them and require a small amount of positive pressure to activate. They are older technology, but quite well suited to things that you primarily want to prod at on screen buttons. Modern higher end phones will have capacity touch screen. These just feel like hard glass, and are far more sensitive - they respond to sliding touches and "swipes" better and can usually recognise multiple points of contact simultaneously, allowing recognition of multi finger gestures. Makers of smart phones have worked very hard to get longer battery life. For satnavs its nice, but less essential since they are most often used where there is power available. Older satnavs were often better due to being physically larger and allowing for larger batteries. However as the prices have fallen they have got smaller and cheaper in construction as well as price. My old tomtom go 700 can still do 4 to 5 hours on battery, and that has a (small) spinning hard drive in it. My phone could probably manage similar life - but 5 hours would take a sizeable chuck of its battery capacity (although its a physically very small phone and only has a 950mAh battery). The battery monitor on the phone is quite sophisticated and will tell you which activities are using the power. The display is the number one user. However enabling GPS uses a bit. Wifi uses quite a lot, bluetooth a little bit. Cellular data a fair bit (depending on signal levels). -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
#5
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Sat Nav V Smart phone.
On Monday, 1 July 2013 21:38:01 UTC+1, The Medway Handyman wrote:
My sat nav battery only lasts about half an hour unless plugged into the fag lighter socket. I was told that the display screen is what consumes the power. The sat nav has a touch screen, but you can touch it with anything - the end of a pencil for example. I'm not sure your SatNav battery problem is the general experience. My 3 yr old Garmin goes about 5 hours on its battery and is useful for walking treks, showing the way to the nearest roads anywhere in Europe. The display is only bright on external power. rusty |
#6
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Sat Nav V Smart phone.
In article ,
John Rumm wrote: [Snip] Makers of smart phones have worked very hard to get longer battery life. For satnavs its nice, but less essential since they are most often used where there is power available. Older satnavs were often better due to being physically larger and allowing for larger batteries. However as the prices have fallen they have got smaller and cheaper in construction as well as price. My old tomtom go 700 can still do 4 to 5 hours on battery, and that has a (small) spinning hard drive in it. My phone could probably manage similar life - but 5 hours would take a sizeable chuck of its battery capacity (although its a physically very small phone and only has a 950mAh battery). The battery monitor on the phone is quite sophisticated and will tell you which activities are using the power. The display is the number one user. However enabling GPS uses a bit. Wifi uses quite a lot, bluetooth a little bit. Cellular data a fair bit (depending on signal levels). and being in a steel framed building, where reception is almost impossible, eats up battery life. -- From KT24 Using a RISC OS computer running v5.18 |
#7
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Sat Nav V Smart phone.
On 01/07/2013 23:24, therustyone wrote:
On Monday, 1 July 2013 21:38:01 UTC+1, The Medway Handyman wrote: My sat nav battery only lasts about half an hour unless plugged into the fag lighter socket. I was told that the display screen is what consumes the power. The sat nav has a touch screen, but you can touch it with anything - the end of a pencil for example. I'm not sure your SatNav battery problem is the general experience. My 3 yr old Garmin goes about 5 hours on its battery and is useful for walking treks, showing the way to the nearest roads anywhere in Europe. The display is only bright on external power. rusty The display on my TomTom does not change brightness depending on whether on battery or not. I haven't noticed an option, but could have missed it. On reduced brightness, I am afraid it is difficult to read on bright days. Have just tried that for a while to see if it was usable. Answer is that it is not, for me. So it ends up with somewhere around two hours or so of usable life with screen on. -- Rod |
#8
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Sat Nav V Smart phone.
"The Medway Handyman" wrote in message ... My sat nav battery only lasts about half an hour unless plugged into the fag lighter socket. I was told that the display screen is what consumes the power. The sat nav has a touch screen, but you can touch it with anything - the end of a pencil for example. The smart phone (Samsung Galaxy Ace) can be used as a sat nav for hours without appreciably draining the battery and also has a touch screen, but you have to use a finger or special stylus - the end of a pencil don't not work. Can someone explain the differences in technology? In fairness, if you keep the smartphone screen on with real-time mapping and GPS running constantly (as a dedicated satnav would) then your battery will start draining fairly quickly. |
#9
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Sat Nav V Smart phone.
On Mon, 01 Jul 2013 21:38:01 +0100, The Medway Handyman wrote:
My sat nav battery only lasts about half an hour unless plugged into the fag lighter socket. I was told that the display screen is what consumes the power. The sat nav has a touch screen, but you can touch it with anything - the end of a pencil for example. The smart phone (Samsung Galaxy Ace) can be used as a sat nav for hours without appreciably draining the battery and also has a touch screen, but you have to use a finger or special stylus - the end of a pencil don't not work. Can someone explain the differences in technology? First question is which SatNav you have. I have a TomTom (special deal for older stock) and the battery is hosed. Already changed it once under warranty (just got another by return - they didn't fix the battery). I can buy a new 3rd party battery of t'Internet and there are instructions for fitting it but it does involve some fairly scary levering off of glued down bits to get the old out and the new in. So I've never got to the point where the benefit of a new battery outweighs the risk of screwing it up. So the answer you didn't ask for may be to replace the battery to get more life out of your current SatNav. Cheers Dave R P.S. portable USB power pack might help mobile use as well. |
#10
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Sat Nav V Smart phone.
therustyone posted
I'm not sure your SatNav battery problem is the general experience. My 3 yr old Garmin goes about 5 hours on its battery Mine used to too, until it was left stuck to the windscreen for several hours on a hot day. After that the battery only holds about half an hour's worth of charge at most. -- Les |
#11
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Sat Nav V Smart phone.
On 02/07/2013 12:55 David.WE.Roberts wrote:
I can buy a new 3rd party battery of t'Internet and there are instructions for fitting it but it does involve some fairly scary levering off of glued down bits to get the old out and the new in. So I've never got to the point where the benefit of a new battery outweighs the risk of screwing it up. So the answer you didn't ask for may be to replace the battery to get more life out of your current SatNav. I did this recently with my TomTom and, while the instructions sound fairly scary, it's not too difficult as long as you take your time and are reasonably careful. -- F |
#12
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Sat Nav V Smart phone.
On Tue, 02 Jul 2013 13:17:44 +0100, F wrote:
On 02/07/2013 12:55 David.WE.Roberts wrote: I can buy a new 3rd party battery of t'Internet and there are instructions for fitting it but it does involve some fairly scary levering off of glued down bits to get the old out and the new in. So I've never got to the point where the benefit of a new battery outweighs the risk of screwing it up. So the answer you didn't ask for may be to replace the battery to get more life out of your current SatNav. I did this recently with my TomTom and, while the instructions sound fairly scary, it's not too difficult as long as you take your time and are reasonably careful. Thanks - I keep meaning to do it towards the end of my year of map updates so there is only the base cost at risk. |
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