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Help How to prevent charging battery while syncing

D

Diezelke

Lurker
Hi Guys,

I try to spare my battery as much as possible (just bought my HTC Desire a week ago). If I connect my HTC to my computer to sync my outlook calender, it also starts charging the battery, which is not necessary since my battery lasts a couple of days and I need to sync the calender every day.

Is there someway to prevent the HTC Desire to charge the battery when the USB cable is plugged in the computer so that it will only sync the calender ?

Thanks for your help !
 
@ all: thanks for your replies.
@ Rastaman: with my former HTC S 710 Pro, I could turn of the charging when connected to the computer
@ Lecter: I want to completely drain my battery before charging it. With the automatical battery charging while syncing, this is not possible. If indeed the charging does not hurt battery life, then indeed this is no issue. But I understood from the posts on this forum that it would be wise to completely drain the battery before charging it...

Any thoughts on this ? Is it not possible to disable to automatical battery charging function while the HTC desire is connected with a usb cable to the computer for syncing ?
 
its a lithium ion battery, the battery cycling is different as it doesnt have memory like the old ni-cad batteries

and no its not possible as its not a problem. ive not drained my battery fully in the last 4 months
 
Rastaman-FB said:
its a lithium ion battery, the battery cycling is different as it doesnt have memory like the old ni-cad batteries
Click to expand...
I've been using and working with rechargeable batteries for 20 years and I concur, there is no reason to let the battery run down. In fact, Li-Ion batteries work best and last longer when they are "topped up" rather than run down like older chemistries.

Quite simply, you can not hurt it by giving it daily charges, and you won't hurt it with partial charges either. Also you can't over-charge or under-charge the battery because it has a micro-chip that monitors voltage, capacity, charge cycles, temperature, and that chip will cut off the current even if the phone thinks otherwise.

So just let it charge when you sync the phone, it won't hurt anything at all. Use it and enjoy!
:D
 
But bear in mind that regardless of charging pattern the battery performance will deteriorate after approx 12 months typical use.
 
Actual said:
But bear in mind that regardless of charging pattern the battery performance will deteriorate after approx 12 months typical use.
Click to expand...

In the past when we had 12month contracts this was fine as an upgrade each year seemd right as the battery started to deteriorate Then they added 6 months to the contract time saying "its only another 6 months to wait for a new phone" then they went to 24 months and the same thinking was applied "its only another 6 months to wait for a new phone", i refuse to go 24 months and so have to pay the premium to keep it at 18 months which i think is still too long given how fast technoloigical advancements spits out new equipment. Now they are talking about 36 month contracts by which time a battery that has started failing after 12 months will make the phone totally unusable.
 
"i refuse to go 24 months and so have to pay the premium to keep it at 18 months"

That 'premium' you're paying is likely to be less money overall than you'd have paid for a 24-month contract. That's certainly been the case with any tariff I've ever been offered, anyway.
 
Actual said:
But bear in mind that regardless of charging pattern the battery performance will deteriorate after approx 12 months typical use.
Click to expand...
Depends on the usage and the battery. Typically if you charge once a day, you can get 2-3 years of good use out of a Li-Ion battery. I've had a Motorola Razr V3 for several years now with daily charging and moderate usage for 2 years and the battery is still going strong. I had my iPhone 3G for 2 years with daily charging and its battery was about 95% when I sold it. My Desire has been going for 5 months with daily charging and it's still 100%.

Remember that Li-Ion batteries work best and last the longest (maintain capacity) when they are "topped up" rather than run down. The number of charge cycles is based on full cycle charges, so if it's rated for 500 charges, then you can get 1000 half-charge cycles out of it, give or take. A lot of people make the mistake of fully depleting a Li-Ion battery without knowing that it's bad for them (many people are used to Ni-Cad or Ni-MH which work best when run down). Even the documentation for many phones has poor information about how to maintain a Li-Ion battery, such as charging for 24 hours the first time (Li-Ion batteries have microchips that regulate current, voltage, temp and prevent overcharge so charging for 24 hours is just not needed). And the manuals often state the battery capacity will increase over time, which is also false (capacity is highest when the cells are new - what many people experience is newness reduction where they play with phone less and capacity appears to increase).

So basically, never let your Li-Ion battery die in any device, like cell phones, GPS units, home phones, flashlights, whatever uses Li-Ion cells. I've seen phones with nearly dead batteries because the users killed the batteries everyday for several months. Always charge it when it starts to get low, and top it up every night. It'll last longer than running it down all the time, which kills Li-Ion batteries.
 
bfksc said:
Depends on the usage and the battery. Typically if you charge once a day, you can get 2-3 years of good use out of a Li-Ion battery. I've had a Motorola Razr V3 for several years now with daily charging and moderate usage for 2 years and the battery is still going strong. I had my iPhone 3G for 2 years with daily charging and its battery was about 95% when I sold it. My Desire has been going for 5 months with daily charging and it's still 100%.

Remember that Li-Ion batteries work best and last the longest (maintain capacity) when they are "topped up" rather than run down. The number of charge cycles is based on full cycle charges, so if it's rated for 500 charges, then you can get 1000 half-charge cycles out of it, give or take. A lot of people make the mistake of fully depleting a Li-Ion battery without knowing that it's bad for them (many people are used to Ni-Cad or Ni-MH which work best when run down). Even the documentation for many phones has poor information about how to maintain a Li-Ion battery, such as charging for 24 hours the first time (Li-Ion batteries have microchips that regulate current, voltage, temp and prevent overcharge so charging for 24 hours is just not needed). And the manuals often state the battery capacity will increase over time, which is also false (capacity is highest when the cells are new - what many people experience is newness reduction where they play with phone less and capacity appears to increase).

So basically, never let your Li-Ion battery die in any device, like cell phones, GPS units, home phones, flashlights, whatever uses Li-Ion cells. I've seen phones with nearly dead batteries because the users killed the batteries everyday for several months. Always charge it when it starts to get low, and top it up every night. It'll last longer than running it down all the time, which kills Li-Ion batteries.
Click to expand...

I don't disagree but lets face it, it is a smartphone and it drinks battery capacity. A full battery charge might get you though the day but the battery takes a big hit and the day to day usage is not just topping up it is charging up from an amber low battery warning level. Hence I only expect 12 months useful battery life.

A 12 month battery life is not such a problem with my HTC Desire HD as I can buy another battery or more likely after 12 months I can upgrade my phone.

I purchased my HTC Desire HD outright and I now have a low cost contract and the big advantage to me is that I don't feel a prisoner of the phone provider. Cost wise over 24 months was only
 
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